ssm配置完成shiro，实现登录验证的功能

旧城等待， 2022-05-13 11:22 179阅读 0赞

花了一天时间，算是完成了shiro登录验证的这一基本功能。

[https://www.w3cschool.cn/shiro/andc1if0.html][https_www.w3cschool.cn_shiro_andc1if0.html] 这个教程可以多看看，核心的基础功能很重要。

# 实现shiro #

## **第一步，引入所需要的依赖** ##

在pom.xml文件中加入

<properties>
    
            
    
            <slf4j.version>1.7.7</slf4j.version>
    
            <log4j.version>1.2.17</log4j.version>
    
        </properties>
    
            
    
            <dependency>
    
                <groupId>log4j</groupId>
    
                <artifactId>log4j</artifactId>
    
                <version>${log4j.version}</version>
    
            </dependency>
    
            
    
            <dependency>
    
                <groupId>com.alibaba</groupId>
    
                <artifactId>fastjson</artifactId>
    
                <version>1.1.41</version>
    
            </dependency>
    
            <dependency>
    
                <groupId>org.slf4j</groupId>
    
                <artifactId>slf4j-api</artifactId>
    
                <version>${slf4j.version}</version>
    
            </dependency>
    
            <dependency>
    
                <groupId>org.slf4j</groupId>
    
                <artifactId>slf4j-log4j12</artifactId>
    
                <version>${slf4j.version}</version>
    
            </dependency>
    
            
    
            
    
            <dependency>
    
                <groupId>org.apache.shiro</groupId>
    
                <artifactId>shiro-all</artifactId>
    
                <version>1.3.2</version>
    
            </dependency>
    
            
    
            <dependency>
    
                <groupId>net.sf.ehcache</groupId>
    
                <artifactId>ehcache-core</artifactId>
    
                <version>2.6.11</version>
    
            </dependency>

## **第二步：在web.xml中配置shiroFilter** ##

<filter>
    
            <filter-name>shiroFilter</filter-name>
    
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    
            <init-param>
    
                <param-name>targetFilterLifecycle</param-name>
    
                <param-value>true</param-value>
    
            </init-param>
    
        </filter>
    
    
        <filter-mapping>
    
            <filter-name>shiroFilter</filter-name>
    
            <url-pattern>/*</url-pattern>
    
    </filter-mapping>

## **第三步：新建类MyShiroRealm，代码里面有详细的注释** ##

package com.wolwo.shiro;
    
    public class MyShiroReaml extends AuthorizingRealm {
    
        @Autowired
    
        ShiroUserService shiroUserService;
    
        /**
    
         * Authorization(授权)：访问控制的过程，即决定是否有权限去访问受保护的资源。
    
         * @param pc
    
         * @return
    
         */
    
        @Override
    
        protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection pc) {
    
            return null;
    
        }
    
    
        /**
    
         * Authentication(身份验证)：简称为“登录”，即证明用户是谁。
    
         * @param token
    
         * @return
    
         * @throws AuthenticationException
    
         */
    
        @Override
    
        protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
    
    
            // 1. 把AuthenticationToken转换为UsernamePasswordToken
    
            UsernamePasswordToken upToken = (UsernamePasswordToken) token;
    
            // 2. 从UsernamePasswordToken中获取email
    
            String staffId = upToken.getUsername();
    
            // 3. 若用户不存在，抛出UnknownAccountException异常
    
            ShiroUser shiroUser = shiroUserService.selectByStaffId(staffId);
    
            if (shiroUser == null) {
    
                throw new UnknownAccountException("用户不存在！");
    
            }
    
            // 4.
    
            // 根据用户的情况，来构建AuthenticationInfo对象并返回，通常使用的实现类为SimpleAuthenticationInfo
    
            // 以下信息从数据库中获取
    
            // （1）principal：认证的实体信息，可以是email，也可以是数据表对应的用户的实体类对象
    
            Object principal = staffId;
    
            // （2）credentials：密码
    
            Object credentials = shiroUser.getPassword();
    
            // （3）realmName：当前realm对象的name，调用父类的getName()方法即可
    
            String realmName = getName();
    
            // （4）盐值：取用户信息中唯一的字段来生成盐值，避免由于两个用户原始密码相同，加密后的密码也相同
    
            ByteSource credentialsSalt = ByteSource.Util.bytes(staffId);
    
            SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(principal, credentials, credentialsSalt,
    
                    realmName);
    
            return info;
    
        }
    
    }

## **第四步：在src目录下新建ehcache.xml** ##

<?xml version="1.0" encoding="UTF-8"?>
    
    <ehcache>
    
        <diskStore path="./target/tmp"/>
    
        <defaultCache
    
                maxElementsInMemory="10000"
    
                eternal="false"
    
                timeToIdleSeconds="120"
    
                timeToLiveSeconds="120"
    
                overflowToDisk="true"
    
        />
    
        <cache name="sampleCache1"
    
               maxElementsInMemory="10000"
    
               eternal="false"
    
               timeToIdleSeconds="300"
    
               timeToLiveSeconds="600"
    
               overflowToDisk="true"
    
        />
    
        <cache name="sampleCache2"
    
               maxElementsInMemory="1000"
    
               eternal="true"
    
               timeToIdleSeconds="0"
    
               timeToLiveSeconds="0"
    
               overflowToDisk="false"
    
        />
    
    </ehcache>

## **第五步：在spring配置文件spring-shiro.xml 中配置shiro,随后在spring配置文件里import引入** ##

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    
        
        
        <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
            <property name="cacheManager" ref="cacheManager" />
            <property name="authenticator" ref="authenticator"></property>
            
            <property name="realms">
                <list>
                    <ref bean="userRealm" />
                </list>
            </property>
        </bean>
    
        
        
        <bean id="cacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">
            <property name="cacheManagerConfigFile" value="classpath:ehcache.xml" />
        </bean>
    
        
        
        <bean id="userRealm" class="com.wolwo.shiro.MyShiroReaml">
            
            <property name="credentialsMatcher">
                <bean class="org.apache.shiro.authc.credential.HashedCredentialsMatcher">
                    
                    <property name="hashAlgorithmName" value="MD5"></property>
                    
                    <property name="hashIterations" value="2"></property>
                </bean>
            </property>
        </bean>
    
        
        
    
        
        
                
                
        
                
            
        
    
        
        
        <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
            <property name="securityManager" ref="securityManager" />
            
            
            
            
            
                
                    
                    
                    
    
                    
    
                    
                
            
        </bean>
    
        
        <bean id="authenticator" class="org.apache.shiro.authc.pam.ModularRealmAuthenticator">
            
            <property name="authenticationStrategy">
                <bean class="org.apache.shiro.authc.pam.AtLeastOneSuccessfulStrategy"></bean>
            </property>
        </bean>
        
    </beans>

里面有很多被我注释起来了，是因为在测试的过程中，出现过很多错误，这些错误设计到权限、角色、还有shiro的一些其他功能。因为在学习中，尽量简化开发，而且目前只需要登录验证的功能，所以选择注释了起来。

但是有一个很严重的问题，我是用idea开发的，现在我项目的tomcat可以启动，但是启动后用redeplod或者restart server都会报错，只有关掉tomcat后，再启动才能运行，我怀疑是eccache的问题，但是还没有找到解决方案

## **第六步：测试（包括controller、service、mapper等）** ##

**service和mapper等在此省略**

我新建了一个表专门用于shiro的用户登录

![70][]

然后生成了service，mapper文件，写了一个 用staffId查询信息的方法。

在controller里的写法

package com.wolwo.shiro.controller;
    
    import com.wolwo.system.domain.ShiroUser;
    import com.wolwo.system.service.ShiroUserService;
    import org.apache.log4j.Logger;
    import org.apache.shiro.SecurityUtils;
    import org.apache.shiro.authc.*;
    import org.apache.shiro.crypto.hash.SimpleHash;
    import org.apache.shiro.subject.Subject;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RequestParam;
    
    import javax.servlet.http.HttpSession;
    import java.util.Date;
    import java.util.Map;
    
    
    @Controller
    @RequestMapping("/user")
    public class ShiroController {
        @Autowired
        ShiroUserService shiroUserService;
    
        @RequestMapping(value = "register", method = RequestMethod.POST)
        public void register(
    //            @RequestParam("staffId") String staffId, @RequestParam("password") String password
                @RequestBody Map<String,String> map
        ) {
            String staffId = map.get("staffId");
            String password = map.get("password");
            String passwordMd5 = new SimpleHash("md5", password, staffId, 2).toString();
            ShiroUser shiroUser = new ShiroUser();
            shiroUser.setStaffId(staffId);
            shiroUser.setPassword(passwordMd5);
            shiroUser.setCreateTime(new Date());
            shiroUserService.insertSelective(shiroUser);
        }
    
        @RequestMapping(value = "login", method = RequestMethod.POST)
        public void login(
    //            @RequestParam("staffId") String staffId, @RequestParam("password") String password
                @RequestBody Map<String,String> map
        ) {
            String staffId = map.get("staffId");
            String password = map.get("password");
            Subject subject = SecurityUtils.getSubject();
            if (!subject.isAuthenticated()) {
                UsernamePasswordToken token = new UsernamePasswordToken(staffId, password);
                token.setRememberMe(false);
                try {
                    subject.login(token);
                    System.out.println("登录成功");
                } catch (IncorrectCredentialsException ice) {
                    System.out.println("邮箱/密码不匹配！");
                } catch (LockedAccountException lae) {
                    System.out.println("账户已被冻结！");
                } catch (AuthenticationException ae) {
                    System.out.println("token生成异常" + ae.getMessage());
                }
            }
        }
    
    }

** 有一点需要注意的是，controller中注册的接口加密方式，与shiro的密码加密方式保持一致才能使用，否则出现密码不正确、生成token失败等问题。**

这些写完后，可以先使用注册和登录接口，测试是否可用，我是可用的。

[https_www.w3cschool.cn_shiro_andc1if0.html]: https://www.w3cschool.cn/shiro/andc1if0.html
[70]: /images/20220513/ee8d30c3335e45db82f3dde102ae44bd.png