基于spring security实现登录注销功能过程解析
这篇文章主要介绍了基于spring security实现登录注销功能过程解析,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
1、引入maven依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency>
2、Security 配置类 说明登录方式、登录页面、哪个url需要认证、注入登录失败/成功过滤器
@Configuration public class BrowserSecurityConfig extends WebSecurityConfigurerAdapter { /** * 注入 Security 属性类配置 */ @Autowired private SecurityProperties securityProperties; /** * 注入 自定义的 登录成功处理类 */ @Autowired private MyAuthenticationSuccessHandler mySuccessHandler; /** * 注入 自定义的 登录失败处理类 */ @Autowired private MyAuthenticationFailHandler myFailHandler; /** * 重写PasswordEncoder 接口中的方法,实例化加密策略 * @return 返回 BCrypt 加密策略 */ @Bean public PasswordEncoder passwordEncoder(){ return new BCryptPasswordEncoder(); } @Override protected void configure(HttpSecurity http) throws Exception { //登录成功的页面地址 String redirectUrl = securityProperties.getLoginPage(); //basic 登录方式 // http.httpBasic() //表单登录 方式 http.formLogin() .loginPage("/authentication/require") //登录需要经过的url请求 .loginProcessingUrl("/authentication/form") .successHandler(mySuccessHandler) .failureHandler(myFailHandler) .and() //请求授权 .authorizeRequests() //不需要权限认证的url .antMatchers("/authentication/*",redirectUrl).permitAll() //任何请求 .anyRequest() //需要身份认证 .authenticated() .and() //关闭跨站请求防护 .csrf().disable(); //默认注销地址:/logout http.logout(). //注销之后 跳转的页面 logoutSuccessUrl("/authentication/require"); }
3、自定义登录成功和失败的处理器
(1)、登录成功
@Component @Slf4j public class MyAuthenticationSuccessHandler extends SavedRequestAwareAuthenticationSuccessHandler { @Override public void onAuthenticationSuccess(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Authentication authentication) throws IOException, ServletException { logger.info("登录成功"); //将 authention 信息打包成json格式返回 httpServletResponse.setContentType("application/json;charset=UTF-8"); httpServletResponse.getWriter().write("登录成功"); } }
(2)、登录失败
@Component @Slf4j public class MyAuthenticationFailHandler extends SimpleUrlAuthenticationFailureHandler { @Override public void onAuthenticationFailure(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, AuthenticationException e) throws IOException, ServletException { logger.info("登录失败"); //设置状态码 httpServletResponse.setStatus(500); //将 登录失败 信息打包成json格式返回 httpServletResponse.setContentType("application/json;charset=UTF-8"); httpServletResponse.getWriter().write("登录失败:"+e.getMessage()); } }
4、UserDetail 类 加载用户数据 , 返回UserDetail 实例 (里面包含用户信息)
@Component @Slf4j public class MyUserDetailsService implements UserDetailsService { @Autowired private PasswordEncoder passwordEncoder; /** * 根据进行登录 * @param username * @return * @throws UsernameNotFoundException */ @Override public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { log.info("登录用户名:"+username); String password = passwordEncoder.encode("123456"); //User三个参数 (用户名+密码+权限) //根据查找到的用户信息判断用户是否被冻结 log.info("数据库密码:"+password); return new User(username,password, AuthorityUtils.commaSeparatedStringToAuthorityList("admin")); } }
5、登录路径请求类,.loginPage("/authentication/require")
@RestController @Slf4j @ResponseStatus(code = HttpStatus.UNAUTHORIZED) public class BrowerSecurityController { /** * 把当前的请求缓存到 session 里去 */ private RequestCache requestCache = new HttpSessionRequestCache(); /** * 重定向 策略 */ private RedirectStrategy redirectStrategy = new DefaultRedirectStrategy(); /** * 注入 Security 属性类配置 */ @Autowired private SecurityProperties securityProperties; /** * 当需要身份认证时 跳转到这里 */ @RequestMapping("/authentication/require") public SimpleResponse requireAuthentication(HttpServletRequest request, HttpServletResponse response) throws IOException { //拿到请求对象 SavedRequest savedRequest = requestCache.getRequest(request, response); if (savedRequest != null){ //获取 跳转url String targetUrl = savedRequest.getRedirectUrl(); log.info("引发跳转的请求是:"+targetUrl); //判断 targetUrl 是不是 .html 结尾, 如果是:跳转到登录页(返回view) if (StringUtils.endsWithIgnoreCase(targetUrl,".html")){ String redirectUrl = securityProperties.getLoginPage(); redirectStrategy.sendRedirect(request,response,redirectUrl); } } //如果不是,返回一个json 字符串 return new SimpleResponse("访问的服务需要身份认证,请引导用户到登录页"); }
6、postman请求测试
(1)未登录请求
(2)、登录
(3)、再次访问
(4)、注销
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