【编程不良人】SpringSecurity实战学习笔记02---自定义认证

「爱情、让人受尽委屈。」 2023-10-09 14:33 24阅读 0赞

*  认证配置
 *  表单认证
 *  注销登录
 *  前后端分离认证
 *  添加验证码

### 3.1 自定义资源权限规则 ###

**配套视频：**[【编程不良人】SpringSecurity 最新实战教程，更新中...\_哔哩哔哩\_bilibili][SpringSecurity _..._bilibili]

*  /index：主页，公共资源，可以直接访问
 *  /hello .... ：受保护资源，需要权限管理（认证授权之后才能访问），默认所有资源都是受保护的，需要认证授权之后才能访问

**在项目中添加如下配置就可以实现对资源权限规则设定:**

@Configuration
     public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
         @Override
         /**
          * 说明: SpringBoot2.6.2版本
          *    permitAll() 代表放行该资源,该资源为公共资源，无需认证和授权可以直接访问
          *    anyRequest().authenticated() 代表所有请求,必须认证之后才能访问
          *    formLogin() 代表开启表单认证
          * 注意: 放行资源必须放在所有认证请求之前!
          */
         protected void configure(HttpSecurity http) throws Exception {
             http.authorizeHttpRequests()
                     .mvcMatchers("/index").permitAll() //放行资源写在任何前面
                     .anyRequest().authenticated()
                     .and().formLogin();
         }
     }

**注意：**在SpringBoot 2.7.1 中的spring-security-config-5.7.2.RELEASE中已提到WebSecurityConfigurerAdapter已过时被弃用，替代方法如下：

1.  使用 SecurityFilterChain Bean 来配置 HttpSecurity；
2.  使用 WebSecurityCustomizer Bean 来配置 WebSecurity。

**参考链接：**

*  [SpringSecurity - WebSecurityConfigurerAdapter 过时问题\_爱上云原生的博客-CSDN博客][SpringSecurity - WebSecurityConfigurerAdapter _-CSDN]
 *  [Spring Security即将弃用配置类WebSecurityConfigurerAdapter\_码农小胖哥的博客-CSDN博客][Spring Security_WebSecurityConfigurerAdapter_-CSDN]

**替代后新代码为：**

**总结：**新替代方案中Spring Security 就不需要再去继承WebSecurityConfigurerAdapter，然后重写 configure()方法了，直接通过 filterChain() 方法就能使用 HttpSecurity 来配置相关信息。

**重启项目，测试访问index请求时直接放行，访问hello请求时需要登录后才能正常访问！！！**

### 3.2 自定义登录界面 ###

**配套视频：**[【编程不良人】SpringSecurity 最新实战教程，更新中...\_哔哩哔哩\_bilibili][SpringSecurity _..._bilibili 1]

*  **pom.xml引入Thymeleaf模板依赖**
    
         
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-thymeleaf</artifactId>
         </dependency>

*  **application.properties配置Thymeleaf**

# Thymeleaf配置
     # 关闭缓存
     spring.thymeleaf.cache=false 
     # 默认前缀路径，可不配置
     spring.thymeleaf.prefix=classpath:/templates/
     # 默认文件后缀，可不配置
     spring.thymeleaf.suffix=.html

*  **定义登录页面LoginController**
    
         package com.study.controller;
         
         import org.springframework.stereotype.Controller;
         import org.springframework.web.bind.annotation.RequestMapping;
         
         /**
          * @ClassName LoginController
          * @Description TODO
          * @Author Jiangnan Cui
          * @Date 2022/7/23 17:47
          * @Version 1.0
          */
         @Controller
         public class LoginController {
             @RequestMapping("/login.html") //注意此处是login.html而不是login
             public String login() {
                 return "login";//封装为login.html
             }
         }
 *  **在 templates 中定义登录界面login.html**
    
         <!DOCTYPE html>
         <html lang="en" xmlns:th="https://www.thymeleaf.org">
         <head>
             <meta charset="UTF-8">
             <title>登录页面</title>
         </head>
         <body>
         <h1>用户登录</h1>
         <form method="post" th:action="@{/doLogin}">
             用户名：<input name="uname" type="text"/><br> 
             密码： <input name="pwd" type="password"/><br> 
             <input type="submit" value="登录"/>
         </form>
         </body>
         </html>
    
    **需要注意的是：**
    
     *  登录表单 method 必须为 `post`，action 的请求路径可以定义为 `/doLogin`
     *  用户名的 name 属性为 `username`，用户名可以指定为除username外的其他名称
     *  密码的 name 属性为 `password`，密码可以指定为除password外的其他名称
 *  **配置 Spring Security 配置类WebSecurityConfigurer**
    
         package com.study.config;
         
         import org.springframework.context.annotation.Configuration;
         import org.springframework.security.config.annotation.web.builders.HttpSecurity;
         import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
         
         /**
          * @ClassName WebSecurityConfigurer
          * @Description TODO
          * @Author Jiangnan Cui
          * @Date 2022/7/21 22:34
          * @Version 1.0
          */
         @Configuration
         public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
             @Override
             protected void configure(HttpSecurity http) throws Exception {
                 http.authorizeRequests()
                         .mvcMatchers("/index").permitAll() //放行/index请求
                         .mvcMatchers("/login.html").permitAll() //放行/login.html请求
                         .anyRequest().authenticated() //其它请求需要登录认证后才能访问
                         .and()
                         .formLogin() //默认form表单页面登录
                         .loginPage("/login.html") //使用自定义登录页面登录页面登录
                         .loginProcessingUrl("/doLogin") //使用自定义登录页面时需要重新指定url，对应login.html中的action路径
                         .usernameParameter("uname") //重新指定用户名名称
                         .passwordParameter("pwd") //重新指定密码名称
                         .successForwardUrl("/index") //认证成功后跳转路径
                         //forward 跳转路径  始终在认证成功之后跳转到指定请求 地址栏不变
                         //.defaultSuccessUrl("/hello") //默认认证成功后跳转路径
                         //.defaultSuccessUrl("/hello",true) //第二个参数设置为true时总是跳转，效果同successForwardUrl一致，默认false
                         //redirect 重定向  注意:如果之前有请求过的路径,会优先跳转之前的请求路径 地址栏改变
                         .failureUrl("/login.html") //登录失败后跳转路径
                         .and()
                         .csrf().disable();//此处先关闭CSRF跨站保护
             }
         }
         
    
    **注意：**successForwardUrl 、defaultSuccessUrl 这两个方法都可以实现成功之后跳转，其中：
    
     *  successForwardUrl 默认使用 `forward`跳转 `注意:不会跳转到之前请求路径`
     *  defaultSuccessUrl 默认使用 `redirect` 跳转 `注意:如果之前请求路径,会有优先跳转之前请求路径,可以传入第二个参数进行修改`

### 3.3 自定义登录成功处理 ###

**配套视频：**[【编程不良人】SpringSecurity 最新实战教程，更新中...\_哔哩哔哩\_bilibili][SpringSecurity _..._bilibili 2]

有时候页面跳转并不能满足我们，特别是在前后端分离开发中就不需要成功之后跳转页面，只需要给前端返回一个 JSON数据通知登录成功还是失败与否，这个时候可以通过自定义 `AuthenticationSucccessHandler` 实现。

public interface AuthenticationSuccessHandler {
         /**
          * Called when a user has been successfully authenticated.
          * @param request the request which caused the successful authentication
          * @param response the response
          * @param authentication the <tt>Authentication</tt> object which was created during
          * the authentication process.
          */
         void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
                 Authentication authentication) throws IOException, ServletException;
     }

**根据接口的描述信息也可以得知，登录成功后会自动回调这个方法，进一步查看它的默认实现，你会发现successForwardUrl、defaultSuccessUrl也是由它的子类实现的：**

![0029d1646fe140b4a1c6c004a9461f78.png][]

*  **在config包中自定义 AuthenticationSuccessHandler接口实现类MyAuthenticationSuccessHandler**

package com.study.config;
     
     import com.fasterxml.jackson.databind.ObjectMapper;
     import org.springframework.security.core.Authentication;
     import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
     
     import javax.servlet.ServletException;
     import javax.servlet.http.HttpServletRequest;
     import javax.servlet.http.HttpServletResponse;
     import java.io.IOException;
     import java.util.HashMap;
     import java.util.Map;
     
     /**
      * @ClassName MyAuthenticationSuccessHandler
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/7/23 20:30
      * @Version 1.0
      */
     public class MyAuthenticationSuccessHandler implements AuthenticationSuccessHandler {
         @Override
         public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
             Map<String, Object> result = new HashMap<String, Object>();
             result.put("msg", "登录成功");//打印登录成功信息
             result.put("status", 200);//打印状态码
             result.put("authentication", authentication);//打印认证信息
             response.setContentType("application/json;charset=UTF-8");//设置响应类型
             String s = new ObjectMapper().writeValueAsString(result);//json格式转字符串
             response.getWriter().println(s);//打印json格式数据
         }
     }

*  **在WebSecurityConfigurer中配置MyAuthenticationSuccessHandler**

package com.study.config;
     
     import org.springframework.context.annotation.Configuration;
     import org.springframework.security.config.annotation.web.builders.HttpSecurity;
     import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
     
     /**
      * @ClassName WebSecurityConfigurer
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/7/21 22:34
      * @Version 1.0
      */
     @Configuration
     public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
         @Override
         protected void configure(HttpSecurity http) throws Exception {
             ......
                     //.successForwardUrl("/index") //认证成功后跳转路径 forward 跳转路径  始终在认证成功之后跳转到指定请求 地址栏不变
                     //.defaultSuccessUrl("/hello") //默认认证成功后跳转路径 redirect 重定向  注意:如果之前有请求过的路径,会优先跳转之前的请求路径 地址栏改变
                     //.defaultSuccessUrl("/hello",true) //第二个参数设置为true时总是跳转，效果同successForwardUrl一致，默认false
                     .successHandler(new MyAuthenticationSuccessHandler())//认证成功时处理，前后端分离解决方案
                     .and()
                     .csrf().disable();//此处先关闭CSRF跨站保护
         }
     }

*  **访问路径：[http://localhost:8080/hello][http_localhost_8080_hello]，输入用户名密码登录后，输出结果：**

![985c2dbed43d4160b25681c05a29d911.png][]

####  ####

### 3.4 显示登录失败信息 ###

**配套视频：**[【编程不良人】SpringSecurity 最新实战教程，更新中...\_哔哩哔哩\_bilibili][SpringSecurity _..._bilibili 3]

为了能更直观地在登录页面看到异常错误信息，可以在登录页面中直接获取异常信息。Spring Security 在登录失败之后会将异常信息存储到 `request` 、`session`作用域中key为 `SPRING_SECURITY_LAST_EXCEPTION` 命名属性中，源码可以参考 SimpleUrlAuthenticationFailureHandler ：

//
     // Source code recreated from a .class file by IntelliJ IDEA
     // (powered by FernFlower decompiler)
     //
     
     package org.springframework.security.web.authentication;
     
     import java.io.IOException;
     import javax.servlet.ServletException;
     import javax.servlet.http.HttpServletRequest;
     import javax.servlet.http.HttpServletResponse;
     import javax.servlet.http.HttpSession;
     import org.apache.commons.logging.Log;
     import org.apache.commons.logging.LogFactory;
     import org.springframework.http.HttpStatus;
     import org.springframework.security.core.AuthenticationException;
     import org.springframework.security.web.DefaultRedirectStrategy;
     import org.springframework.security.web.RedirectStrategy;
     import org.springframework.security.web.util.UrlUtils;
     import org.springframework.util.Assert;
     
     public class SimpleUrlAuthenticationFailureHandler implements AuthenticationFailureHandler {
         protected final Log logger = LogFactory.getLog(this.getClass());
         private String defaultFailureUrl;
         private boolean forwardToDestination = false;
         private boolean allowSessionCreation = true;
         private RedirectStrategy redirectStrategy = new DefaultRedirectStrategy();
     
         public SimpleUrlAuthenticationFailureHandler() {
         }
     
         public SimpleUrlAuthenticationFailureHandler(String defaultFailureUrl) {
             this.setDefaultFailureUrl(defaultFailureUrl);
         }
     
         public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
             if (this.defaultFailureUrl == null) {
                 if (this.logger.isTraceEnabled()) {
                     this.logger.trace("Sending 401 Unauthorized error since no failure URL is set");
                 } else {
                     this.logger.debug("Sending 401 Unauthorized error");
                 }
     
                 response.sendError(HttpStatus.UNAUTHORIZED.value(), HttpStatus.UNAUTHORIZED.getReasonPhrase());
             } else {
                 this.saveException(request, exception);
                 if (this.forwardToDestination) {
                     this.logger.debug("Forwarding to " + this.defaultFailureUrl);
                     request.getRequestDispatcher(this.defaultFailureUrl).forward(request, response);
                 } else {
                     this.redirectStrategy.sendRedirect(request, response, this.defaultFailureUrl);
                 }
     
             }
         }
     
         protected final void saveException(HttpServletRequest request, AuthenticationException exception) {
             if (this.forwardToDestination) {
                 request.setAttribute("SPRING_SECURITY_LAST_EXCEPTION", exception);
             } else {
                 HttpSession session = request.getSession(false);
                 if (session != null || this.allowSessionCreation) {
                     request.getSession().setAttribute("SPRING_SECURITY_LAST_EXCEPTION", exception);
                 }
     
             }
         }
     
         public void setDefaultFailureUrl(String defaultFailureUrl) {
             Assert.isTrue(UrlUtils.isValidRedirectUrl(defaultFailureUrl), () -> {
                 return "'" + defaultFailureUrl + "' is not a valid redirect URL";
             });
             this.defaultFailureUrl = defaultFailureUrl;
         }
     
         protected boolean isUseForward() {
             return this.forwardToDestination;
         }
     
         public void setUseForward(boolean forwardToDestination) {
             this.forwardToDestination = forwardToDestination;
         }
     
         public void setRedirectStrategy(RedirectStrategy redirectStrategy) {
             this.redirectStrategy = redirectStrategy;
         }
     
         protected RedirectStrategy getRedirectStrategy() {
             return this.redirectStrategy;
         }
     
         protected boolean isAllowSessionCreation() {
             return this.allowSessionCreation;
         }
     
         public void setAllowSessionCreation(boolean allowSessionCreation) {
             this.allowSessionCreation = allowSessionCreation;
         }
     }

![575bc183d8324271bf43668d7dffde5a.png][]

*  **login.html中添加显示异常信息代码**
    
         <!DOCTYPE html>
         <html lang="en" xmlns:th="https://www.thymeleaf.org">
         <head>
             <meta charset="UTF-8">
             <title>登录页面</title>
         </head>
         <body>
         <h1>用户登录</h1>
         ...
         <h2>
             
             <div th:text="${session.SPRING_SECURITY_LAST_EXCEPTION}"></div>
         </h2>
         </body>
         </html>
 *  **WebSecurityConfigurer配置登录失败处理**
    
         package com.study.config;
         
         import org.springframework.context.annotation.Configuration;
         import org.springframework.security.config.annotation.web.builders.HttpSecurity;
         import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
         
         /**
          * @ClassName WebSecurityConfigurer
          * @Description TODO
          * @Author Jiangnan Cui
          * @Date 2022/7/21 22:34
          * @Version 1.0
          */
         @Configuration
         public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
             @Override
             protected void configure(HttpSecurity http) throws Exception {
                 http.authorizeRequests()
                         .......
                         .successHandler(new MyAuthenticationSuccessHandler())//认证成功时处理，前后端分离解决方案
                         //.failureForwardUrl("/login.html")//认证失败之后，forward跳转
                         .failureUrl("/login.html") //默认认证失败之后，redirect跳转
                         .and()
                         .csrf().disable();//此处先关闭CSRF跨站保护
             }
         }
         
    
    **注意：**failureUrl、failureForwardUrl 关系类似于之前提到的 successForwardUrl 、defaultSuccessUrl 方法
    
     *  failureUrl：失败以后的重定向跳转
     *  failureForwardUrl：失败以后的 forward 跳转
        
        `注意:因此获取 request 中异常信息,这里只能使用failureForwardUrl`
 *  **启动项目，测试路径：[http://localhost:8080/hello][http_localhost_8080_hello]，输入错误的用户名和密码时会输出如下错误信息，注意login.html与WebSecurityConfigurer对failureForwardUrl或failureUrl的配置一致：**

**（1）failureForwardUrl：forward跳转，request作用域**

![81e9df61e2f741fa90703fe106326851.png][]

**（2）failureUrl：redirect跳转，session作用域**

![a3e348be6a5342afa49b74ec99d39891.png][]

### 3.5 自定义登录失败处理 ###

**配套视频：**[【编程不良人】SpringSecurity 最新实战教程，更新中...\_哔哩哔哩\_bilibili][SpringSecurity _..._bilibili 4]

和自定义登录成功处理一样，Spring Security 同样为前后端分离开发提供了登录失败的处理，这个类就是 AuthenticationFailureHandler，源码为：

public interface AuthenticationFailureHandler {
     
         /**
          * Called when an authentication attempt fails.
          * @param request the request during which the authentication attempt occurred.
          * @param response the response.
          * @param exception the exception which was thrown to reject the authentication
          * request.
          */
         void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response,
                 AuthenticationException exception) throws IOException, ServletException;
     
     }

**根据接口的描述信息,也可以得知登录失败会自动回调这个方法，进一步查看它的默认实现，你会发现failureUrl、failureForwardUrl也是由它的子类实现的。**

![6f7e89e406874255b478f3f1e38a8afc.png][]

*  **config包中自定义 AuthenticationFailureHandler接口实现类MyAuthenticationFailureHandler**

package com.study.config;
     
     import com.fasterxml.jackson.databind.ObjectMapper;
     import org.springframework.security.core.AuthenticationException;
     import org.springframework.security.web.authentication.AuthenticationFailureHandler;
     
     import javax.servlet.ServletException;
     import javax.servlet.http.HttpServletRequest;
     import javax.servlet.http.HttpServletResponse;
     import java.io.IOException;
     import java.util.HashMap;
     import java.util.Map;
     
     /**
      * @ClassName MyAuthenticationFailureHandler
      * @Description 自定义认证失败处理
      * @Author Jiangnan Cui
      * @Date 2022/7/24 15:54
      * @Version 1.0
      */
     public class MyAuthenticationFailureHandler implements AuthenticationFailureHandler {
         @Override
         public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
             Map<String, Object> result = new HashMap<String, Object>();
             result.put("msg", "登录失败：" + exception.getMessage());
             result.put("status", 500);
             response.setContentType("application/json;charset=UTF-8");
             String s = new ObjectMapper().writeValueAsString(result);
             response.getWriter().println(s);
         }
     }

*  **WebSecurityConfigurer配置MyAuthenticationFailureHandler**

package com.study.config;
     
     import org.springframework.context.annotation.Configuration;
     import org.springframework.security.config.annotation.web.builders.HttpSecurity;
     import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
     
     /**
      * @ClassName WebSecurityConfigurer
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/7/21 22:34
      * @Version 1.0
      */
     @Configuration
     public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
         @Override
         protected void configure(HttpSecurity http) throws Exception {
             http.authorizeRequests()
                     .......
                     //.failureForwardUrl("/login.html")//认证失败之后，forward跳转
                     //.failureUrl("/login.html") //默认认证失败之后，redirect跳转
                     .failureHandler(new MyAuthenticationFailureHandler())//认证失败时处理，前后端解决方案
                     .and()
                     .csrf().disable();//此处先关闭CSRF跨站保护
         }
     }

*  **测试路径：[http://localhost:8080/hello][http_localhost_8080_hello]，输入错误的用户名或密码后输出如下结果：**

![3301df2082ce4948913ab3854823449b.png][]

####  ####

### 3.6 注销登录 ###

**配套视频：**[【编程不良人】SpringSecurity 最新实战教程，更新中...\_哔哩哔哩\_bilibili][SpringSecurity _..._bilibili 5]

Spring Security 中也提供了默认的注销登录配置，在开发时也可以按照自己需求对注销进行个性化定制。

*  **开启注销登录（默认开启）**
    
         package com.study.config;
         
         import org.springframework.context.annotation.Configuration;
         import org.springframework.security.config.annotation.web.builders.HttpSecurity;
         import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
         import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
         import org.springframework.security.web.util.matcher.OrRequestMatcher;
         
         /**
          * @ClassName WebSecurityConfigurer
          * @Description TODO
          * @Author Jiangnan Cui
          * @Date 2022/7/21 22:34
          * @Version 1.0
          */
         @Configuration
         public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
             @Override
             protected void configure(HttpSecurity http) throws Exception {
                 http.authorizeRequests()
                         .......
                         .failureHandler(new MyAuthenticationFailureHandler())//认证失败时处理，前后端解决方案
                         .and()
                         .logout()
                         .logoutUrl("/logout")//指定注销登录URL，默认请求方式必须为GET
                         .invalidateHttpSession(true)//默认开启会话失效
                         .clearAuthentication(true)//默认清除认证标志
                         .logoutSuccessUrl("/login.html")//注销登录成功后跳转的页面
                         .and()
                         .csrf().disable();//此处先关闭CSRF跨站保护
             }
         }
         
    
     **测试注销路径：登录成功后，访问：[http://localhost:8080/hello][http_localhost_8080_hello]，通过访问：[http://localhost:8080/logout][http_localhost_8080_logout]，进行注销登录。**
    
    **注意：**
    
     *  通过 logout() 方法开启注销配置
     *  logoutUrl 指定退出登录请求地址，默认是 GET 请求，路径为 `/logout`
     *  invalidateHttpSession 退出时是否使session 失效，默认值为 true
     *  clearAuthentication 退出时是否清除认证信息，默认值为 true
     *  logoutSuccessUrl 退出登录时跳转地址
 *  **配置多个注销登录请求**
    
    如果项目中有需要，开发者还可以配置多个注销登录的请求，同时还可以指定请求的方法：
    
         package com.study.config;
         
         import org.springframework.context.annotation.Configuration;
         import org.springframework.security.config.annotation.web.builders.HttpSecurity;
         import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
         import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
         import org.springframework.security.web.util.matcher.OrRequestMatcher;
         
         /**
          * @ClassName WebSecurityConfigurer
          * @Description TODO
          * @Author Jiangnan Cui
          * @Date 2022/7/21 22:34
          * @Version 1.0
          */
         @Configuration
         public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
             @Override
             protected void configure(HttpSecurity http) throws Exception {
                 http.authorizeRequests()
                         .......
                         .failureHandler(new MyAuthenticationFailureHandler())//认证失败时处理，前后端解决方案
                         .and()
                         .logout()
                         //.logoutUrl("/logout")//指定注销登录URL，默认请求方式必须为GET
                         .logoutRequestMatcher(new OrRequestMatcher(
                                 new AntPathRequestMatcher("/aaa", "GET"),
                                 new AntPathRequestMatcher("/bbb", "POST")
                         ))
                         .invalidateHttpSession(true)//默认开启会话失效
                         .clearAuthentication(true)//默认清除认证标志
                         .logoutSuccessUrl("/login.html")//注销登录成功后跳转的页面
                         .and()
                         .csrf().disable();//此处先关闭CSRF跨站保护
             }
         }
         
    
    **注意：**
    
     *  GET请求直接在地址栏访问，注销登录路径：[http://localhost:8080/aaa][http_localhost_8080_aaa]
     *  POST方式需要新建表单及对应的Controller，注销登录路径：[http://localhost:8080/logout.html][http_localhost_8080_logout.html]
        
         *  **logout.html**
            
                 <!DOCTYPE html>
                 <html lang="en" xmlns:th="https://www.thymeleaf.org">
                 <head>
                     <meta charset="UTF-8">
                     <title>注销页面</title>
                 </head>
                 <body>
                 <h1>用户注销</h1>
                 <form method="post" th:action="@{/bbb}">
                     <input type="submit" value="注销登录"/>
                 </form>
                 </body>
                 </html>
        
         *  **LogoutController**
            
                 package com.study.controller;
                 
                 import org.springframework.stereotype.Controller;
                 import org.springframework.web.bind.annotation.RequestMapping;
                 
                 /**
                  * @ClassName LogoutController
                  * @Description TODO
                  * @Author Jiangnan Cui
                  * @Date 2022/7/24 18:15
                  * @Version 1.0
                  */
                 @Controller
                 public class LogoutController {
                   @RequestMapping("logout.html")
                     public String logout() {
                         return "logout";
                     }
                 }
 *  **前后端分离注销登录配置**
    
    **配套视频：**[【编程不良人】SpringSecurity 最新实战教程，更新中...\_哔哩哔哩\_bilibili][SpringSecurity _..._bilibili 6]
    
    如果是前后端分离开发，注销成功之后就不需要页面跳转了，只需要将注销成功的信息返回前端即可，此时我们可以通过自定义 LogoutSuccessHandler 实现来返回注销之后信息：
    
     *  **编写LogoutSuccessHandler接口实现类MyLogoutSuccessHandler**
    
         package com.study.config;
         
         import com.fasterxml.jackson.databind.ObjectMapper;
         import org.springframework.security.core.Authentication;
         import org.springframework.security.web.authentication.logout.LogoutSuccessHandler;
         
         import javax.servlet.ServletException;
         import javax.servlet.http.HttpServletRequest;
         import javax.servlet.http.HttpServletResponse;
         import java.io.IOException;
         import java.util.HashMap;
         import java.util.Map;
         
         /**
          * @ClassName MyLogoutSuccessHandler
          * @Description 自定义认证注销处理
          * @Author Jiangnan Cui
          * @Date 2022/7/23 20:30
          * @Version 1.0
          */
         public class MyLogoutSuccessHandler implements LogoutSuccessHandler {
             @Override
             public void onLogoutSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
                 Map<String, Object> result = new HashMap<String, Object>();
                 result.put("msg", "注销成功，当前认证对象为：" + authentication);//打印认证信息
                 result.put("status", 200);//打印状态码
                 response.setContentType("application/json;charset=UTF-8");//设置响应类型
                 String s = new ObjectMapper().writeValueAsString(result);//json格式转字符串
                 response.getWriter().println(s);//打印json格式数据
             }
         }
         
    
     *  **WebSecurityConfigurer配置MyLogoutSuccessHandler**
    
         package com.study.config;
         
         import org.springframework.context.annotation.Configuration;
         import org.springframework.security.config.annotation.web.builders.HttpSecurity;
         import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
         import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
         import org.springframework.security.web.util.matcher.OrRequestMatcher;
         
         /**
          * @ClassName WebSecurityConfigurer
          * @Description TODO
          * @Author Jiangnan Cui
          * @Date 2022/7/21 22:34
          * @Version 1.0
          */
         @Configuration
         public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
             @Override
             protected void configure(HttpSecurity http) throws Exception {
                 http.authorizeRequests()
                         .......
                         .failureHandler(new MyAuthenticationFailureHandler())//认证失败时处理，前后端解决方案
                         .and()
                         .logout()
                         //.logoutUrl("/logout")//指定注销登录URL，默认请求方式必须为GET
                         .logoutRequestMatcher(new OrRequestMatcher(
                                 new AntPathRequestMatcher("/aaa", "GET"),
                                 new AntPathRequestMatcher("/bbb", "POST")
                         ))
                         .invalidateHttpSession(true)//默认开启会话失效
                         .clearAuthentication(true)//默认清除认证标志
                         //.logoutSuccessUrl("/login.html")//注销登录成功后跳转的页面
                         .logoutSuccessHandler(new MyLogoutSuccessHandler())
                         .and()
                         .csrf().disable();//此处先关闭CSRF跨站保护
             }
         }

**测试路径：http://localhost:8080/aaa**

![d0df7bf252de4962a0bb6c44372664de.png][]

**测试路径：[http://localhost:8080/logout.html][http_localhost_8080_aaa]**

![9360e49a818346f9a26db2d0e837791f.png][]

### 3.7 登录用户数据获取 ###

**配套视频：**[18.获取用户认证信息\_哔哩哔哩\_bilibili][18._bilibili]

#### 3.7.1 SecurityContextHolder介绍 ####

Spring Security 会将登录用户数据保存在 Session 中，但是，为了使用方便，Spring Security在此基础上还做了一些改进，其中最主要的一个变化就是线程绑定：当用户登录成功后，Spring Security 会将登录成功的用户信息保存到 SecurityContextHolder 中。

SecurityContextHolder 中的数据保存默认是通过ThreadLocal 来实现的，使用 ThreadLocal 创建的变量只能被当前线程访问，不能被其他线程访问和修改，也就是用户数据和请求线程绑定在一起。当登录请求处理完毕后，Spring Security 会将 SecurityContextHolder 中的数据拿出来保存到 Session 中，同时将 SecurityContexHolder 中的数据清空。以后每当有请求到来时，Spring Security 就会先从 Session 中取出用户登录数据，保存到SecurityContextHolder 中，方便在该请求的后续处理过程中使用，同时在请求结束时将 SecurityContextHolder 中的数据拿出来保存到 Session 中，然后将SecurityContextHolder 中的数据清空。

**实际上 SecurityContextHolder 中存储是 SecurityContext，在 SecurityContext 中存储是 Authentication。**

**![d725ac27ee32470287f58d021abb2594.png][]**

**这种设计是典型的策略设计模式：**

public class SecurityContextHolder {
         public static final String MODE_THREADLOCAL = "MODE_THREADLOCAL";
         public static final String MODE_INHERITABLETHREADLOCAL = "MODE_INHERITABLETHREADLOCAL";
         public static final String MODE_GLOBAL = "MODE_GLOBAL";
         private static final String MODE_PRE_INITIALIZED = "MODE_PRE_INITIALIZED";
         private static SecurityContextHolderStrategy strategy;
       //....
         private static void initializeStrategy() {
             if (MODE_PRE_INITIALIZED.equals(strategyName)) {
                 Assert.state(strategy != null, "When using " + MODE_PRE_INITIALIZED
                         + ", setContextHolderStrategy must be called with the fully constructed strategy");
                 return;
             }
             if (!StringUtils.hasText(strategyName)) {
                 // Set default
                 strategyName = MODE_THREADLOCAL;
             }
             if (strategyName.equals(MODE_THREADLOCAL)) {
                 strategy = new ThreadLocalSecurityContextHolderStrategy();
                 return;
             }
             if (strategyName.equals(MODE_INHERITABLETHREADLOCAL)) {
                 strategy = new InheritableThreadLocalSecurityContextHolderStrategy();
                 return;
             }
             if (strategyName.equals(MODE_GLOBAL)) {
                 strategy = new GlobalSecurityContextHolderStrategy();
                 return;
             }
         //.....
       }
     }

**三种策略详细解释：**

1.  `MODE THREADLOCAL`：这种存放策略是将 SecurityContext 存放在 ThreadLocal中，大家知道 Threadlocal 的特点是在哪个线程中存储就要在哪个线程中读取，这其实非常适合 web 应用，因为在默认情况下，一个请求无论经过多少 Filter 到达 Servlet，都是由一个线程来处理的，这也是 SecurityContextHolder 的默认存储策略，这种存储策略意味着如果在具体的业务处理代码中，开启了子线程，在子线程中去获取登录用户数据，就会获取不到。
2.  `MODE INHERITABLETHREADLOCAL`：这种存储模式适用于多线程环境，如果希望在子线程中也能够获取到登录用户数据，那么就可以使用这种存储模式，使用时需要在VM Options单独进行配置（实际上是将父线程的用户数据复制一份到子线程）。
3.  `MODE GLOBAL`：这种存储模式实际上是将数据保存在一个静态变量中，在 JavaWeb开发中，这种模式很少使用到（了解即可）。

####  ####

#### 3.7.2 SecurityContextHolderStrategy介绍 ####

通过 SecurityContextHolder 可以得知，SecurityContextHolderStrategy 接口用来定义存储策略方法：

public interface SecurityContextHolderStrategy {
         void clearContext();
         SecurityContext getContext();
         void setContext(SecurityContext context);
         SecurityContext createEmptyContext();
     }

**接口中一共定义了四个方法：**

*  `clearContext`：该方法用来清除存储的 SecurityContext对象。
 *  `getContext`：该方法用来获取存储的 SecurityContext 对象。
 *  `setContext`：该方法用来设置存储的 SecurityContext 对象。
 *  `createEmptyContext`：该方法则用来创建一个空的 SecurityContext 对象。

![99e6487d88fa4639b165ce6fd17e5f05.png][]**从上面可以看出每一个实现类对应一种策略的实现。**

#### 3.7.3 代码中获取认证之后的用户数据 ####

@RestController
     public class HelloController {
         @RequestMapping("/hello")
         public String hello() {
             System.out.println("Hello Spring Security!");
             Authentication authentication = SecurityContextHolder.getContext().getAuthentication();//获得认证信息
             System.out.println("authentication.getName() = " + authentication.getName());
             System.out.println("authentication.getAuthorities() = " + authentication.getAuthorities());
             System.out.println("authentication.getCredentials() = " + authentication.getCredentials());
             System.out.println("authentication.getDetails() = " + authentication.getDetails());
             System.out.println("authentication.getPrincipal() = " + authentication.getPrincipal());
     
             User principal = (User) authentication.getPrincipal();//返回值类型为User时需要进行强制转换 org.springframework.security.core.userdetails.User
             System.out.println("principal.getUsername() = " + principal.getUsername());
             System.out.println("principal.getPassword() = " + principal.getPassword());
             System.out.println("principal.getAuthorities() = " + principal.getAuthorities());
             return "hello spring security!";
         }
     }

**启动服务，登录成功后访问：[http://localhost:8080/hello][http_localhost_8080_hello]，获得认证之后的用户数据。**

**IDEA控制台输出结果：**

Hello Spring Security!
     authentication.getName() = root
     authentication.getAuthorities() = [ROLE_admin, ROLE_super]
     authentication.getCredentials() = null
     authentication.getDetails() = WebAuthenticationDetails [RemoteIpAddress=0:0:0:0:0:0:0:1, SessionId=15FEA49E4810C435286FD8B6D188C87F]
     authentication.getPrincipal() = org.springframework.security.core.userdetails.User [Username=root, Password=[PROTECTED], Enabled=true, AccountNonExpired=true, credentialsNonExpired=true, AccountNonLocked=true, Granted Authorities=[ROLE_admin, ROLE_super]]
     principal.getUsername() = root
     principal.getPassword() = null
     principal.getAuthorities() = [ROLE_admin, ROLE_super]

####  ####

#### 3.7.4 多线程情况下获取用户数据 ####

package com.study.controller;
     
     import org.springframework.security.core.Authentication;
     import org.springframework.security.core.context.SecurityContextHolder;
     import org.springframework.security.core.userdetails.User;
     import org.springframework.web.bind.annotation.RequestMapping;
     import org.springframework.web.bind.annotation.RestController;
     
     /**
      * @ClassName HelloController
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/7/6 12:12
      * @Version 1.0
      */
     @RestController
     public class HelloController {
         @RequestMapping("/hello")
         public String hello() {
             System.out.println("Hello Spring Security!");
             new Thread(() -> {
                 Authentication Authentication = SecurityContextHolder.getContext().getAuthentication();
                 User childPrincipal = (User) Authentication.getPrincipal();
                 System.out.println("Principal.getUsername() = " + Principal.getUsername());
                 System.out.println("Principal.getPassword() = " + Principal.getPassword());
                 System.out.println("Principal.getAuthorities() = " + Principal.getAuthorities());
             }).start();
             return "hello spring security!";
         }
     }

**启动服务，访问：[http://localhost:8080/hello][http_localhost_8080_hello]，获得认证之后的用户数据。**

**视频中报错：**

![de5775b3f2f44e329b0f0c62d5e03d45.png][]

**实际测试报错：**

Exception in thread "Thread-2" java.lang.NullPointerException
         at com.study.controller.HelloController.lambda$hello$0(HelloController.java:35)
         at java.lang.Thread.run(Thread.java:750)

**从上面可以看到默认策略，是无法在子线程中获取用户信息，如果需要在子线程中获取必须使用第二种策略，默认策略是通过 System.getProperty 加载的，因此我们可以通过增加 VM Options 参数进行修改。**

-Dspring.security.strategy=MODE_INHERITABLETHREADLOCAL

![03f279b015e34b3c9dbc5a551a2a179a.png][]**启动服务，访问：[http://localhost:8080/hello][http_localhost_8080_hello]，获得认证之后的用户数据。**

**IDEA控制台输出结果：**

Hello Spring Security!
     Principal.getUsername() = root
     Principal.getPassword() = null
     Principal.getAuthorities() = [ROLE_admin, ROLE_super]

#### 3.7.5 页面上获取用户信息 ####

**配套视频：**[19.页面中获取用户认证信息\_哔哩哔哩\_bilibili][19._bilibili]

*  pom.xml引入依赖
    
         <dependency>
           <groupId>org.thymeleaf.extras</groupId>
           <artifactId>thymeleaf-extras-springsecurity5</artifactId>
           <version>3.0.4.RELEASE</version>
         </dependency>
 *  logout.html页面加入命名空间
    
         <html lang="en" xmlns:th="https://www.thymeleaf.org" 
         xmlns:sec="http://www.thymeleaf.org/extras/spring-security">
 *  logout.html页面中获取用户信息
    
         
         <ul>
           <li sec:authentication="principal.username"></li>
           <li sec:authentication="principal.authorities"></li>
           <li sec:authentication="principal.accountNonExpired"></li>
           <li sec:authentication="principal.accountNonLocked"></li>
           <li sec:authentication="principal.credentialsNonExpired"></li>
         </ul>

**启动服务，登录成功后访问logout.html：[http://localhost:8080/logout.html][http_localhost_8080_logout.html]**

![de1da2d6ac764ef8a7d9d3168bb46d91.png][]

### 3.8 自定义认证数据源 ###

**配套视频：**[20.自定义数据源之认证流程分析\_哔哩哔哩\_bilibili][20._bilibili]

#### 3.8.1 认证流程分析 ####

[Servlet Authentication Architecture :: Spring Security][Servlet Authentication Architecture _ Spring Security]

![5a98868d9fea46da8447e30ae31f8f2b.png][]

*  发起认证请求，请求中携带用户名、密码，该请求会被`UsernamePasswordAuthenticationFilter` 拦截
 *  在`UsernamePasswordAuthenticationFilter`的`attemptAuthentication`方法中将请求中用户名和密码，封装为`Authentication`对象，并交给`AuthenticationManager` 进行认证
 *  认证成功，将认证信息存储到 SecurityContextHodler 以及调用记住我等，并回调 `AuthenticationSuccessHandler` 处理
 *  认证失败，清除 SecurityContextHodler 以及 记住我中信息，回调 `AuthenticationFailureHandler` 处理

#### 3.8.2 AuthenticationManager、ProviderManager 、AuthenticationProvider三者关系 ####

从上面分析中得知，AuthenticationManager 是认证的核心类，但实际上在底层真正认证时还离不开 ProviderManager 以及 AuthenticationProvider 。他们三者关系是样的呢？

*  `AuthenticationManager`：是一个认证管理器，它定义了 Spring Security 过滤器要执行认证操作。
 *  `ProviderManager`：AuthenticationManager接口的实现类，Spring Security 认证时默认使用就是的 ProviderManager。
 *  `AuthenticationProvider`：就是针对不同的身份类型执行的具体的身份认证。

**（1）AuthenticationManager 与 ProviderManager**：父子关系

![a526ecad87fa4488bf0883b0775c1bb9.png][]

ProviderManager 是 AuthenticationManager 的唯一实现（其它实现要么是私有的，要么是静态的，不能被使用），也是 Spring Security 默认使用的实现。从这里不难看出，默认情况下AuthenticationManager 就是一个ProviderManager。

**（2）ProviderManager 与 AuthenticationProvider**

**摘自官方:** [Servlet Authentication Architecture :: Spring Security][Servlet Authentication Architecture _ Spring Security]

![de543840e85d405a973fd5803039ed97.png][]

在 Spring Security 中，允许系统同时支持多种不同的认证方式，例如同时支持用户名/密码认证、RememberMe 认证、手机号码动态认证等，而不同的认证方式对应了不同的 AuthenticationProvider，所以一个完整的认证流程可能由多个 AuthenticationProvider 来提供。

多个 AuthenticationProvider 将组成一个列表，这个列表将由 ProviderManager 代理。换句话说，在ProviderManager 中存在一个 AuthenticationProvider 列表，在Provider Manager 中遍历列表中的每一个 AuthenticationProvider 去执行身份认证，最终得到认证结果。

ProviderManager 本身也可以再配置一个 AuthenticationManager 作为 parent，这样当ProviderManager 认证失败之后，就可以进入到 parent 中再次进行认证。理论上来说，ProviderManager 的 parent 可以是任意类型的 AuthenticationManager，但是通常都是由ProviderManager 来扮演 parent 的角色，也就是 ProviderManager 是 ProviderManager 的 parent。

ProviderManager 本身也可以有多个，多个ProviderManager 共用同一个 parent。有时，一个应用程序有受保护资源的逻辑组（例如，所有符合路径模式的网络资源，如/api/\*\*），每个组可以有自己的专用 AuthenticationManager。通常，每个组都是一个ProviderManager，它们共享一个父级。然后，父级是一种 `全局`资源，作为所有提供者的后备资源。

根据上面的介绍，我们绘出新的 AuthenticationManager、ProvideManager 和 AuthentictionProvider 关系：

**摘自官网:** [Topical Guide | Spring Security Architecture][Topical Guide _ Spring Security Architecture]

![1a366a963d514252b96eb9c802732add.png][]

**配套视频：**[21.自定义数据源之原理分析 (一)\_哔哩哔哩\_bilibili][21._ _bilibili]

弄清楚认证原理之后我们来看下具体认证时数据源的获取:`默认情况下，AuthenticationProvider是由DaoAuthenticationProvider类来实现认证的，在DaoAuthenticationProvider认证时又通过UserDetailsService完成数据源的校验。`他们之间调用关系如下：

![61a634a59fa147c2b88734d887245503.png][] **总结:** AuthenticationManager 是认证管理器，在 Spring Security 中有全局AuthenticationManager，也可以有局部AuthenticationManager。全局的AuthenticationManager用来对全局认证进行处理，局部的AuthenticationManager用来对某些特殊资源认证处理。当然无论是全局认证管理器还是局部认证管理器都是由 ProviderManger 进行实现。 每一个ProviderManger中都代理一个AuthenticationProvider的列表，列表中每一个实现代表一种身份认证方式，认证时底层数据源需要调用 UserDetailService 来实现。

#### 3.8.3 配置全局 AuthenticationManager ####

**配套视频：**[22.自定义数据源之原理分析(二)\_哔哩哔哩\_bilibili][22._bilibili]

[23.自定义数据源之全局配置AuthenticationManager方式\_哔哩哔哩\_bilibili][23._AuthenticationManager_bilibili]

**官方网站：**[Topical Guide | Spring Security Architecture][Topical Guide _ Spring Security Architecture]

*  **默认的全局 AuthenticationManager**：springboot 对 security 进行自动配置时，自动在工厂中创建一个全局AuthenticationManager
    
         //springboot对security默认配置中,在工厂中默认创建AuthenticationManager
         @Autowired //此段代码是从官网复制来的
         public void initialize(AuthenticationManagerBuilder builder) throws Exception {
             System.out.println("springboot默认配置: " + builder);
         }
         /**
          * 输出结果：
          *    springboot默认配置: org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration$DefaultPasswordEncoderAuthenticationManagerBuilder@60297f36
          */
    
    **总结**：默认自动配置创建的全局AuthenticationManager
    
     *  默认查找当前项目中是否存在自定义的UserDetailService 实例，自动将当前项目UserDetailService 实例设置为数据源；
     *  在工厂中使用时直接在代码中注入即可。
 *  **自定义全局 AuthenticationManager**
    
         @Configuration
         public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
           @Override
           public void configure(AuthenticationManagerBuilder builder) {
             //builder ....
           }
         }
    
    **总结**：一旦通过 configure 方法自定义AuthenticationManager的实现
    
    1.  就会将工厂中自动配置的AuthenticationManager进行覆盖；
    2.  需要在实现中指定认证数据源对象UserDetaiService实例；
    3.  这种方式创建的AuthenticationManager对象是**工厂内部**本地的一个 AuthenticationManager对象，不允许在其他自定义组件中进行注入。
 *  **用来在工厂中暴露自定义AuthenticationManager 实例**
    
         @Configuration
         public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
           
             //1.自定义AuthenticationManager  推荐使用这种方式，而不是直接使用默认自动配置的，但这种方式并没有在工厂中暴露出来
             @Override
             public void configure(AuthenticationManagerBuilder builder) throws Exception {
                 System.out.println("自定义AuthenticationManager: " + builder);
                 builder.userDetailsService(userDetailsService());
             }
         
             //作用: 用来将自定义AuthenticationManager在工厂中进行暴露,可以在任何位置注入
             @Override
             @Bean //记得加上此注解，将对象注入工厂
             public AuthenticationManager authenticationManagerBean() throws Exception {
                 return super.authenticationManagerBean();
             }
         }

**测试代码总结：**

package com.study.config;
     
     import org.springframework.context.annotation.Bean;
     import org.springframework.context.annotation.Configuration;
     import org.springframework.security.authentication.AuthenticationManager;
     import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
     import org.springframework.security.config.annotation.web.builders.HttpSecurity;
     import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
     import org.springframework.security.core.userdetails.User;
     import org.springframework.security.core.userdetails.UserDetailsService;
     import org.springframework.security.provisioning.InMemoryUserDetailsManager;
     import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
     import org.springframework.security.web.util.matcher.OrRequestMatcher;
     
     /**
      * @ClassName WebSecurityConfigurer
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/7/21 22:34
      * @Version 1.0
      */
     @Configuration
     public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
         //1.默认AuthenticationManager：springboot对security默认配置中,在工厂中默认创建AuthenticationManager
     //    @Autowired //代码从官网复制而来
     //    public void initialize(AuthenticationManagerBuilder builder) throws Exception {
     //        System.out.println("springboot默认配置:" + builder);
     //        builder.userDetailsService(userDetailsService());
     //    }
     
         /**
          * 未定义UserDetailsService前：启动服务，重新访问hello路径，发现原先的用户名、密码组合失效，需要使用master、123456才能登录成功
          * 输出结果：
          *    springboot默认配置:org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration$DefaultPasswordEncoderAuthenticationManagerBuilder@68ace111
          */
     
         //在工厂中自定义userDetailsService
         @Bean
         public UserDetailsService userDetailsService() {
             InMemoryUserDetailsManager userDetailsService = new InMemoryUserDetailsManager();
             userDetailsService.createUser(User.withUsername("master").password("{noop}123456").roles("admin").build());//noop表示明文
             return userDetailsService;
         }
     
         /**
          * 定义UserDetailsService后启动服务测试结果：
          *    上面这段(1.默认AuthenticationManager：)默认可以不写，写的时候会报错：
          *    org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'webSecurityConfigurer':
          *    Requested bean is currently in creation: Is there an unresolvable circular reference?
          * 这段代码显得多余了
          */
     
         //2.自定义AuthenticationManager 推荐使用这种自定义方式，但并没有在工厂中进行暴露
         @Override
         public void configure(AuthenticationManagerBuilder builder) throws Exception {
             System.out.println("自定义AuthenticationManager:" + builder);
             builder.userDetailsService(userDetailsService());
         }
         /**
          * 启动服务，重新访问hello路径，发现原先的用户名、密码组合失效，需要使用master、123456才能登录成功
          * 输出结果：
          *    自定义AuthenticationManager:org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter$2@24fabd0f
          */
     
         //作用: 用来将自定义AuthenticationManager在工厂中进行暴露,可以在任何位置注入
         @Override
         @Bean
         public AuthenticationManager authenticationManagerBean() throws Exception {
             return super.authenticationManagerBean();
         }
         
         @Override
         protected void configure(HttpSecurity http) throws Exception {
             http.authorizeRequests()
                     .mvcMatchers("/index").permitAll() //放行/index请求
                     .mvcMatchers("/login.html").permitAll() //放行/login.html请求
                     .anyRequest().authenticated() //其它请求需要登录认证后才能访问
                     .and()
                     .formLogin() //默认form表单页面登录
                     .loginPage("/login.html") //使用自定义登录页面登录页面登录
                     .loginProcessingUrl("/doLogin") //使用自定义登录页面时需要重新指定url，对应login.html中的action路径
                     .usernameParameter("uname") //重新指定用户名名称
                     .passwordParameter("pwd") //重新指定密码名称
                     //.successForwardUrl("/index") //认证成功后跳转路径
                     //forward 跳转路径  始终在认证成功之后跳转到指定请求 地址栏不变
                     //.defaultSuccessUrl("/hello") //默认认证成功后跳转路径
                     //.defaultSuccessUrl("/hello",true) //第二个参数设置为true时总是跳转，效果同successForwardUrl一致，默认false
                     //redirect 重定向  注意:如果之前有请求过的路径,会优先跳转之前的请求路径 地址栏改变
                     .successHandler(new MyAuthenticationSuccessHandler())//认证成功时处理，前后端分离解决方案
                     //.failureForwardUrl("/login.html")//认证失败之后，forward跳转
                     //.failureUrl("/login.html") //默认认证失败之后，redirect跳转
                     .failureHandler(new MyAuthenticationFailureHandler())//认证失败时处理，前后端解决方案
                     .and()
                     .logout()
                     //.logoutUrl("/logout")//指定注销登录URL，默认请求方式必须为GET
                     .logoutRequestMatcher(new OrRequestMatcher(
                             new AntPathRequestMatcher("/aaa", "GET"),
                             new AntPathRequestMatcher("/bbb", "POST")
                     ))
                     .invalidateHttpSession(true)//默认开启会话失效
                     .clearAuthentication(true)//默认清除认证标志
                     //.logoutSuccessUrl("/login.html")//注销登录成功后跳转的页面
                     .logoutSuccessHandler(new MyLogoutSuccessHandler())
                     .and()
                     .csrf().disable();//此处先关闭CSRF跨站保护
         }
     }

#### 3.8.4 自定义内存数据源 ####

**配套视频：**[24.自定义数据源之全局配置AuthenticationManager总结\_哔哩哔哩\_bilibili][24._AuthenticationManager_bilibili]

**通过上面分析可以重点在于UserDetailsService，查看UserDetailsService接口如下：**

public interface UserDetailsService {
         UserDetails loadUserByUsername(String username) throws UsernameNotFoundException;
     }

**里面只有一个要实现的方法loadUserByUsername，返回类型为UserDetails，查看UserDetails定义如下：**

public interface UserDetails extends Serializable {
         Collection<? extends GrantedAuthority> getAuthorities();
         String getPassword();
         String getUsername();
         boolean isAccountNonExpired();
         boolean isAccountNonLocked();
         boolean isCredentialsNonExpired();
         boolean isEnabled();
     }

**通过在UserDetails上Ctrl+H可以在右侧查看其实现类User：**

![2434149a943243f5949aa64fe211a460.png][]**User定义如下：**

//
     // Source code recreated from a .class file by IntelliJ IDEA
     // (powered by FernFlower decompiler)
     //
     
     package org.springframework.security.core.userdetails;
     
     import java.io.Serializable;
     import java.util.ArrayList;
     import java.util.Arrays;
     import java.util.Collection;
     import java.util.Collections;
     import java.util.Comparator;
     import java.util.Iterator;
     import java.util.List;
     import java.util.Objects;
     import java.util.Set;
     import java.util.SortedSet;
     import java.util.TreeSet;
     import java.util.function.Function;
     import org.apache.commons.logging.Log;
     import org.apache.commons.logging.LogFactory;
     import org.springframework.security.core.CredentialsContainer;
     import org.springframework.security.core.GrantedAuthority;
     import org.springframework.security.core.authority.AuthorityUtils;
     import org.springframework.security.core.authority.SimpleGrantedAuthority;
     import org.springframework.security.crypto.factory.PasswordEncoderFactories;
     import org.springframework.security.crypto.password.PasswordEncoder;
     import org.springframework.util.Assert;
     
     public class User implements UserDetails, CredentialsContainer {
         private static final long serialVersionUID = 560L;
         private static final Log logger = LogFactory.getLog(User.class);
         private String password;
         private final String username;
         private final Set<GrantedAuthority> authorities;
         private final boolean accountNonExpired;
         private final boolean accountNonLocked;
         private final boolean credentialsNonExpired;
         private final boolean enabled;
     
         public User(String username, String password, Collection<? extends GrantedAuthority> authorities) {
             this(username, password, true, true, true, true, authorities);
         }
     
         public User(String username, String password, boolean enabled, boolean accountNonExpired, boolean credentialsNonExpired, boolean accountNonLocked, Collection<? extends GrantedAuthority> authorities) {
             Assert.isTrue(username != null && !"".equals(username) && password != null, "Cannot pass null or empty values to constructor");
             this.username = username;
             this.password = password;
             this.enabled = enabled;
             this.accountNonExpired = accountNonExpired;
             this.credentialsNonExpired = credentialsNonExpired;
             this.accountNonLocked = accountNonLocked;
             this.authorities = Collections.unmodifiableSet(sortAuthorities(authorities));
         }
     
         public Collection<GrantedAuthority> getAuthorities() {
             return this.authorities;
         }
     
         public String getPassword() {
             return this.password;
         }
     
         public String getUsername() {
             return this.username;
         }
     
         public boolean isEnabled() {
             return this.enabled;
         }
     
         public boolean isAccountNonExpired() {
             return this.accountNonExpired;
         }
     
         public boolean isAccountNonLocked() {
             return this.accountNonLocked;
         }
     
         public boolean isCredentialsNonExpired() {
             return this.credentialsNonExpired;
         }
     
         public void eraseCredentials() {
             this.password = null;
         }
     
         private static SortedSet<GrantedAuthority> sortAuthorities(Collection<? extends GrantedAuthority> authorities) {
             Assert.notNull(authorities, "Cannot pass a null GrantedAuthority collection");
             SortedSet<GrantedAuthority> sortedAuthorities = new TreeSet(new AuthorityComparator());
             Iterator var2 = authorities.iterator();
     
             while(var2.hasNext()) {
                 GrantedAuthority grantedAuthority = (GrantedAuthority)var2.next();
                 Assert.notNull(grantedAuthority, "GrantedAuthority list cannot contain any null elements");
                 sortedAuthorities.add(grantedAuthority);
             }
     
             return sortedAuthorities;
         }
     
         public boolean equals(Object obj) {
             return obj instanceof User ? this.username.equals(((User)obj).username) : false;
         }
     
         public int hashCode() {
             return this.username.hashCode();
         }
     
         public String toString() {
             StringBuilder sb = new StringBuilder();
             sb.append(this.getClass().getName()).append(" [");
             sb.append("Username=").append(this.username).append(", ");
             sb.append("Password=[PROTECTED], ");
             sb.append("Enabled=").append(this.enabled).append(", ");
             sb.append("AccountNonExpired=").append(this.accountNonExpired).append(", ");
             sb.append("credentialsNonExpired=").append(this.credentialsNonExpired).append(", ");
             sb.append("AccountNonLocked=").append(this.accountNonLocked).append(", ");
             sb.append("Granted Authorities=").append(this.authorities).append("]");
             return sb.toString();
         }
     
         public static UserBuilder withUsername(String username) {
             return builder().username(username);
         }
     
         public static UserBuilder builder() {
             return new UserBuilder();
         }
     
         /** @deprecated */
         @Deprecated
         public static UserBuilder withDefaultPasswordEncoder() {
             logger.warn("User.withDefaultPasswordEncoder() is considered unsafe for production and is only intended for sample applications.");
             PasswordEncoder encoder = PasswordEncoderFactories.createDelegatingPasswordEncoder();
             UserBuilder var10000 = builder();
             Objects.requireNonNull(encoder);
             return var10000.passwordEncoder(encoder::encode);
         }
     
         public static UserBuilder withUserDetails(UserDetails userDetails) {
             return withUsername(userDetails.getUsername()).password(userDetails.getPassword()).accountExpired(!userDetails.isAccountNonExpired()).accountLocked(!userDetails.isAccountNonLocked()).authorities(userDetails.getAuthorities()).credentialsExpired(!userDetails.isCredentialsNonExpired()).disabled(!userDetails.isEnabled());
         }
     
         public static final class UserBuilder {
             private String username;
             private String password;
             private List<GrantedAuthority> authorities;
             private boolean accountExpired;
             private boolean accountLocked;
             private boolean credentialsExpired;
             private boolean disabled;
             private Function<String, String> passwordEncoder;
     
             private UserBuilder() {
                 this.passwordEncoder = (password) -> {
                     return password;
                 };
             }
     
             public UserBuilder username(String username) {
                 Assert.notNull(username, "username cannot be null");
                 this.username = username;
                 return this;
             }
     
             public UserBuilder password(String password) {
                 Assert.notNull(password, "password cannot be null");
                 this.password = password;
                 return this;
             }
     
             public UserBuilder passwordEncoder(Function<String, String> encoder) {
                 Assert.notNull(encoder, "encoder cannot be null");
                 this.passwordEncoder = encoder;
                 return this;
             }
     
             public UserBuilder roles(String... roles) {
                 List<GrantedAuthority> authorities = new ArrayList(roles.length);
                 String[] var3 = roles;
                 int var4 = roles.length;
     
                 for(int var5 = 0; var5 < var4; ++var5) {
                     String role = var3[var5];
                     Assert.isTrue(!role.startsWith("ROLE_"), () -> {
                         return role + " cannot start with ROLE_ (it is automatically added)";
                     });
                     authorities.add(new SimpleGrantedAuthority("ROLE_" + role));
                 }
     
                 return this.authorities((Collection)authorities);
             }
     
             public UserBuilder authorities(GrantedAuthority... authorities) {
                 return this.authorities((Collection)Arrays.asList(authorities));
             }
     
             public UserBuilder authorities(Collection<? extends GrantedAuthority> authorities) {
                 this.authorities = new ArrayList(authorities);
                 return this;
             }
     
             public UserBuilder authorities(String... authorities) {
                 return this.authorities((Collection)AuthorityUtils.createAuthorityList(authorities));
             }
     
             public UserBuilder accountExpired(boolean accountExpired) {
                 this.accountExpired = accountExpired;
                 return this;
             }
     
             public UserBuilder accountLocked(boolean accountLocked) {
                 this.accountLocked = accountLocked;
                 return this;
             }
     
             public UserBuilder credentialsExpired(boolean credentialsExpired) {
                 this.credentialsExpired = credentialsExpired;
                 return this;
             }
     
             public UserBuilder disabled(boolean disabled) {
                 this.disabled = disabled;
                 return this;
             }
     
             public UserDetails build() {
                 String encodedPassword = (String)this.passwordEncoder.apply(this.password);
                 return new User(this.username, encodedPassword, !this.disabled, !this.accountExpired, !this.credentialsExpired, !this.accountLocked, this.authorities);
             }
         }
     
         private static class AuthorityComparator implements Comparator<GrantedAuthority>, Serializable {
             private static final long serialVersionUID = 560L;
     
             private AuthorityComparator() {
             }
     
             public int compare(GrantedAuthority g1, GrantedAuthority g2) {
                 if (g2.getAuthority() == null) {
                     return -1;
                 } else {
                     return g1.getAuthority() == null ? 1 : g1.getAuthority().compareTo(g2.getAuthority());
                 }
             }
         }
     }

**主要关注User的几个成员变量：**

private String password;
     private final String username;
     private final Set<GrantedAuthority> authorities;
     private final boolean accountNonExpired;
     private final boolean accountNonLocked;
     private final boolean credentialsNonExpired;
     private final boolean enabled;

**举例：**

@Configuration
     public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
     
         @Bean
         public UserDetailsService userDetailsService(){
             InMemoryUserDetailsManager inMemoryUserDetailsManager
                     = new InMemoryUserDetailsManager();
             UserDetails u1 = User.withUsername("zhangs")
                     .password("{noop}111").roles("USER").build();
             inMemoryUserDetailsManager.createUser(u1);
             return inMemoryUserDetailsManager;
         }
     
         @Override
         protected void configure(AuthenticationManagerBuilder auth) 
           throws Exception {
             auth.userDetailsService(userDetailsService());
         }   
     }

#### 3.8.5 自定义数据库数据源 ####

**配套视频：**[25.自定义数据源之库表设计(一)\_哔哩哔哩\_bilibili][25._bilibili]

[26.自定义数据源之实现(二)\_哔哩哔哩\_bilibili][26._bilibili]

*  设计表结构
    
         -- 用户表 共有多个用户
         CREATE TABLE `user`
         (
             `id`                    int(11) NOT NULL AUTO_INCREMENT,
             `username`              varchar(32)  DEFAULT NULL,
             `password`              varchar(255) DEFAULT NULL,
             `enabled`               tinyint(1) DEFAULT NULL,
             `accountNonExpired`     tinyint(1) DEFAULT NULL,
             `accountNonLocked`      tinyint(1) DEFAULT NULL,
             `credentialsNonExpired` tinyint(1) DEFAULT NULL,
             PRIMARY KEY (`id`)
         ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;
         
         -- 角色表 共有多个角色，其中，_zh表示中文
         CREATE TABLE `role`
         (
             `id`      int(11) NOT NULL AUTO_INCREMENT,
             `name`    varchar(32) DEFAULT NULL,
             `name_zh` varchar(32) DEFAULT NULL,
             PRIMARY KEY (`id`)
         ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;
          
         -- 用户角色关系表：用户与角色为多对多关系，需要建立中间表
         CREATE TABLE `user_role`
         (
             `id`  int(11) NOT NULL AUTO_INCREMENT,
             `uid` int(11) DEFAULT NULL,
             `rid` int(11) DEFAULT NULL,
             PRIMARY KEY (`id`),
             KEY   `uid` (`uid`),
             KEY   `rid` (`rid`)
         ) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;

*  **Navicat新建MySQL数据库security，字符集utf8mb4：**

![011e242f9bfc407eadc4de4654b0e6ae.png][]

*  **security数据库上，右键新建查询：** ![6dd2f882bcb9481bb340d62d4ff9d414.png][]

**执行SQL语句：**

![ec90ed2d625e4db48857df83ba04748f.png][]

*  **插入测试数据**
    
         -- 插入用户数据
         BEGIN;
           INSERT INTO `user`
           VALUES (1, 'root', '{noop}123', 1, 1, 1, 1);
           INSERT INTO `user`
           VALUES (2, 'admin', '{noop}123', 1, 1, 1, 1);
           INSERT INTO `user`
           VALUES (3, 'blr', '{noop}123', 1, 1, 1, 1);
         COMMIT;
         
         -- 插入角色数据 授权时ROLE_进行处理，RBAC
         BEGIN;
           INSERT INTO `role`
           VALUES (1, 'ROLE_product', '商品管理员');
           INSERT INTO `role`
           VALUES (2, 'ROLE_admin', '系统管理员');
           INSERT INTO `role`
           VALUES (3, 'ROLE_user', '用户管理员');
         COMMIT;
         
         -- 插入用户角色数据
         BEGIN;
           INSERT INTO `user_role`
           VALUES (1, 1, 1);
           INSERT INTO `user_role`
           VALUES (2, 1, 2);
           INSERT INTO `user_role`
           VALUES (3, 2, 2);
           INSERT INTO `user_role`
           VALUES (4, 3, 3);
         COMMIT;

*  **security数据库上，右键新建查询，插入数据：**

![9ed797b8b91b411f84e64e9b71364118.png][]

**插入后查看表中是否包含数据：**

![15df7588b3f44b9f889dd0b6fa314616.png][]

**接下来进行SpringBoot整合mybatis**

*  **项目的pom.xml中引入依赖**
    
         
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
             <version>1.2.7</version>
         </dependency>
         
         
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
             <version>5.1.38</version>
         </dependency>
         
         
         <dependency>
             <groupId>org.mybatis.spring.boot</groupId>
             <artifactId>mybatis-spring-boot-starter</artifactId>
             <version>2.2.0</version>
         </dependency>
 *  **application.properties进行数据源、mybatis、日志配置**
    
         # datasource：类型、驱动名、用户名、密码
         spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
         spring.datasource.driver-class-name=com.mysql.jdbc.Driver
         spring.datasource.url=jdbc:mysql://localhost:3306/security?characterEncoding=UTF-8&useSSL=false
         spring.datasource.username=root
         spring.datasource.password=root
         
         # mybatis配置mapper文件的位置和别名设置
         # 注意mapper目录（包）新建时必须使用"/"，而不是.
         mybatis.mapper-locations=classpath:com/study/mapper/*.xml
         mybatis.type-aliases-package=com.study.entity
         
         # log:为了显示mybatis运行SQL语句
         logging.level.com.study=debug
 *  **创建 entity实体类包**
    
     *  **创建User 对象**
        
             package com.study.entity;
             
             import org.springframework.security.core.GrantedAuthority;
             import org.springframework.security.core.authority.SimpleGrantedAuthority;
             import org.springframework.security.core.userdetails.UserDetails;
             
             import java.util.*;
             
             /**
              * @ClassName User
              * @Description 用户类，对应表user，为了与UserDetails中的User对应，此处进行实现
              * @Author Jiangnan Cui
              * @Date 2022/8/7 11:43
              * @Version 1.0
              */
             public class User implements UserDetails {
                 private Integer id;
                 private String username;
                 private String password;
                 private Boolean enabled;
                 private Boolean accountNonExpired;
                 private Boolean accountNonLocked;
                 private Boolean credentialsNonExpired;
                 private List<Role> roles = new ArrayList<>();//关系属性，用来存储当前用户所有角色信息
             
                 //返回权限信息
                 @Override
                 public Collection<? extends GrantedAuthority> getAuthorities() {
                     Set<SimpleGrantedAuthority> authorities = new HashSet<>();
                     roles.forEach(role -> {
                         SimpleGrantedAuthority simpleGrantedAuthority = new SimpleGrantedAuthority(role.getName());
                         authorities.add(simpleGrantedAuthority);
                     });
                     return authorities;
                 }
             
                 @Override
                 public String getPassword() {
                     return password;
                 }
             
                 public void setPassword(String password) {
                     this.password = password;
                 }
             
                 @Override
                 public String getUsername() {
                     return username;
                 }
             
                 public void setUsername(String username) {
                     this.username = username;
                 }
             
                 @Override
                 public boolean isAccountNonExpired() {
                     return accountNonLocked;
                 }
             
                 @Override
                 public boolean isAccountNonLocked() {
                     return accountNonLocked;
                 }
             
                 @Override
                 public boolean isCredentialsNonExpired() {
                     return credentialsNonExpired;
                 }
             
                 @Override
                 public boolean isEnabled() {
                     return enabled;
                 }
             
                 public Integer getId() {
                     return id;
                 }
             
                 public void setId(Integer id) {
                     this.id = id;
                 }
             
                 public Boolean getEnabled() {
                     return enabled;
                 }
             
                 public void setEnabled(Boolean enabled) {
                     this.enabled = enabled;
                 }
             
                 public Boolean getAccountNonExpired() {
                     return accountNonExpired;
                 }
             
                 public void setAccountNonExpired(Boolean accountNonExpired) {
                     this.accountNonExpired = accountNonExpired;
                 }
             
                 public Boolean getAccountNonLocked() {
                     return accountNonLocked;
                 }
             
                 public void setAccountNonLocked(Boolean accountNonLocked) {
                     this.accountNonLocked = accountNonLocked;
                 }
             
                 public Boolean getCredentialsNonExpired() {
                     return credentialsNonExpired;
                 }
             
                 public void setCredentialsNonExpired(Boolean credentialsNonExpired) {
                     this.credentialsNonExpired = credentialsNonExpired;
                 }
             
                 public List<Role> getRoles() {
                     return roles;
                 }
             
                 public void setRoles(List<Role> roles) {
                     this.roles = roles;
                 }
             }
     *  **创建 Role 对象**
        
             package com.study.entity;
             
             /**
              * @ClassName Role
              * @Description 角色类，对应表role
              * @Author Jiangnan Cui
              * @Date 2022/8/7 11:44
              * @Version 1.0
              */
             public class Role {
                 private Integer id;
                 private String name;
                 private String nameZh;
             
                 public Integer getId() {
                     return id;
                 }
             
                 public void setId(Integer id) {
                     this.id = id;
                 }
             
                 public String getName() {
                     return name;
                 }
             
                 public void setName(String name) {
                     this.name = name;
                 }
             
                 public String getNameZh() {
                     return nameZh;
                 }
             
                 public void setNameZh(String nameZh) {
                     this.nameZh = nameZh;
                 }
             }
             
 *  **创建 UserDao 接口**
    
         package com.study.dao;
         
         import com.study.entity.Role;
         import com.study.entity.User;
         import org.apache.ibatis.annotations.Mapper;
         
         import java.util.List;
         
         /**
          * @ClassName UserDao
          * @Description TODO
          * @Author Jiangnan Cui
          * @Date 2022/8/7 12:09
          * @Version 1.0
          */
         @Mapper
         public interface UserDao {
             /**
              * 根据用户名查找用户
              * @param username
              * @return
              */
             User loadUserByUsername(String username);
         
             /**
              * 根据用户id查询一个角色，注意一个用户可能不止一种角色
              * @param uid
              * @return
              */
             List<Role> getRolesByUid(Integer uid);
         }
 *  **创建 UserMapper 实现**
    
         <?xml version="1.0" encoding="UTF-8"?>
         <!DOCTYPE mapper
                 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                 "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
         
         <mapper namespace="com.study.dao.UserDao">
             
             <select id="loadUserByUsername" resultType="User">
                 select id,
                        username,
                        password,
                        enabled,
                        accountNonExpired,
                        accountNonLocked,
                        credentialsNonExpired
                 from user
                 where username = #{username}
             </select>
         
             
             <select id="getRolesByUid" resultType="Role">
                 select r.id,
                        r.name,
                        r.name_zh nameZh
                 from role r,
                      user_role ur
                 where r.id = ur.rid
                   and ur.uid = #{uid}
             </select>
         </mapper>
 *  **创建 UserDetailService 实例**
    
         package com.study.service;
         
         import com.study.dao.UserDao;
         import com.study.entity.Role;
         import com.study.entity.User;
         import org.springframework.beans.factory.annotation.Autowired;
         import org.springframework.security.core.userdetails.UserDetails;
         import org.springframework.security.core.userdetails.UserDetailsService;
         import org.springframework.security.core.userdetails.UsernameNotFoundException;
         import org.springframework.stereotype.Service;
         import org.springframework.util.ObjectUtils;
         
         import java.util.List;
         
         /**
          * @ClassName MyUserDetailsService
          * @Description TODO
          * @Author Jiangnan Cui
          * @Date 2022/8/7 11:26
          * @Version 1.0
          */
         @Service
         public class MyUserDetailsService implements UserDetailsService {
             private UserDao userDao;
         
             @Autowired
             public MyUserDetailsService(UserDao userDao) {
                 this.userDao = userDao;
             }
         
             @Override
             public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
                 //1.查询用户
                 User user = userDao.loadUserByUsername(username);
                 if (ObjectUtils.isEmpty(user))
                     throw new RuntimeException("用户不存在");
                 //2.查询权限信息
                 List<Role> roles = userDao.getRolesByUid(user.getId());
                 user.setRoles(roles);
                 return user;
             }
         }
 *  **配置 authenticationManager 使用自定义UserDetailService**
    
         @Configuration
         public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
           
             private final UserDetailsService userDetailsService;
         
             @Autowired
             public WebSecurityConfigurer(UserDetailsService userDetailsService) {
                 this.userDetailsService = userDetailsService;
             }
         
             @Override
             protected void configure(AuthenticationManagerBuilder builder) throws Exception {
                 builder.userDetailsService(userDetailsService);
             }
           
             
             @Override
             protected void configure(HttpSecurity http) throws Exception {
               //web security..
             }
         }
 *  **启动测试：**访问[http://localhost:8080/login.html][http_localhost_8080_login.html]，登录数据库中的用户可正常访问，显示登录成功，用户不存在时抛出异常！

### 3.9 传统web开发认证总结案例 ###

**配套视频：**[27.传统web开发认证总结案例\_哔哩哔哩\_bilibili][27._web_bilibili]

#### 3.9.1 新建项目 ####

新建module：spring-security-03web，引入Spring Web。

#### 3.9.2 pom.xml引入依赖 ####

<dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-thymeleaf</artifactId>
     </dependency>
     
     
     <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-security</artifactId>
     </dependency>
     
     
     <dependency>
         <groupId>org.thymeleaf.extras</groupId>
         <artifactId>thymeleaf-extras-springsecurity5</artifactId>
         <version>3.0.4.RELEASE</version>
     </dependency>
     
     
     <dependency>
         <groupId>com.alibaba</groupId>
         <artifactId>druid</artifactId>
         <version>1.2.7</version>
     </dependency>
     
     
     <dependency>
         <groupId>mysql</groupId>
         <artifactId>mysql-connector-java</artifactId>
         <version>5.1.38</version>
     </dependency>
     
     
     <dependency>
         <groupId>org.mybatis.spring.boot</groupId>
         <artifactId>mybatis-spring-boot-starter</artifactId>
         <version>2.2.0</version>
     </dependency>

#### 3.9.3 application.properties添加配置 ####

# 配置Thymeleaf
     spring.thymeleaf.cache=false
     spring.thymeleaf.prefix=classpath:/templates/
     spring.thymeleaf.suffix=.html
     spring.thymeleaf.encoding=UTF-8
     spring.thymeleaf.mode=HTML
     # datasource：类型、驱动名、用户名、密码
     spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
     spring.datasource.driver-class-name=com.mysql.jdbc.Driver
     spring.datasource.url=jdbc:mysql://localhost:3306/security?characterEncoding=UTF-8&useSSL=false
     spring.datasource.username=root
     spring.datasource.password=root
     # mybatis配置mapper文件的位置和别名设置
     # 注意mapper目录（包）新建时必须使用"/"，而不是.
     mybatis.mapper-locations=classpath:com/study/mapper/*.xml
     mybatis.type-aliases-package=com.study.entity
     # log:为了显示mybatis运行SQL语句
     logging.level.com.study=debug

#### 3.9.4 创建实体类entity ####

*  **User**

package com.study.entity;
     
     import org.springframework.security.core.GrantedAuthority;
     import org.springframework.security.core.authority.SimpleGrantedAuthority;
     import org.springframework.security.core.userdetails.UserDetails;
     
     import java.util.*;
     
     /**
      * @ClassName User
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/7 15:16
      * @Version 1.0
      */
     public class User implements UserDetails {
         private Integer id;
         private String username;
         private String password;
         private Boolean enabled;
         private Boolean accountNonExpired;
         private Boolean accountNonLocked;
         private Boolean credentialsNonExpired;
         private List<Role> roles = new ArrayList<>();//关系属性，用来存储当前用户所有角色信息
     
         //返回权限信息
         @Override
         public Collection<? extends GrantedAuthority> getAuthorities() {
             Set<SimpleGrantedAuthority> authorities = new HashSet<>();
             roles.forEach(role -> {
                 SimpleGrantedAuthority simpleGrantedAuthority = new SimpleGrantedAuthority(role.getName());
                 authorities.add(simpleGrantedAuthority);
             });
             return authorities;
         }
     
         @Override
         public String getPassword() {
             return password;
         }
     
         public void setPassword(String password) {
             this.password = password;
         }
     
         @Override
         public String getUsername() {
             return username;
         }
     
         public void setUsername(String username) {
             this.username = username;
         }
     
         @Override
         public boolean isAccountNonExpired() {
             return accountNonLocked;
         }
     
         @Override
         public boolean isAccountNonLocked() {
             return accountNonLocked;
         }
     
         @Override
         public boolean isCredentialsNonExpired() {
             return credentialsNonExpired;
         }
     
         @Override
         public boolean isEnabled() {
             return enabled;
         }
     
         public Integer getId() {
             return id;
         }
     
         public void setId(Integer id) {
             this.id = id;
         }
     
         public Boolean getEnabled() {
             return enabled;
         }
     
         public void setEnabled(Boolean enabled) {
             this.enabled = enabled;
         }
     
         public Boolean getAccountNonExpired() {
             return accountNonExpired;
         }
     
         public void setAccountNonExpired(Boolean accountNonExpired) {
             this.accountNonExpired = accountNonExpired;
         }
     
         public Boolean getAccountNonLocked() {
             return accountNonLocked;
         }
     
         public void setAccountNonLocked(Boolean accountNonLocked) {
             this.accountNonLocked = accountNonLocked;
         }
     
         public Boolean getCredentialsNonExpired() {
             return credentialsNonExpired;
         }
     
         public void setCredentialsNonExpired(Boolean credentialsNonExpired) {
             this.credentialsNonExpired = credentialsNonExpired;
         }
     
         public List<Role> getRoles() {
             return roles;
         }
     
         public void setRoles(List<Role> roles) {
             this.roles = roles;
         }
     }

*  **Role**

package com.study.entity;
     
     /**
      * @ClassName Role
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/7 15:17
      * @Version 1.0
      */
     public class Role {
         private Integer id;
         private String name;
         private String nameZh;
     
         public Integer getId() {
             return id;
         }
     
         public void setId(Integer id) {
             this.id = id;
         }
     
         public String getName() {
             return name;
         }
     
         public void setName(String name) {
             this.name = name;
         }
     
         public String getNameZh() {
             return nameZh;
         }
     
         public void setNameZh(String nameZh) {
             this.nameZh = nameZh;
         }
     }

#### 3.9.5 创建UserDao ####

package com.study.dao;
     
     import com.study.entity.Role;
     import com.study.entity.User;
     import org.apache.ibatis.annotations.Mapper;
     
     import java.util.List;
     
     /**
      * @ClassName UserDao
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/7 15:19
      * @Version 1.0
      */
     @Mapper
     public interface UserDao {
         /**
          * 根据用户名查找用户
          *
          * @param username
          * @return
          */
         User loadUserByUsername(String username);
     
         /**
          * 根据用户id查询一个角色，注意一个用户可能不止一种角色
          *
          * @param uid
          * @return
          */
         List<Role> getRolesByUid(Integer uid);
     }

#### 3.9.6 创建UserDAOMapper.xml ####

<?xml version="1.0" encoding="UTF-8"?>
     <!DOCTYPE mapper
             PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
     
     <mapper namespace="com.study.dao.UserDao">
         
         <select id="loadUserByUsername" resultType="User">
             select id,
                    username,
                    password,
                    enabled,
                    accountNonExpired,
                    accountNonLocked,
                    credentialsNonExpired
             from user
             where username = #{username}
         </select>
     
         
         <select id="getRolesByUid" resultType="Role">
             select r.id,
                    r.name,
                    r.name_zh nameZh
             from role r,
                  user_role ur
             where r.id = ur.rid
               and ur.uid = #{uid}
         </select>
     </mapper>

#### 3.9.7 创建MyUserDetailsService ####

package com.study.service;
     
     import com.study.dao.UserDao;
     import com.study.entity.User;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.security.core.userdetails.UserDetails;
     import org.springframework.security.core.userdetails.UserDetailsService;
     import org.springframework.security.core.userdetails.UsernameNotFoundException;
     import org.springframework.stereotype.Service;
     import org.springframework.util.ObjectUtils;
     
     /**
      * @ClassName MyUserDetailsService
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/7 15:15
      * @Version 1.0
      */
     @Service
     public class MyUserDetailsService implements UserDetailsService {
         private final UserDao userDao;
     
         @Autowired
         public MyUserDetailsService(UserDao userDao) {
             this.userDao = userDao;
         }
     
         @Override
         public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
             User user = userDao.loadUserByUsername(username);
             if (ObjectUtils.isEmpty(user))
                 throw new UsernameNotFoundException("用户不存在");
             user.setRoles(userDao.getRolesByUid(user.getId()));
             return user;
         }
     }

#### 3.9.8 编写html ####

*  **login.html**

<!DOCTYPE html>
     <html lang="en" xmlns:th="http://www.thymeleaf.org">
     <head>
         <meta charset="UTF-8">
         <title>登录页面</title>
     </head>
     <body>
     <h1>用户登录</h1>
     <form method="post" th:action="@{/doLogin}">
         用户名：<input name="uname" type="text"><br>
         密码：<input name="pwd" type="password"><br>
         <input type="submit" value="登录">
     </form>
     <h2>
         
         <div th:text="${session.SPRING_SECURITY_LAST_EXCEPTION}"></div>
     </h2>
     </body>
     </html>

*  **index.html**

<!DOCTYPE html>
     <html lang="en" xmlns:sec="http://www.thymeleaf.org/extras/spring-security"
           xmlns:th="https://www.thymeleaf.org">
     <head>
         <meta charset="UTF-8">
         <title>系统主页</title>
     </head>
     <body>
     <h1>欢迎<span sec:authentication="principal.username"></span>，进入我的系统！</h1>
     <h3>用户详细信息如下：</h3>
     <ul>
         <li sec:authentication="principal.username"></li>
         <li sec:authentication="principal.authorities"></li>
         <li sec:authentication="principal.accountNonExpired"></li>
         <li sec:authentication="principal.accountNonLocked"></li>
         <li sec:authentication="principal.credentialsNonExpired"></li>
     </ul>
     <br>
     <a th:href="@{/logout}">退出登录</a>
     </body>
     </html>

#### 3.9.9 编写MvcConfigurer ####

package com.study.config;
     
     import org.springframework.context.annotation.Configuration;
     import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
     import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
     
     /**
      * @ClassName MvcConfigurer
      * @Description 对SpringMVC进行自定义配置
      * @Author Jiangnan Cui
      * @Date 2022/8/7 14:20
      * @Version 1.0
      */
     @Configuration
     public class MvcConfigurer implements WebMvcConfigurer {
     
         @Override
         public void addViewControllers(ViewControllerRegistry registry) {
             //addViewController: forward跳转
             registry.addViewController("/login.html").setViewName("login");
             registry.addViewController("/index.html").setViewName("index");
         }
     }

#### 3.9.10 编写SecurityConfigurer ####

package com.study.config;
     
     import com.study.service.MyUserDetailsService;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.context.annotation.Configuration;
     import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
     import org.springframework.security.config.annotation.web.builders.HttpSecurity;
     import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
     
     /**
      * @ClassName SecurityConfiger
      * @Description 自定义security相关配置
      * @Author Jiangnan Cui
      * @Date 2022/8/7 14:35
      * @Version 1.0
      */
     @Configuration
     public class SecurityConfigurer extends WebSecurityConfigurerAdapter {
         //    @Bean
     //    public UserDetailsService userDetailsService() {
     //        InMemoryUserDetailsManager userDetailsManager = new InMemoryUserDetailsManager();
     //        userDetailsManager.createUser(User.withUsername("root").password("{noop}123456").roles("admin").build());
     //        return userDetailsManager;
     //    }
         @Autowired
         private MyUserDetailsService myUserDetailsService;
     
         @Override
         protected void configure(AuthenticationManagerBuilder auth) throws Exception {
             auth.userDetailsService(myUserDetailsService);
         }
     
         @Override
         protected void configure(HttpSecurity http) throws Exception {
             http.authorizeRequests()
                     .mvcMatchers("/login.html").permitAll()
                     .anyRequest().authenticated()
                     .and()
                     .formLogin()
                     .loginPage("/login.html") //指定自定义登录页面
                     .loginProcessingUrl("/doLogin")
                     .usernameParameter("uname")
                     .passwordParameter("pwd")
                     .defaultSuccessUrl("/index.html", true)
                     .failureUrl("/login.html")
                     .and()
                     .logout()
                     .logoutUrl("/logout")
                     .logoutSuccessUrl("/login.html")
                     .and()
                     .csrf().disable();
         }
     }

#### 3.9.11 启动服务测试 ####

**（1）登录数据库中含有的用户时，登录成功后显示认证信息：**

![3b12c2ca7f1240f49b0ea6efe5b559b3.png][]

**（2）登录数据库中不含有的用户时，认证后显示错误信息：**

![24a37e97f6af4f868a5d4cf25842ae23.png][]

#### 3.9.12 最终项目目录结构 ####

![4b00795756f74d86b3c138c3d6d013af.png][]

### 3.10 前后端分离开发认证总结案例 ###

**配套视频：**[28.前后端分离认证总结案例(一)\_哔哩哔哩\_bilibili][28._bilibili]

![a918c5f7daf44846add720edc3b09c1a.png][]

#### 3.10.1 新建项目 ####

**新建module：spring-security-04split，勾选Spring Web，创建项目（注意：此处SpringBoot使用的是2.6.2版本），启动服务，查看服务是否能够正常启动！**

#### 3.10.2 新建Controller进行测试 ####

package com.study.controller;
     
     import org.springframework.web.bind.annotation.GetMapping;
     import org.springframework.web.bind.annotation.RestController;
     
     /**
      * @ClassName TestController
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/9 16:11
      * @Version 1.0
      */
     @RestController
     public class TestController {
         @GetMapping("/test")
         public String test() {
             System.out.println("test is ok!");
             return "Test is Ok!";
         }
     }

**启动服务，浏览器访问：[http://localhost:8080/test][http_localhost_8080_test]，浏览器输出：Test is Ok!"，IDEA控制台输出：test is ok!，表示项目创建成功！**

#### 3.10.3 pom.xml引入依赖 ####

<dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-security</artifactId>
     </dependency>

**刷新maven，重启启动服务，浏览器再次访问：[http://localhost:8080/test][http_localhost_8080_test]，此时需要进行登录认证，用户名为：user，密码为引入SpringSecurity框架后IDEA控制台产生的随机密码，输入正确的用户名和密码登录成功后，浏览器输出：Test is Ok!"，IDEA控制台输出：test is ok!，表示项目创建成功！**

#### 3.10.4 编写SpringSecurity配置类 ####

#### 3.10.5 编写前后端分离认证Filter ####

**在进行前后端分离认证时，后端接收到的是前端发送过来的post形式的json数据，此时需要在json格式中获取用于登录的用户名和密码，而SpringSecurity中用于对用户名和密码进行拦截的过滤器为UsernamePasswordAuthenticationFilter，此时需要对此Filter进行覆盖，重写attemptAuthentication()方法后得到用户名和密码，从而进行认证。**

package com.study.config;
     
     import com.fasterxml.jackson.databind.ObjectMapper;
     import org.springframework.http.MediaType;
     import org.springframework.security.authentication.AuthenticationServiceException;
     import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
     import org.springframework.security.core.Authentication;
     import org.springframework.security.core.AuthenticationException;
     import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
     
     import javax.servlet.http.HttpServletRequest;
     import javax.servlet.http.HttpServletResponse;
     import java.io.IOException;
     import java.util.Map;
     
     /**
      * @ClassName LoginFilter
      * @Description 自定义前后端分离Filter
      * @Author Jiangnan Cui
      * @Date 2022/8/9 17:42
      * @Version 1.0
      */
     public class LoginFilter extends UsernamePasswordAuthenticationFilter {
         @Override
         public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {
             System.out.println("========================================");
             //1.判断是否是 post 方式请求
             if (!request.getMethod().equals("POST")) {
                 throw new AuthenticationServiceException("Authentication method not supported: " + request.getMethod());
             }
             //2.判断是否是 json 格式请求类型
             if (request.getContentType().equalsIgnoreCase(MediaType.APPLICATION_JSON_VALUE)) {
                 //3.从 json 数据中获取用户输入用户名和密码进行认证 {"uname":"xxx","password":"xxx"}
                 try {
                     Map<String, String> userInfo = new ObjectMapper().readValue(request.getInputStream(), Map.class);
                     String username = userInfo.get(getUsernameParameter());
                     String password = userInfo.get(getPasswordParameter());
                     System.out.println("用户名: " + username + " 密码: " + password);
                     UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(username, password);
                     setDetails(request, authRequest);
                     return this.getAuthenticationManager().authenticate(authRequest);
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
             }
             return super.attemptAuthentication(request, response);
         }
     }

#### 3.10.6 完善SpringSecurity配置类 ####

package com.study.config;
     
     import com.fasterxml.jackson.databind.ObjectMapper;
     import org.springframework.context.annotation.Bean;
     import org.springframework.context.annotation.Configuration;
     import org.springframework.http.HttpMethod;
     import org.springframework.http.HttpStatus;
     import org.springframework.security.authentication.AuthenticationManager;
     import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
     import org.springframework.security.config.annotation.web.builders.HttpSecurity;
     import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
     import org.springframework.security.core.Authentication;
     import org.springframework.security.core.AuthenticationException;
     import org.springframework.security.core.userdetails.User;
     import org.springframework.security.core.userdetails.UserDetailsService;
     import org.springframework.security.provisioning.InMemoryUserDetailsManager;
     import org.springframework.security.web.AuthenticationEntryPoint;
     import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
     import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
     import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
     import org.springframework.security.web.util.matcher.OrRequestMatcher;
     
     import javax.servlet.ServletException;
     import javax.servlet.http.HttpServletRequest;
     import javax.servlet.http.HttpServletResponse;
     import java.io.IOException;
     import java.util.HashMap;
     import java.util.Map;
     
     /**
      * @ClassName SecurityConfig
      * @Description SpringSecurity配置类
      * @Author Jiangnan Cui
      * @Date 2022/8/9 17:36
      * @Version 1.0
      */
     @Configuration
     public class SecurityConfig extends WebSecurityConfigurerAdapter {
         //自定义AuthenticationManager
         @Bean
         public UserDetailsService userDetailsService() {
             InMemoryUserDetailsManager inMemoryUserDetailsManager = new InMemoryUserDetailsManager();
             inMemoryUserDetailsManager.createUser(
                     User.withUsername("root").password("{noop}123456").roles("admin").build());
             return inMemoryUserDetailsManager;
         }
     
         //覆盖默认的AuthenticationManager
         @Override
         protected void configure(AuthenticationManagerBuilder auth) throws Exception {
             auth.userDetailsService(userDetailsService());
         }
     
         //从工厂中暴露出来
         @Override
         @Bean
         public AuthenticationManager authenticationManagerBean() throws Exception {
             return super.authenticationManagerBean();
         }
     
         //把自定义Filter交给工厂，用以替换UsernamePasswordAuthenticationFilter
         @Bean
         public LoginFilter loginFilter() throws Exception {
             LoginFilter loginFilter = new LoginFilter();
             loginFilter.setFilterProcessesUrl("/doLogin");//指定认证url
             loginFilter.setUsernameParameter("uname");//指定接收json用户名key
             loginFilter.setPasswordParameter("pwd");//指定接收json密码key
             loginFilter.setAuthenticationManager(authenticationManagerBean());
             //认证成功处理
             loginFilter.setAuthenticationSuccessHandler(new AuthenticationSuccessHandler() {
                 @Override
                 public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
                     Map<String, Object> result = new HashMap<String, Object>();
                     result.put("msg", "登录成功");//打印登录成功信息
                     //result.put("status", 200);//打印状态码   此处改为setStatus
                     result.put("用户信息", authentication.getPrincipal());//获得身份信息
                     result.put("authentication", authentication);//打印认证信息
                     response.setContentType("application/json;charset=UTF-8");//设置响应类型
                     response.setStatus(HttpStatus.OK.value());//设置登录成功之后的状态
                     String s = new ObjectMapper().writeValueAsString(result);//json格式转字符串
                     response.getWriter().println(s);//打印json格式数据
                 }
             });
             //认证失败处理
             loginFilter.setAuthenticationFailureHandler((request, response, exception) -> {
                 Map<String, Object> result = new HashMap<String, Object>();
                 result.put("msg", "登录失败：" + exception.getMessage());
                 //result.put("status", 500);//打印状态码   此处改为setStatus
                 response.setContentType("application/json;charset=UTF-8");
                 response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value());//设置登录失败之后的状态
                 String s = new ObjectMapper().writeValueAsString(result);
                 response.getWriter().println(s);
             });
             return loginFilter;
         }
     
         @Override
         protected void configure(HttpSecurity http) throws Exception {
             http.authorizeRequests()
                     .anyRequest().authenticated()//所有请求必须认证
                     .and()
                     .formLogin()//form表单认证时默认采用UsernamePasswordAuthenticationFilter进行拦截
                     // 此处使用LoginFilter进行替换
                     .and()
                     .exceptionHandling()
                     .authenticationEntryPoint(new AuthenticationEntryPoint() {
                         @Override
                         public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException, ServletException {
                             response.setContentType("application/json;charset=UTF-8");
                             response.setStatus(HttpStatus.UNAUTHORIZED.value());
                             response.getWriter().println("请认证之后再去处理！");
                         }
                     })
                     .and()
                     .logout()
                     //.logoutUrl("/logout")
                     .logoutRequestMatcher(new OrRequestMatcher(
                             new AntPathRequestMatcher("/logout", HttpMethod.DELETE.name()),
                             new AntPathRequestMatcher("/logout", HttpMethod.GET.name())
                     ))
                     .logoutSuccessHandler((request, response, authentication) -> {
                         Map<String, Object> result = new HashMap<String, Object>();
                         result.put("msg", "注销成功");//打印登录成功信息
                         //result.put("status", 200);//打印状态码   此处改为setStatus
                         result.put("用户信息", authentication.getPrincipal());//获得身份信息
                         result.put("authentication", authentication);//打印认证信息
                         response.setContentType("application/json;charset=UTF-8");//设置响应类型
                         response.setStatus(HttpStatus.OK.value());//设置登录成功之后的状态
                         String s = new ObjectMapper().writeValueAsString(result);//json格式转字符串
                         response.getWriter().println(s);//打印json格式数据
                     })
                     .and()
                     .csrf().disable();
             /**
              * addFilterAt:用某个filter替换掉过滤器链中的某个filter
              * addFilterBefore():将某个过滤器放在过滤器链中某个filter之前
              * addFilterAfter():将某个过滤器放在过滤器链中某个filter之后
              */
             http.addFilterAt(loginFilter(), UsernamePasswordAuthenticationFilter.class);
         }
     }

#### 3.10.7 启动服务测试 ####

**启动服务，打开Postman进行测试：**

**（1）GET [http://localhost:8080/test][http_localhost_8080_test]**

![ee3e048d0e314e57a1f4bb909666c0a5.png][]

**（2）POST [http://localhost:8080/doLogin][http_localhost_8080_doLogin]**

![a53debfdee824bad898ac215e82dc166.png][]

**（3）GET或DELETE [http://localhost:8080/logout][http_localhost_8080_logout]**

![db5cecc7ab684dd9bc6e723549206452.png][]

#### 3.10.8 引入数据源+整合mybatis ####

**配套视频：**[29.前后端分离认证总结案例(二)\_哔哩哔哩\_bilibili][29._bilibili]

*  **pom.xml引入依赖**

<dependency>
         <groupId>com.alibaba</groupId>
         <artifactId>druid</artifactId>
         <version>1.2.7</version>
     </dependency>
     
     
     <dependency>
         <groupId>mysql</groupId>
         <artifactId>mysql-connector-java</artifactId>
         <version>5.1.38</version>
     </dependency>
     
     
     <dependency>
         <groupId>org.mybatis.spring.boot</groupId>
         <artifactId>mybatis-spring-boot-starter</artifactId>
         <version>2.2.0</version>
     </dependency>

**刷新maven！**

*  **application.properties添加配置**

# datasource：类型、驱动名、用户名、密码
     spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
     spring.datasource.driver-class-name=com.mysql.jdbc.Driver
     spring.datasource.url=jdbc:mysql://localhost:3306/security?characterEncoding=UTF-8&useSSL=false
     spring.datasource.username=root
     spring.datasource.password=root
     # mybatis配置mapper文件的位置和别名设置
     # 注意mapper目录（包）新建时必须使用"/"，而不是.
     mybatis.mapper-locations=classpath:com/study/mapper/*.xml
     mybatis.type-aliases-package=com.study.entity
     # log:为了显示mybatis运行SQL语句
     logging.level.com.study=debug

*  **创建实体类entity**
    
     *  **User**
        
             package com.study.entity;
             
             import org.springframework.security.core.GrantedAuthority;
             import org.springframework.security.core.authority.SimpleGrantedAuthority;
             import org.springframework.security.core.userdetails.UserDetails;
             
             import java.util.*;
             
             /**
              * @ClassName User
              * @Description TODO
              * @Author Jiangnan Cui
              * @Date 2022/8/10 0:25
              * @Version 1.0
              */
             public class User implements UserDetails {
                 private Integer id;
                 private String username;
                 private String password;
                 private Boolean enabled;
                 private Boolean accountNonExpired;
                 private Boolean accountNonLocked;
                 private Boolean credentialsNonExpired;
                 private List<Role> roles = new ArrayList<>();//关系属性，用来存储当前用户所有角色信息
             
                 //返回权限信息
                 @Override
                 public Collection<? extends GrantedAuthority> getAuthorities() {
                     Set<SimpleGrantedAuthority> authorities = new HashSet<>();
                     roles.forEach(role -> {
                         SimpleGrantedAuthority simpleGrantedAuthority = new SimpleGrantedAuthority(role.getName());
                         authorities.add(simpleGrantedAuthority);
                     });
                     return authorities;
                 }
             
                 @Override
                 public String getPassword() {
                     return password;
                 }
             
                 public void setPassword(String password) {
                     this.password = password;
                 }
             
                 @Override
                 public String getUsername() {
                     return username;
                 }
             
                 public void setUsername(String username) {
                     this.username = username;
                 }
             
                 @Override
                 public boolean isAccountNonExpired() {
                     return accountNonLocked;
                 }
             
                 @Override
                 public boolean isAccountNonLocked() {
                     return accountNonLocked;
                 }
             
                 @Override
                 public boolean isCredentialsNonExpired() {
                     return credentialsNonExpired;
                 }
             
                 @Override
                 public boolean isEnabled() {
                     return enabled;
                 }
             
                 public Integer getId() {
                     return id;
                 }
             
                 public void setId(Integer id) {
                     this.id = id;
                 }
             
                 public Boolean getEnabled() {
                     return enabled;
                 }
             
                 public void setEnabled(Boolean enabled) {
                     this.enabled = enabled;
                 }
             
                 public Boolean getAccountNonExpired() {
                     return accountNonExpired;
                 }
             
                 public void setAccountNonExpired(Boolean accountNonExpired) {
                     this.accountNonExpired = accountNonExpired;
                 }
             
                 public Boolean getAccountNonLocked() {
                     return accountNonLocked;
                 }
             
                 public void setAccountNonLocked(Boolean accountNonLocked) {
                     this.accountNonLocked = accountNonLocked;
                 }
             
                 public Boolean getCredentialsNonExpired() {
                     return credentialsNonExpired;
                 }
             
                 public void setCredentialsNonExpired(Boolean credentialsNonExpired) {
                     this.credentialsNonExpired = credentialsNonExpired;
                 }
             
                 public List<Role> getRoles() {
                     return roles;
                 }
             
                 public void setRoles(List<Role> roles) {
                     this.roles = roles;
                 }
             }
     *  **Role**
        
             package com.study.entity;
             
             /**
              * @ClassName Role
              * @Description TODO
              * @Author Jiangnan Cui
              * @Date 2022/8/10 0:25
              * @Version 1.0
              */
             public class Role {
                 private Integer id;
                 private String name;
                 private String nameZh;
             
                 public Integer getId() {
                     return id;
                 }
             
                 public void setId(Integer id) {
                     this.id = id;
                 }
             
                 public String getName() {
                     return name;
                 }
             
                 public void setName(String name) {
                     this.name = name;
                 }
             
                 public String getNameZh() {
                     return nameZh;
                 }
             
                 public void setNameZh(String nameZh) {
                     this.nameZh = nameZh;
                 }
             }

*  **创建UserDao**

package com.study.dao;
     
     import com.study.entity.Role;
     import com.study.entity.User;
     import org.apache.ibatis.annotations.Mapper;
     
     import java.util.List;
     
     /**
      * @ClassName UserDao
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/10 0:27
      * @Version 1.0
      */
     @Mapper
     public interface UserDao {
         /**
          * 根据用户名查找用户
          *
          * @param username
          * @return
          */
         User loadUserByUsername(String username);
     
         /**
          * 根据用户id查询一个角色，注意一个用户可能不止一种角色
          *
          * @param uid
          * @return
          */
         List<Role> getRolesByUid(Integer uid);
     }

*  **创建UserDaoMapper.xml**

*  **创建MyUserDetailsService**

package com.study.service;
     
     import com.study.dao.UserDao;
     import com.study.entity.User;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.security.core.userdetails.UserDetails;
     import org.springframework.security.core.userdetails.UserDetailsService;
     import org.springframework.security.core.userdetails.UsernameNotFoundException;
     import org.springframework.stereotype.Service;
     import org.springframework.util.ObjectUtils;
     
     /**
      * @ClassName MyUserDetailsService
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/10 0:26
      * @Version 1.0
      */
     @Service
     public class MyUserDetailsService implements UserDetailsService {
         private final UserDao userDao;
     
         @Autowired
         public MyUserDetailsService(UserDao userDao) {
             this.userDao = userDao;
         }
     
         @Override
         public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
             User user = userDao.loadUserByUsername(username);
             if (ObjectUtils.isEmpty(user))
                 throw new UsernameNotFoundException("用户不存在");
             user.setRoles(userDao.getRolesByUid(user.getId()));
             return user;
         }
     }

*  **SecurityConfig修改数据源**

package com.study.config;
     
     import com.fasterxml.jackson.databind.ObjectMapper;
     import com.study.service.MyUserDetailsService;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.context.annotation.Bean;
     import org.springframework.context.annotation.Configuration;
     import org.springframework.http.HttpMethod;
     import org.springframework.http.HttpStatus;
     import org.springframework.security.authentication.AuthenticationManager;
     import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
     import org.springframework.security.config.annotation.web.builders.HttpSecurity;
     import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
     import org.springframework.security.core.Authentication;
     import org.springframework.security.core.AuthenticationException;
     import org.springframework.security.web.AuthenticationEntryPoint;
     import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
     import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
     import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
     import org.springframework.security.web.util.matcher.OrRequestMatcher;
     
     import javax.servlet.ServletException;
     import javax.servlet.http.HttpServletRequest;
     import javax.servlet.http.HttpServletResponse;
     import java.io.IOException;
     import java.util.HashMap;
     import java.util.Map;
     
     /**
      * @ClassName SecurityConfig
      * @Description SpringSecurity配置类
      * @Author Jiangnan Cui
      * @Date 2022/8/9 17:36
      * @Version 1.0
      */
     @Configuration
     public class SecurityConfig extends WebSecurityConfigurerAdapter {
         //自定义AuthenticationManager
     //    @Bean
     //    public UserDetailsService userDetailsService() {
     //        InMemoryUserDetailsManager inMemoryUserDetailsManager = new InMemoryUserDetailsManager();
     //        inMemoryUserDetailsManager.createUser(
     //                User.withUsername("root").password("{noop}123456").roles("admin").build());
     //        return inMemoryUserDetailsManager;
     //    }
     
         //引入数据源
         private MyUserDetailsService myUserDetailsService;
     
         @Autowired
         public SecurityConfig(MyUserDetailsService myUserDetailsService) {
             this.myUserDetailsService = myUserDetailsService;
         }
     
         //覆盖默认的AuthenticationManager
         @Override
         protected void configure(AuthenticationManagerBuilder auth) throws Exception {
             //auth.userDetailsService(userDetailsService());
             auth.userDetailsService(myUserDetailsService);
         }
     
         //从工厂中暴露出来
         @Override
         @Bean
         public AuthenticationManager authenticationManagerBean() throws Exception {
             return super.authenticationManagerBean();
         }
     
         //把自定义Filter交给工厂，用以替换UsernamePasswordAuthenticationFilter
         @Bean
         public LoginFilter loginFilter() throws Exception {
             LoginFilter loginFilter = new LoginFilter();
             loginFilter.setFilterProcessesUrl("/doLogin");//指定认证url
             loginFilter.setUsernameParameter("uname");//指定接收json用户名key
             loginFilter.setPasswordParameter("pwd");//指定接收json密码key
             loginFilter.setAuthenticationManager(authenticationManagerBean());
             //认证成功处理
             loginFilter.setAuthenticationSuccessHandler(new AuthenticationSuccessHandler() {
                 @Override
                 public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
                     Map<String, Object> result = new HashMap<String, Object>();
                     result.put("msg", "登录成功");//打印登录成功信息
                     //result.put("status", 200);//打印状态码   此处改为setStatus
                     result.put("用户信息", authentication.getPrincipal());//获得身份信息
                     result.put("authentication", authentication);//打印认证信息
                     response.setContentType("application/json;charset=UTF-8");//设置响应类型
                     response.setStatus(HttpStatus.OK.value());//设置登录成功之后的状态
                     String s = new ObjectMapper().writeValueAsString(result);//json格式转字符串
                     response.getWriter().println(s);//打印json格式数据
                 }
             });
             //认证失败处理
             loginFilter.setAuthenticationFailureHandler((request, response, exception) -> {
                 Map<String, Object> result = new HashMap<String, Object>();
                 result.put("msg", "登录失败：" + exception.getMessage());
                 //result.put("status", 500);//打印状态码   此处改为setStatus
                 response.setContentType("application/json;charset=UTF-8");
                 response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value());//设置登录失败之后的状态
                 String s = new ObjectMapper().writeValueAsString(result);
                 response.getWriter().println(s);
             });
             return loginFilter;
         }
     
         @Override
         protected void configure(HttpSecurity http) throws Exception {
             http.authorizeRequests()
                     .anyRequest().authenticated()//所有请求必须认证
                     .and()
                     .formLogin()//form表单认证时默认采用UsernamePasswordAuthenticationFilter进行拦截
                     // 此处使用LoginFilter进行替换
                     .and()
                     .exceptionHandling()
                     .authenticationEntryPoint(new AuthenticationEntryPoint() {
                         @Override
                         public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException, ServletException {
                             response.setContentType("application/json;charset=UTF-8");
                             response.setStatus(HttpStatus.UNAUTHORIZED.value());
                             response.getWriter().println("请认证之后再去处理！");
                         }
                     })
                     .and()
                     .logout()
                     //.logoutUrl("/logout")
                     .logoutRequestMatcher(new OrRequestMatcher(
                             new AntPathRequestMatcher("/logout", HttpMethod.DELETE.name()),
                             new AntPathRequestMatcher("/logout", HttpMethod.GET.name())
                     ))
                     .logoutSuccessHandler((request, response, authentication) -> {
                         Map<String, Object> result = new HashMap<String, Object>();
                         result.put("msg", "注销成功");//打印登录成功信息
                         //result.put("status", 200);//打印状态码   此处改为setStatus
                         result.put("用户信息", authentication.getPrincipal());//获得身份信息
                         result.put("authentication", authentication);//打印认证信息
                         response.setContentType("application/json;charset=UTF-8");//设置响应类型
                         response.setStatus(HttpStatus.OK.value());//设置登录成功之后的状态
                         String s = new ObjectMapper().writeValueAsString(result);//json格式转字符串
                         response.getWriter().println(s);//打印json格式数据
                     })
                     .and()
                     .csrf().disable();
             /**
              * addFilterAt:用某个filter替换掉过滤器链中的某个filter
              * addFilterBefore():将某个过滤器放在过滤器链中某个filter之前
              * addFilterAfter():将某个过滤器放在过滤器链中某个filter之后
              */
             http.addFilterAt(loginFilter(), UsernamePasswordAuthenticationFilter.class);
         }
     }

#### 3.10.9 启动服务测试 ####

**启动服务，打开Postman进行测试：**

**（1）GET [http://localhost:8080/test][http_localhost_8080_test] 登录失败**

**（2）POST [http://localhost:8080/doLogin][http_localhost_8080_doLogin]**

**uname：root，pwd：123**

**uname：blr，pwd：123**

**uname：admin，pwd：123**

**均可成功登录**

**（3）GET或DELETE [http://localhost:8080/logout][http_localhost_8080_logout] 成功注销**

#### 3.10.10 最终项目结构目录 ####

![73474329d58f4479b620f0220e82d414.png][]

### 3.11 传统Web开发认证验证码 ###

**配套视频：**[30.传统 web 开发之添加验证码(一)\_哔哩哔哩\_bilibili][30._ web _bilibili]

**配套视频：**[31.传统 web 开发之添加验证码(二)\_哔哩哔哩\_bilibili][31._ web _bilibili]

![1fa00cbbd8d04a43bb36450fb8e72bb2.png][]

#### 3.11.1 新建项目 ####

**新建module：spring-security-05，勾选Spring Web，创建项目（注意：此处SpringBoot使用的是2.6.2版本），启动服务，查看服务是否能够正常启动！**

#### 3.11.2 pom.xml引入依赖 ####

<dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-thymeleaf</artifactId>
     </dependency>
     
     
     <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-security</artifactId>
     </dependency>

**刷新Maven！**

#### 3.11.3 application.properties添加配置 ####

spring.thymeleaf.cache=false
     spring.thymeleaf.prefix=classpath:/templates/
     spring.thymeleaf.suffix=.html

#### 3.11.4 创建html页面 ####

*  **login.html**

*  **index.html**

<!DOCTYPE html>
     <html lang="en">
     <head>
         <meta charset="UTF-8">
         <title>系统主页</title>
     </head>
     <body>
     <h1>欢迎来到小崔的主页！</h1>
     </body>
     </html>

#### 3.11.5 配置MvcConfigurer ####

package com.study.config;
     
     import org.springframework.context.annotation.Configuration;
     import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
     import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
     
     /**
      * @ClassName MvcConfigurer
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 12:14
      * @Version 1.0
      */
     @Configuration
     public class MvcConfigurer implements WebMvcConfigurer {
         @Override
         public void addViewControllers(ViewControllerRegistry registry) {
             registry.addViewController("/index.html").setViewName("index");
             registry.addViewController("/login.html").setViewName("login");
         }
     }

#### 3.11.6 配置Security ####

package com.study.config;
     
     import org.springframework.context.annotation.Configuration;
     import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
     import org.springframework.security.config.annotation.web.builders.HttpSecurity;
     import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
     import org.springframework.security.core.userdetails.User;
     import org.springframework.security.core.userdetails.UserDetailsService;
     import org.springframework.security.provisioning.InMemoryUserDetailsManager;
     
     /**
      * @ClassName SecurityConfigurer
      * @Description 配置Security
      * @Author Jiangnan Cui
      * @Date 2022/8/11 12:26
      * @Version 1.0
      */
     @Configuration
     public class SecurityConfigurer extends WebSecurityConfigurerAdapter {
         public UserDetailsService userDetailsService() {
             InMemoryUserDetailsManager inMemoryUserDetailsManager = new InMemoryUserDetailsManager();
             inMemoryUserDetailsManager.createUser(
                     User.withUsername("root").
                             password("{noop}123456").
                             roles("admin").
                             build());
             return inMemoryUserDetailsManager;
         }
     
         @Override
         protected void configure(AuthenticationManagerBuilder auth) throws Exception {
             auth.userDetailsService(userDetailsService());
         }
     
         @Override
         protected void configure(HttpSecurity http) throws Exception {
             http.authorizeRequests()
                     .mvcMatchers("/login.html").permitAll()
                     .anyRequest().authenticated()
                     .and()
                     .formLogin()
                     .loginPage("/login.html")
                     .loginProcessingUrl("/doLogin")
                     .usernameParameter("uname")
                     .passwordParameter("pwd")
                     .defaultSuccessUrl("/index.html", true)
                     .failureUrl("/login.html")
                     .and()
                     .logout()
                     .logoutUrl("/logout")
                     .logoutSuccessUrl("/login.html")
                     .and()
                     .csrf().disable();
         }
     }

#### 3.11.7 启动服务测试 ####

**启动服务，浏览器访问：[http://localhost:8080/index.html][http_localhost_8080_index.html]，此时需要进行登录认证，用户名为root，密码为123456，输入后正常访问index.html，表示测试成功！注销登录访问路径：[http://localhost:8080/login.html][http_localhost_8080_login.html]。**

#### 3.11.8 配置验证码 ####

*  **pom.xml引入依赖kaptcha**

<dependency>
         <groupId>com.github.penggle</groupId>
         <artifactId>kaptcha</artifactId>
         <version>2.3.2</version>
     </dependency>

*  **添加验证码配置**

package com.study.config;
     
     import com.google.code.kaptcha.Producer;
     import com.google.code.kaptcha.impl.DefaultKaptcha;
     import com.google.code.kaptcha.util.Config;
     import org.springframework.context.annotation.Bean;
     import org.springframework.context.annotation.Configuration;
     
     import java.util.Properties;
     
     /**
      * @ClassName KaptchaConfigurer
      * @Description 生成验证码
      * @Author Jiangnan Cui
      * @Date 2022/8/11 16:16
      * @Version 1.0
      */
     @Configuration
     public class KaptchaConfigurer {
         @Bean
         public Producer kaptcha() {
             Properties properties = new Properties();
             //1.验证码宽度
             properties.setProperty("kaptcha.image.width", "150");
             //2.验证码高度
             properties.setProperty("kaptcha.image.height", "50");
             //3.验证码字符串
             properties.setProperty("kaptcha.textproducer.char.string", "0123456789");
             //4.验证码长度
             properties.setProperty("kaptcha.textproducer.char.length", "4");
             Config config = new Config(properties);
             DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
             defaultKaptcha.setConfig(config);
             return defaultKaptcha;
         }
     }

#### 3.11.9 在login.html中添加验证码 ####

<!DOCTYPE html>
     <html lang="en" xmlns:th="http://www.thymeleaf.org">
     <head>
         <meta charset="UTF-8">
         <title>登录页面</title>
     </head>
     <body>
     <h1>用户登录</h1>
     <form method="post" th:action="@{/doLogin}">
         用户名：<input name="uname" type="text"><br>
         密码：<input name="pwd" type="password"><br>
         验证码：<input name="kaptcha" type="text"><img th:src="@{/vc.jpg}">
         <input type="submit" value="登录">
     </form>
     </body>
     </html>

**并在SecurityConfigurer对 [http://localhost:8080/vc.jpg][http_localhost_8080_vc.jpg] 请求进行放行。**

#### 3.11.10 生成验证码Controller ####

package com.study.controller;
     
     import com.google.code.kaptcha.Producer;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.stereotype.Controller;
     import org.springframework.web.bind.annotation.RequestMapping;
     
     import javax.imageio.ImageIO;
     import javax.servlet.ServletOutputStream;
     import javax.servlet.http.HttpServletResponse;
     import javax.servlet.http.HttpSession;
     import java.awt.image.BufferedImage;
     import java.io.IOException;
     
     /**
      * @ClassName VerifyCodeController
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 16:20
      * @Version 1.0
      */
     @Controller
     public class VerifyCodeController {
         private final Producer producer;
     
         @Autowired
         public VerifyCodeController(Producer producer) {
             this.producer = producer;
         }
     
         @RequestMapping("/vc.jpg")
         public void verityCode(HttpServletResponse response, HttpSession session) throws IOException {
             //1.生成验证码
             String verifyCode = producer.createText();
             //2.保存到session中
             session.setAttribute("kaptcha", verifyCode);
             //3.生成图片
             BufferedImage bi = producer.createImage(verifyCode);
             //4.设置响应类型，并响应成图片
             response.setContentType("image/png");
             ServletOutputStream os = response.getOutputStream();
             ImageIO.write(bi, "jpg", os);
         }
     }

#### 3.11.11 测试 ####

**启动服务，访问 [http://localhost:8080/vc.jpg][http_localhost_8080_vc.jpg] 可得到随机生成的四位验证码图片：**

![4072eb452eae4e298fce25a779cf7834.png][]

**访问 [http://localhost:8080/vc.jpg][http_localhost_8080_vc.jpg] 可发现登录页出现验证码：**

![e3f56f2b8ec54449acd840f93f8acc34.png][]

#### 3.11.12 自定义filter验证验证码 ####

package com.study.filter;
     
     import com.study.exception.KaptchaNotMatchException;
     import org.springframework.security.authentication.AuthenticationServiceException;
     import org.springframework.security.core.Authentication;
     import org.springframework.security.core.AuthenticationException;
     import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
     import org.springframework.util.ObjectUtils;
     
     import javax.servlet.http.HttpServletRequest;
     import javax.servlet.http.HttpServletResponse;
     
     /**
      * @ClassName KaptchaFilter
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 17:29
      * @Version 1.0
      */
     public class KaptchaFilter extends UsernamePasswordAuthenticationFilter {
         public static final String KAPTCHA_KEY = "kaptcha";
         private String kaptcha = KAPTCHA_KEY;
     
         public String getKaptcha() {
             return kaptcha;
         }
     
         public void setKaptcha(String kaptcha) {
             this.kaptcha = kaptcha;
         }
     
         @Override
         public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {
             //1.判断是否是post方式
             if (request.getMethod().equals("POST")) {
                 throw new AuthenticationServiceException("Authentication method not supported: " + request.getMethod());
             }
             //2.从请求中获取验证码
             String verifyCode = request.getParameter(getKaptcha());
             //与session中的验证码进行比较
             String sessionVerifyCode = (String) request.getSession().getAttribute("kaptcha");
             if (!ObjectUtils.isEmpty(verifyCode) && !ObjectUtils.isEmpty(sessionVerifyCode) && verifyCode.equalsIgnoreCase(sessionVerifyCode)) {
                 return super.attemptAuthentication(request, response);
             }
             //不满足条件时直接抛出异常
             throw new KaptchaNotMatchException("验证码不匹配");
         }
     }

#### 3.11.13 自定义验证码异常类 ####

package com.study.exception;
     import org.springframework.security.core.AuthenticationException;
     
     /**
      * @ClassName KaptchaNotMatchException
      * @Description 自定义验证码认证异常
      * @Author Jiangnan Cui
      * @Date 2022/8/11 17:39
      * @Version 1.0
      */
     public class KaptchaNotMatchException extends AuthenticationException {
     
         public KaptchaNotMatchException(String msg) {
             super(msg);
         }
     
         public KaptchaNotMatchException(String msg, Throwable cause) {
             super(msg, cause);
         }
     }

#### 3.11.14 SecurityConfigurer配置验证码filter ####

package com.study.config;
     
     import com.study.filter.KaptchaFilter;
     import org.springframework.context.annotation.Bean;
     import org.springframework.context.annotation.Configuration;
     import org.springframework.security.authentication.AuthenticationManager;
     import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
     import org.springframework.security.config.annotation.web.builders.HttpSecurity;
     import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
     import org.springframework.security.core.userdetails.User;
     import org.springframework.security.core.userdetails.UserDetailsService;
     import org.springframework.security.provisioning.InMemoryUserDetailsManager;
     import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
     
     /**
      * @ClassName SecurityConfigurer
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 12:26
      * @Version 1.0
      */
     @Configuration
     public class SecurityConfigurer extends WebSecurityConfigurerAdapter {
         
         public UserDetailsService userDetailsService() {
             InMemoryUserDetailsManager inMemoryUserDetailsManager = new InMemoryUserDetailsManager();
             inMemoryUserDetailsManager.createUser(
                     User.withUsername("root").
                             password("{noop}123456").
                             roles("admin").
                             build());
             return inMemoryUserDetailsManager;
         }
     
         @Override
         protected void configure(AuthenticationManagerBuilder auth) throws Exception {
             auth.userDetailsService(userDetailsService());
         }
     
         @Override
         public AuthenticationManager authenticationManagerBean() throws Exception {
             return super.authenticationManagerBean();
         }
     
         @Bean
         public KaptchaFilter kaptchaFilter() throws Exception {
             KaptchaFilter kaptchaFilter = new KaptchaFilter();
             //指定接收验证码请求参数名
             kaptchaFilter.setKaptcha("kaptcha");
             //指定认证管理器
             kaptchaFilter.setAuthenticationManager(authenticationManagerBean());
             //指定认证成功处理
             kaptchaFilter.setAuthenticationSuccessHandler((res, resp, auth) -> {
                 resp.sendRedirect("/index.html");
             });
             //指定认证失败处理
             kaptchaFilter.setAuthenticationFailureHandler((res, resp, auth) -> {
                 resp.sendRedirect("/login.html");
             });
             return kaptchaFilter;
         }
     
         @Override
         protected void configure(HttpSecurity http) throws Exception {
             http.authorizeRequests()
                     .mvcMatchers("/login.html").permitAll()
                     .mvcMatchers("/vc.jpg").permitAll()
                     .anyRequest().authenticated()
                     .and()
                     .formLogin()
                     .loginPage("/login.html")
                     .loginProcessingUrl("/doLogin")
                     .usernameParameter("uname")
                     .passwordParameter("pwd")
     //                .defaultSuccessUrl("/index.html", true)
     //                .failureUrl("/login.html")
                     .and()
                     .logout()
                     .logoutUrl("/logout")
                     .logoutSuccessUrl("/login.html")
                     .and()
                     .csrf().disable();
             http.addFilterAt(kaptchaFilter(), UsernamePasswordAuthenticationFilter.class);
         }
     }

#### 3.11.15 测试 ####

**启动服务，访问 [http://localhost:8080/login.html][http_localhost_8080_login.html] ，输入正确的用户名、密码、验证码后可正常登录，表示测试成功！**

#### 3.11.16 项目最终目录结构 ####

![6d874d9c7e4e4da695d9861bf8ae5bc0.png][]

### 3.12 前后端分离开发 ###

**配套视频：**[32.前后端分离开发之添加验证码\_哔哩哔哩\_bilibili][32._bilibili]

![63663450e47f43a1aff0754b72f5eb1a.png][]

#### 3.12.1 新建项目 ####

**新建module：spring-security-06，勾选Spring Web、Spring Security，创建项目（注意：此处SpringBoot使用的是2.6.2版本），启动服务，查看服务是否能够正常启动！**

#### 3.12.2 pom.xml引入依赖 ####

<dependency>
                 <groupId>com.github.penggle</groupId>
                 <artifactId>kaptcha</artifactId>
                 <version>2.3.2</version>
             </dependency>
     
             
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>druid</artifactId>
                 <version>1.2.7</version>
             </dependency>
     
             
             <dependency>
                 <groupId>mysql</groupId>
                 <artifactId>mysql-connector-java</artifactId>
                 <version>5.1.38</version>
             </dependency>
     
             
             <dependency>
                 <groupId>org.mybatis.spring.boot</groupId>
                 <artifactId>mybatis-spring-boot-starter</artifactId>
                 <version>2.2.0</version>
             </dependency>

**刷新Maven！**

#### 3.12.3 application.properties添加配置 ####

# datasource：类型、驱动名、url、用户名、密码
     spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
     spring.datasource.driver-class-name=com.mysql.jdbc.Driver
     spring.datasource.url=jdbc:mysql://localhost:3306/security?characterEncoding=UTF-8&useSSL=false
     spring.datasource.username=root
     spring.datasource.password=root
     # mybatis配置mapper文件的位置和别名设置
     # 注意mapper目录（包）新建时必须使用"/"，而不是.
     mybatis.mapper-locations=classpath:com/study/mapper/*.xml
     mybatis.type-aliases-package=com.study.entity
     # log:为了显示mybatis运行SQL语句
     logging.level.com.study=debug

#### 3.12.4 创建实体类 ####

*  **User**

package com.study.entity;
     
     import org.springframework.security.core.GrantedAuthority;
     import org.springframework.security.core.authority.SimpleGrantedAuthority;
     import org.springframework.security.core.userdetails.UserDetails;
     
     import java.util.*;
     
     /**
      * @ClassName User
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 22:58
      * @Version 1.0
      */
     public class User implements UserDetails {
         private Integer id;
         private String username;
         private String password;
         private Boolean enabled;
         private Boolean accountNonExpired;
         private Boolean accountNonLocked;
         private Boolean credentialsNonExpired;
         private List<Role> roles = new ArrayList<>();//关系属性，用来存储当前用户所有角色信息
     
         //返回权限信息
         @Override
         public Collection<? extends GrantedAuthority> getAuthorities() {
             Set<SimpleGrantedAuthority> authorities = new HashSet<>();
             roles.forEach(role -> {
                 SimpleGrantedAuthority simpleGrantedAuthority = new SimpleGrantedAuthority(role.getName());
                 authorities.add(simpleGrantedAuthority);
             });
             return authorities;
         }
     
         @Override
         public String getPassword() {
             return password;
         }
     
         public void setPassword(String password) {
             this.password = password;
         }
     
         @Override
         public String getUsername() {
             return username;
         }
     
         public void setUsername(String username) {
             this.username = username;
         }
     
         @Override
         public boolean isAccountNonExpired() {
             return accountNonLocked;
         }
     
         @Override
         public boolean isAccountNonLocked() {
             return accountNonLocked;
         }
     
         @Override
         public boolean isCredentialsNonExpired() {
             return credentialsNonExpired;
         }
     
         @Override
         public boolean isEnabled() {
             return enabled;
         }
     
         public Integer getId() {
             return id;
         }
     
         public void setId(Integer id) {
             this.id = id;
         }
     
         public Boolean getEnabled() {
             return enabled;
         }
     
         public void setEnabled(Boolean enabled) {
             this.enabled = enabled;
         }
     
         public Boolean getAccountNonExpired() {
             return accountNonExpired;
         }
     
         public void setAccountNonExpired(Boolean accountNonExpired) {
             this.accountNonExpired = accountNonExpired;
         }
     
         public Boolean getAccountNonLocked() {
             return accountNonLocked;
         }
     
         public void setAccountNonLocked(Boolean accountNonLocked) {
             this.accountNonLocked = accountNonLocked;
         }
     
         public Boolean getCredentialsNonExpired() {
             return credentialsNonExpired;
         }
     
         public void setCredentialsNonExpired(Boolean credentialsNonExpired) {
             this.credentialsNonExpired = credentialsNonExpired;
         }
     
         public List<Role> getRoles() {
             return roles;
         }
     
         public void setRoles(List<Role> roles) {
             this.roles = roles;
         }
     }

*  **Role**

package com.study.entity;
     
     /**
      * @ClassName Role
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 22:59
      * @Version 1.0
      */
     public class Role {
         private Integer id;
         private String name;
         private String nameZh;
     
         public Integer getId() {
             return id;
         }
     
         public void setId(Integer id) {
             this.id = id;
         }
     
         public String getName() {
             return name;
         }
     
         public void setName(String name) {
             this.name = name;
         }
     
         public String getNameZh() {
             return nameZh;
         }
     
         public void setNameZh(String nameZh) {
             this.nameZh = nameZh;
         }
     }

#### 3.12.4 创建UserDao ####

package com.study.dao;
     
     import com.study.entity.Role;
     import com.study.entity.User;
     import org.apache.ibatis.annotations.Mapper;
     
     import java.util.List;
     
     /**
      * @ClassName UserDao
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 22:59
      * @Version 1.0
      */
     @Mapper
     public interface UserDao {
         User loadUserByUsername(String username);
     
         /**
          * 根据用户id查询一个角色，注意一个用户可能不止一种角色
          *
          * @param uid
          * @return
          */
         List<Role> getRolesByUid(Integer uid);
     }

#### 3.12.5 创建UserDaoMapper ####

#### 3.12.6 创建MyUserDetailsService ####

package com.study.service;
     
     import com.study.dao.UserDao;
     import com.study.entity.User;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.security.core.userdetails.UserDetails;
     import org.springframework.security.core.userdetails.UserDetailsService;
     import org.springframework.security.core.userdetails.UsernameNotFoundException;
     import org.springframework.stereotype.Service;
     import org.springframework.util.ObjectUtils;
     
     /**
      * @ClassName MyUserDetailsService
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 23:02
      * @Version 1.0
      */
     @Service
     public class MyUserDetailsService implements UserDetailsService {
         private final UserDao userDao;
     
         @Autowired
         public MyUserDetailsService(UserDao userDao) {
             this.userDao = userDao;
         }
     
         @Override
         public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
             User user = userDao.loadUserByUsername(username);
             if (ObjectUtils.isEmpty(user))
                 throw new UsernameNotFoundException("用户不存在");
             user.setRoles(userDao.getRolesByUid(user.getId()));
             return user;
         }
     }

#### 3.12.7 验证码 ####

*  **KaptchaConfigurer** 配置

package com.study.config;
     
     import com.google.code.kaptcha.Producer;
     import com.google.code.kaptcha.impl.DefaultKaptcha;
     import com.google.code.kaptcha.util.Config;
     import org.springframework.context.annotation.Bean;
     import org.springframework.context.annotation.Configuration;
     
     import java.util.Properties;
     
     /**
      * @ClassName KaptchaConfigurer
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 23:04
      * @Version 1.0
      */
     @Configuration
     public class KaptchaConfigurer {
         @Bean
         public Producer kaptcha() {
             Properties properties = new Properties();
             //1.验证码宽度
             properties.setProperty("kaptcha.image.width", "150");
             //2.验证码高度
             properties.setProperty("kaptcha.image.height", "50");
             //3.验证码字符串
             properties.setProperty("kaptcha.textproducer.char.string", "0123456789");
             //4.验证码长度
             properties.setProperty("kaptcha.textproducer.char.length", "4");
             Config config = new Config(properties);
             DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
             defaultKaptcha.setConfig(config);
             return defaultKaptcha;
         }
     }

*  **VerityCodeController** 控制器

package com.study.controller;
     
     import com.google.code.kaptcha.Producer;
     import org.apache.tomcat.util.codec.binary.Base64;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.util.FastByteArrayOutputStream;
     import org.springframework.web.bind.annotation.GetMapping;
     import org.springframework.web.bind.annotation.RestController;
     
     import javax.imageio.ImageIO;
     import javax.servlet.http.HttpSession;
     import java.awt.image.BufferedImage;
     import java.io.IOException;
     
     /**
      * @ClassName VerifyCodeController
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 23:06
      * @Version 1.0
      */
     @RestController //一定是RestController而非Controller
     public class VerifyCodeController {
         private final Producer producer;
     
         @Autowired
         public VerifyCodeController(Producer producer) {
             this.producer = producer;
         }
     
         @GetMapping("/vc.jpg")
         public String getVerifyCode(HttpSession session) throws IOException {
             //1.生成验证码
             String verifyCode = producer.createText();
             //2.存入Session或Redis
             session.setAttribute("kaptcha", verifyCode);
             //3.生成图片
             BufferedImage bi = producer.createImage(verifyCode);
             //图片转化为字节
             FastByteArrayOutputStream fbaos = new FastByteArrayOutputStream();
             ImageIO.write(bi, "jpg", fbaos);
             //4.返回base64
             return Base64.encodeBase64String(fbaos.toByteArray());
         }
     }

*  **LoginKaptchaFilter** 过滤器

package com.study.filter;
     
     import com.fasterxml.jackson.databind.ObjectMapper;
     import com.study.exception.KaptchaNotMatchException;
     import org.springframework.security.authentication.AuthenticationServiceException;
     import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
     import org.springframework.security.core.Authentication;
     import org.springframework.security.core.AuthenticationException;
     import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
     import org.springframework.util.ObjectUtils;
     
     import javax.servlet.http.HttpServletRequest;
     import javax.servlet.http.HttpServletResponse;
     import java.io.IOException;
     import java.util.Map;
     
     /**
      * @ClassName LoginKaptchaFilter
      * @Description 自定义Filter
      * @Author Jiangnan Cui
      * @Date 2022/8/11 23:17
      * @Version 1.0
      */
     public class LoginKaptchaFilter extends UsernamePasswordAuthenticationFilter {
         public static final String FORM_KAPTCHA_KEY = "kaptcha";
         private String kaptchaParameter = FORM_KAPTCHA_KEY;
     
         public String getKaptchaParameter() {
             return kaptchaParameter;
         }
     
         public void setKaptchaParameter(String kaptchaParameter) {
             this.kaptchaParameter = kaptchaParameter;
         }
     
         @Override
         public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {
             //1.判断是否是POST请求
             if (!request.getMethod().equals("POST")) {
                 throw new AuthenticationServiceException("Authentication method not supported: " + request.getMethod());
             }
             try {
                 //2.获取请求数据
                 Map<String, String> userInfo = new ObjectMapper().readValue(request.getInputStream(), Map.class);
                 String kaptcha = userInfo.get(getKaptchaParameter());//用来获取数据中验证码
                 String username = userInfo.get(getUsernameParameter());//用来接收用户名
                 String password = userInfo.get(getPasswordParameter());//用来接收密码
                 //3.获取session中验证码
                 String sessionVerifyCode = (String) request.getSession().getAttribute("kaptcha");
                 if (!ObjectUtils.isEmpty(kaptcha) && !ObjectUtils.isEmpty(sessionVerifyCode) &&
                         kaptcha.equalsIgnoreCase(sessionVerifyCode)) {
                     //4.获取用户名和密码认证
                     UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(username, password);
                     setDetails(request, authRequest);
                     return this.getAuthenticationManager().authenticate(authRequest);
                 }
             } catch (IOException e) {
                 e.printStackTrace();
             }
             throw new KaptchaNotMatchException("验证码不匹配");
         }
     }

*  **定义验证码异常类**
    
         public class KaptchaNotMatchException extends AuthenticationException {
         
             public KaptchaNotMatchException(String msg) {
                 super(msg);
             }
         
             public KaptchaNotMatchException(String msg, Throwable cause) {
                 super(msg, cause);
             }
         }

#### 3.12.8 Security配置 ####

package com.study.config;
     
     import com.fasterxml.jackson.databind.ObjectMapper;
     import com.study.filter.LoginKaptchaFilter;
     import com.study.service.MyUserDetailsService;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.context.annotation.Bean;
     import org.springframework.context.annotation.Configuration;
     import org.springframework.http.HttpStatus;
     import org.springframework.security.authentication.AuthenticationManager;
     import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
     import org.springframework.security.config.annotation.web.builders.HttpSecurity;
     import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
     import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
     
     import java.util.HashMap;
     import java.util.Map;
     
     /**
      * @ClassName SecurityConfig
      * @Description TODO
      * @Author Jiangnan Cui
      * @Date 2022/8/11 23:06
      * @Version 1.0
      */
     @Configuration
     public class SecurityConfig extends WebSecurityConfigurerAdapter {
     
         //自定义内存数据源
         private MyUserDetailsService myUserDetailsService;
     
         @Autowired
         public SecurityConfig(MyUserDetailsService myUserDetailsService) {
             this.myUserDetailsService = myUserDetailsService;
         }
     
         @Override
         protected void configure(AuthenticationManagerBuilder auth) throws Exception {
             auth.userDetailsService(myUserDetailsService);
         }
     
         @Override
         @Bean
         public AuthenticationManager authenticationManagerBean() throws Exception {
             return super.authenticationManagerBean();
         }
     
         //配置
         @Bean
         public LoginKaptchaFilter loginKaptchaFilter() throws Exception {
             LoginKaptchaFilter loginKaptchaFilter = new LoginKaptchaFilter();
             //1.认证 url
             loginKaptchaFilter.setFilterProcessesUrl("/doLogin");
             //2.认证 接收参数
             loginKaptchaFilter.setUsernameParameter("uname");
             loginKaptchaFilter.setPasswordParameter("passwd");
             loginKaptchaFilter.setKaptchaParameter("kaptcha");
             //3.指定认证管理器
             loginKaptchaFilter.setAuthenticationManager(authenticationManagerBean());
             //4.指定成功时处理
             loginKaptchaFilter.setAuthenticationSuccessHandler((req, resp, authentication) -> {
                 Map<String, Object> result = new HashMap<String, Object>();
                 result.put("msg", "登录成功");
                 result.put("用户信息", authentication.getPrincipal());
                 resp.setContentType("application/json;charset=UTF-8");
                 resp.setStatus(HttpStatus.OK.value());
                 String s = new ObjectMapper().writeValueAsString(result);
                 resp.getWriter().println(s);
             });
             //5.认证失败处理
             loginKaptchaFilter.setAuthenticationFailureHandler((req, resp, ex) -> {
                 Map<String, Object> result = new HashMap<String, Object>();
                 result.put("msg", "登录失败: " + ex.getMessage());
                 resp.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value());
                 resp.setContentType("application/json;charset=UTF-8");
                 String s = new ObjectMapper().writeValueAsString(result);
                 resp.getWriter().println(s);
             });
             return loginKaptchaFilter;
         }
     
         @Override
         protected void configure(HttpSecurity http) throws Exception {
             http.authorizeRequests()
                     .mvcMatchers("/vc.jpg").permitAll()
                     .anyRequest().authenticated()
                     .and()
                     .formLogin()
                     .and()
                     .exceptionHandling()
                     .authenticationEntryPoint((req, resp, ex) -> {
                         resp.setContentType("application/json;charset=UTF-8");
                         resp.setStatus(HttpStatus.UNAUTHORIZED.value());
                         resp.getWriter().println("必须认证之后才能访问!");
                     })
                     .and()
                     .logout()
                     .and()
                     .csrf().disable();
     
             http.addFilterAt(loginKaptchaFilter(), UsernamePasswordAuthenticationFilter.class);
         }
     }

#### 3.12.9 测试 ####

**启动服务，打开postman，测试过程如下：**

**（1）生成验证码：**[http://localhost:8080/vc.jpg][http_localhost_8080_vc.jpg]

![d380446a829a4d12b93a0bf94ff8feb3.png][]

**破解base64格式的验证码：**[图片Base64编码互转工具-在线工具][Base64_-]，复制上面的数据到输入框内，前面加上前缀：**data:image/png;base64**,得到对应的4位验证码数字。

![d7a7fb6dfa75477c92352702f3c29ecd.png][]

**（2）测试登录**：[http://localhost:8080/doLogin][http_localhost_8080_doLogin]，测试数据均为数据库已有数据

![08c9acb2f8f0499b8ecac21e53e0966b.png][]

![12d577f47d3a4daf945721992cb761e7.png][]

![713a85f4adb64f72a6d54807a0d30d89.png][]

####  ####

#### 3.12.10 项目最终目录结构 ####

![ab54b6cbbd8e48f1850e5a7fd91e22dd.png][]

[SpringSecurity _..._bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=12
[SpringSecurity - WebSecurityConfigurerAdapter _-CSDN]: https://blog.csdn.net/qiaohao0206/article/details/125571568
[Spring Security_WebSecurityConfigurerAdapter_-CSDN]: https://blog.csdn.net/qq_35067322/article/details/123081005
[SpringSecurity _..._bilibili 1]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=13
[SpringSecurity _..._bilibili 2]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=14
[0029d1646fe140b4a1c6c004a9461f78.png]: https://img-blog.csdnimg.cn/0029d1646fe140b4a1c6c004a9461f78.png
[http_localhost_8080_hello]: http://localhost:8080/hello
[985c2dbed43d4160b25681c05a29d911.png]: https://img-blog.csdnimg.cn/985c2dbed43d4160b25681c05a29d911.png
[SpringSecurity _..._bilibili 3]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=15
[575bc183d8324271bf43668d7dffde5a.png]: https://img-blog.csdnimg.cn/575bc183d8324271bf43668d7dffde5a.png
[81e9df61e2f741fa90703fe106326851.png]: https://img-blog.csdnimg.cn/81e9df61e2f741fa90703fe106326851.png
[a3e348be6a5342afa49b74ec99d39891.png]: https://img-blog.csdnimg.cn/a3e348be6a5342afa49b74ec99d39891.png
[SpringSecurity _..._bilibili 4]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=16
[6f7e89e406874255b478f3f1e38a8afc.png]: https://img-blog.csdnimg.cn/6f7e89e406874255b478f3f1e38a8afc.png
[3301df2082ce4948913ab3854823449b.png]: https://img-blog.csdnimg.cn/3301df2082ce4948913ab3854823449b.png
[SpringSecurity _..._bilibili 5]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=17
[http_localhost_8080_logout]: http://localhost:8080/logout
[http_localhost_8080_aaa]: http://localhost:8080/aaa
[http_localhost_8080_logout.html]: http://localhost:8080/logout.html
[SpringSecurity _..._bilibili 6]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=18
[d0df7bf252de4962a0bb6c44372664de.png]: https://img-blog.csdnimg.cn/d0df7bf252de4962a0bb6c44372664de.png
[9360e49a818346f9a26db2d0e837791f.png]: https://img-blog.csdnimg.cn/9360e49a818346f9a26db2d0e837791f.png
[18._bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=19
[d725ac27ee32470287f58d021abb2594.png]: https://img-blog.csdnimg.cn/d725ac27ee32470287f58d021abb2594.png
[99e6487d88fa4639b165ce6fd17e5f05.png]: https://img-blog.csdnimg.cn/99e6487d88fa4639b165ce6fd17e5f05.png
[de5775b3f2f44e329b0f0c62d5e03d45.png]: https://img-blog.csdnimg.cn/de5775b3f2f44e329b0f0c62d5e03d45.png
[03f279b015e34b3c9dbc5a551a2a179a.png]: https://img-blog.csdnimg.cn/03f279b015e34b3c9dbc5a551a2a179a.png
[19._bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=20
[de1da2d6ac764ef8a7d9d3168bb46d91.png]: https://img-blog.csdnimg.cn/de1da2d6ac764ef8a7d9d3168bb46d91.png
[20._bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=21
[Servlet Authentication Architecture _ Spring Security]: https://docs.spring.io/spring-security/reference/servlet/authentication/architecture.html
[5a98868d9fea46da8447e30ae31f8f2b.png]: https://img-blog.csdnimg.cn/5a98868d9fea46da8447e30ae31f8f2b.png
[a526ecad87fa4488bf0883b0775c1bb9.png]: https://img-blog.csdnimg.cn/a526ecad87fa4488bf0883b0775c1bb9.png
[de543840e85d405a973fd5803039ed97.png]: https://img-blog.csdnimg.cn/de543840e85d405a973fd5803039ed97.png
[Topical Guide _ Spring Security Architecture]: https://spring.io/guides/topicals/spring-security-architecture
[1a366a963d514252b96eb9c802732add.png]: https://img-blog.csdnimg.cn/1a366a963d514252b96eb9c802732add.png
[21._ _bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=22
[61a634a59fa147c2b88734d887245503.png]: https://img-blog.csdnimg.cn/61a634a59fa147c2b88734d887245503.png
[22._bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=23
[23._AuthenticationManager_bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=24
[24._AuthenticationManager_bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=25
[2434149a943243f5949aa64fe211a460.png]: https://img-blog.csdnimg.cn/2434149a943243f5949aa64fe211a460.png
[25._bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=26
[26._bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=27
[011e242f9bfc407eadc4de4654b0e6ae.png]: https://img-blog.csdnimg.cn/011e242f9bfc407eadc4de4654b0e6ae.png
[6dd2f882bcb9481bb340d62d4ff9d414.png]: https://img-blog.csdnimg.cn/6dd2f882bcb9481bb340d62d4ff9d414.png
[ec90ed2d625e4db48857df83ba04748f.png]: https://img-blog.csdnimg.cn/ec90ed2d625e4db48857df83ba04748f.png
[9ed797b8b91b411f84e64e9b71364118.png]: https://img-blog.csdnimg.cn/9ed797b8b91b411f84e64e9b71364118.png
[15df7588b3f44b9f889dd0b6fa314616.png]: https://img-blog.csdnimg.cn/15df7588b3f44b9f889dd0b6fa314616.png
[http_localhost_8080_login.html]: http://localhost:8080/login.html
[27._web_bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=28
[3b12c2ca7f1240f49b0ea6efe5b559b3.png]: https://img-blog.csdnimg.cn/3b12c2ca7f1240f49b0ea6efe5b559b3.png
[24a37e97f6af4f868a5d4cf25842ae23.png]: https://img-blog.csdnimg.cn/24a37e97f6af4f868a5d4cf25842ae23.png
[4b00795756f74d86b3c138c3d6d013af.png]: https://img-blog.csdnimg.cn/4b00795756f74d86b3c138c3d6d013af.png
[28._bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=29
[a918c5f7daf44846add720edc3b09c1a.png]: https://img-blog.csdnimg.cn/a918c5f7daf44846add720edc3b09c1a.png
[http_localhost_8080_test]: http://localhost:8080/test
[ee3e048d0e314e57a1f4bb909666c0a5.png]: https://img-blog.csdnimg.cn/ee3e048d0e314e57a1f4bb909666c0a5.png
[http_localhost_8080_doLogin]: http://localhost:8080/doLogin
[a53debfdee824bad898ac215e82dc166.png]: https://img-blog.csdnimg.cn/a53debfdee824bad898ac215e82dc166.png
[db5cecc7ab684dd9bc6e723549206452.png]: https://img-blog.csdnimg.cn/db5cecc7ab684dd9bc6e723549206452.png
[29._bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=30
[73474329d58f4479b620f0220e82d414.png]: https://img-blog.csdnimg.cn/73474329d58f4479b620f0220e82d414.png
[30._ web _bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=31
[31._ web _bilibili]: https://www.bilibili.com/video/BV1z44y1j7WZ?p=32
[1fa00cbbd8d04a43bb36450fb8e72bb2.png]: https://img-blog.csdnimg.cn/1fa00cbbd8d04a43bb36450fb8e72bb2.png
[http_localhost_8080_index.html]: http://localhost:8080/index.html
[http_localhost_8080_vc.jpg]: http://localhost:8080/vc.jpg
[4072eb452eae4e298fce25a779cf7834.png]: https://img-blog.csdnimg.cn/4072eb452eae4e298fce25a779cf7834.png
[e3f56f2b8ec54449acd840f93f8acc34.png]: https://img-blog.csdnimg.cn/e3f56f2b8ec54449acd840f93f8acc34.png
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