Spring Security 03 认证处理器

矫情吗；* 2024-03-23 16:10 75阅读 0赞

## 自定义资源规则权限 ##

> **Spring Security 5.7.0 弃用了 WebSecurityConfigurerAdapter**
> 
> 官网博客链接地址：
> 
> [Spring Security without the WebSecurityConfigurerAdapter][]

**5.7.0 之前的配置**

@Configuration
    public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {
    	@Override
    	protected void configure(HttpSecurity http) throws Exception {
    		http.authorizeHttpRequests()
    			.mvcMatchers("/index").permitAll()
    			.anyRequest().authenticated()
    			.and().formLogin();
    	}
    }

**5.7.0 之后的配置**

@Configuration
    public class WebSecurityConfig {
    
        @Bean
        public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
            http.authorizeHttpRequests()
                    .mvcMatchers("/index")  // 注意: 放⾏资源必须放在所有认证请求之前!
                    .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
                    .and().formLogin(); // 代表开启表单认证
            return http.build();
        }
    }

## 自定义登入成功 / 失败处理 ##

由于现在项目都为前后端分离，所以这里展示页面跳转情况，如有需求，B站搜索：编程不良人

在前后端分离开发中就不需要成功之后跳转⻚⾯。只需要给前端返回⼀个 apiKey。

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 chain the {@link FilterChain} which can be used to proceed other filters in
    	 * the chain
    	 * @param authentication the <tt>Authentication</tt> object which was created during
    	 * the authentication process.
    	 * @since 5.2.0
    	 */
    	default void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, FilterChain chain,
    			Authentication authentication) throws IOException, ServletException {
    		onAuthenticationSuccess(request, response, authentication);
    		chain.doFilter(request, response);
    	}
    
    	/**
    	 * 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

public class LoginSuccessHandler implements AuthenticationSuccessHandler {
        @Override
        public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
            HashMap<String, Object> map = new HashMap<>();
            map.put("msg", "登入成功");
            map.put("status", 200);
            map.put("code", "apiKey");
            response.setContentType("application/json;charset=UTF-8");
            String json = new ObjectMapper().writeValueAsString(map);
            response.getWriter().println(json);
        }
    }

**自定义登入失败处理类**

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;
    
    }

public class LoginFailureHandler implements AuthenticationFailureHandler {
        @Override
        public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
            HashMap<String, Object> map = new HashMap<>();
            map.put("msg", "登入失败：" + exception.getMessage());
            map.put("status", 500);
            response.setContentType("application/json;charset=UTF-8");
            String json = new ObjectMapper().writeValueAsString(map);
            response.getWriter().println(json);
        }
    }

**总配置**

@Configuration
    public class WebSecurityConfig {
    
        @Bean
        public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
            http.authorizeHttpRequests()
                    .mvcMatchers("/index")  
                    .permitAll() 
                    .anyRequest().authenticated() 
                    .and().formLogin()
                    .successHandler(new LoginSuccessHandler())
                    .failureHandler(new LoginFailureHandler())
                    .and().csrf().disable(); 
            return http.build();
        }
    }

**启动项目登入**

![35d426b1897643cba0103edefa995e77.png][]

![926a11ea670b46308004f9517d7c0f81.png][]

## 注销登入 ##

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。

前后端分离开发，注销成功之后就不需要⻚⾯跳转了，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：

public class LogoutHandler implements LogoutSuccessHandler {
        @Override
        public void onLogoutSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
            HashMap<String, Object> map = new HashMap<>();
            map.put("msg", "注销成功" );
            map.put("status", 200);
            response.setContentType("application/json;charset=UTF-8");
            String json = new ObjectMapper().writeValueAsString(map);
            response.getWriter().println(json);
        }
    }

@Bean
        public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
            http.authorizeHttpRequests()
                    .mvcMatchers("/index")
                    .permitAll()
                    .anyRequest().authenticated()
                    .and().formLogin()
                    .successHandler(new LoginSuccessHandler())
                    .failureHandler(new LoginFailureHandler())
                    .and()
                    .logout()
                    .logoutRequestMatcher(
                            new OrRequestMatcher(
                                    new AntPathRequestMatcher("/logout1", "GET"),
                                    new AntPathRequestMatcher("/logout2", "GET")))
                    .logoutSuccessHandler(new LogoutHandler());
            return http.csrf().disable().build();
        }

![7634e4eb9a2349c99862840164462d2e.png][]

![30fb81abf98948bb87e6751fbf6f7977.png][]

![c05864afc601461e8b8a2170e029a91a.png][]

[Spring Security without the WebSecurityConfigurerAdapter]: https://spring.io/blog/2022/02/21/spring-security-without-the-websecurityconfigureradapter
[35d426b1897643cba0103edefa995e77.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/23/870beaf21d314b5ab7e8724e548f75c0.png
[926a11ea670b46308004f9517d7c0f81.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/23/8009a8c8e1834d52bf8a2c7586fe22a3.png
[7634e4eb9a2349c99862840164462d2e.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/23/ce3fa1494eef4dd2b8c5dc669d5a6d0f.png
[30fb81abf98948bb87e6751fbf6f7977.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/23/e69ce43536fb4167bce8d5a51ea8426b.png
[c05864afc601461e8b8a2170e029a91a.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/23/cb54e98555cb49799fed2b512e91d269.png