访问1：localhost:8080/security，返回：需要先认证才能访问（说明没有权限）

访问2：localhost:8080/anonymous，返回：anonymous（说明正常访问）

 

相关文件如下：

pom.xml：

   <parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>3.2.4</version><relativePath/> <!-- lookup parent from repository --></parent><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-security</artifactId></dependency><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.8.18</version></dependency>

 WebSecurityConfiguration：

/*** Spring Security 配置项*/
@Configuration
@EnableWebSecurity
@EnableMethodSecurity
@EnableGlobalAuthentication
public class WebSecurityConfiguration {@Autowiredprivate JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;@Autowiredprivate RestAuthenticationEntryPoint restAuthenticationEntryPoint;@Autowiredprivate RestAccessDeniedHandler restAccessDeniedHandler;private UserDetailsService userDetailsService;@Autowiredprivate ApplicationContext applicationContext;@Beanpublic SecurityFilterChain securityFilterChain(HttpSecurity httpSecurity) throws Exception {// 搜寻 匿名标记 url： PreAuthorize("hasAnyRole('anonymous')") 和 PreAuthorize("@tsp.check('anonymous')") 和 AnonymousAccessMap<RequestMappingInfo, HandlerMethod> handlerMethodMap = applicationContext.getBean(RequestMappingHandlerMapping.class).getHandlerMethods();Set<String> anonymousUrls = new HashSet<>();for (Map.Entry<RequestMappingInfo, HandlerMethod> infoEntry : handlerMethodMap.entrySet()) {HandlerMethod handlerMethod = infoEntry.getValue();AnonymousAccess anonymousAccess = handlerMethod.getMethodAnnotation(AnonymousAccess.class);PreAuthorize preAuthorize = handlerMethod.getMethodAnnotation(PreAuthorize.class);PathPatternsRequestCondition pathPatternsCondition = infoEntry.getKey().getPathPatternsCondition();Set<String> patternList = new HashSet<>();if (null != pathPatternsCondition){Set<PathPattern> patterns = pathPatternsCondition.getPatterns();for (PathPattern pattern : patterns) {patternList.add(pattern.getPatternString());}}if (null != preAuthorize && preAuthorize.value().toLowerCase().contains("anonymous")) {anonymousUrls.addAll(patternList);} else if (null != anonymousAccess && null == preAuthorize) {anonymousUrls.addAll(patternList);}}httpSecurity// 禁用basic明文验证.httpBasic(it -> it.disable())// 前后端分离架构不需要csrf保护.csrf(it -> it.disable())// 禁用默认登录页.formLogin(it -> it.disable())// 禁用默认登出页.logout(it -> it.disable())// 设置异常的EntryPoint，如果不设置，默认使用Http403ForbiddenEntryPoint.exceptionHandling(exceptions -> {// 401exceptions.authenticationEntryPoint(restAuthenticationEntryPoint);// 403exceptions.accessDeniedHandler(restAccessDeniedHandler);})// 前后端分离是无状态的，不需要session了，直接禁用。.sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS)).authorizeHttpRequests(authorizeHttpRequests -> authorizeHttpRequests// 允许匿名访问.requestMatchers(anonymousUrls.toArray(new String[0])).permitAll()// 允许所有OPTIONS请求.requestMatchers(HttpMethod.OPTIONS, "/**").permitAll()// 允许 SpringMVC 的默认错误地址匿名访问.requestMatchers("/error").permitAll()// 允许任意请求被已登录用户访问，不检查Authority.anyRequest().authenticated()).authenticationProvider(authenticationProvider())// 加我们自定义的过滤器，替代UsernamePasswordAuthenticationFilter.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);return httpSecurity.build();}@Beanpublic CorsFilter corsFilter() {UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();CorsConfiguration config = new CorsConfiguration();// 允许所有域名进行跨域调用config.addAllowedOrigin("*");// 放行全部原始头信息config.addAllowedHeader("*");// 允许所有请求方法跨域调用config.addAllowedMethod("OPTIONS");config.addAllowedMethod("GET");config.addAllowedMethod("POST");config.addAllowedMethod("PUT");config.addAllowedMethod("DELETE");source.registerCorsConfiguration("/**", config);return new CorsFilter(source);}@Beanpublic UserDetailsService userDetailsService() {return username -> userDetailsService.loadUserByUsername(username);}@Beanpublic PasswordEncoder passwordEncoder() {return new BCryptPasswordEncoder();}@Beanpublic AuthenticationProvider authenticationProvider() {DaoAuthenticationProvider authProvider = new DaoAuthenticationProvider();authProvider.setUserDetailsService(userDetailsService());// 设置密码编辑器authProvider.setPasswordEncoder(passwordEncoder());return authProvider;}}

JwtAuthenticationTokenFilter

/*** JWT登录授权过滤器*/@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {@Overrideprotected void doFilterInternal(@NonNull HttpServletRequest request, @NonNull HttpServletResponse response,@NonNull FilterChain chain) throws ServletException, IOException {String authorization = request.getHeader("Authorization");response.setCharacterEncoding("utf-8");if (null == authorization){// 没有tokenchain.doFilter(request, response);return;}try{if (!authorization.startsWith("Bearer ")){// token格式不正确response.sendError(HttpServletResponse.SC_BAD_REQUEST, "token格式不正确");return;}boolean verify = MyJWTUtil.verify(authorization);if(!verify){// token格式不正确response.sendError(HttpServletResponse.SC_BAD_REQUEST, "token验证失败");return;}}catch (Exception e){// token格式不正确response.sendError(HttpServletResponse.SC_BAD_REQUEST, "token验证失败");return;}JWT jwt = MyJWTUtil.parseToken(authorization);Object uid = jwt.getPayload("uid");// todo 解析JWT获取用户信息LoginUser loginUser = new LoginUser();UsernamePasswordAuthenticationToken authenticationToken =new UsernamePasswordAuthenticationToken(loginUser,null,null);SecurityContextHolder.getContext().setAuthentication(authenticationToken);chain.doFilter(request, response);}}

RestAuthenticationEntryPoint：

/*** 认证失败处理类*/@Component
public class RestAuthenticationEntryPoint implements AuthenticationEntryPoint {@Overridepublic void commence(HttpServletRequest request, HttpServletResponse response,AuthenticationException authException) throws IOException {response.setHeader("Access-Control-Allow-Origin", "*");response.setHeader("Cache-Control", "no-cache");response.setContentType("application/json");response.setCharacterEncoding("UTF-8");response.setStatus(HttpStatus.UNAUTHORIZED.value());response.getWriter().println(authException == null? "Unauthorized" : "需要先认证才能访问");response.getWriter().flush();}}

RestAccessDeniedHandler：

/*** 自定义无权访问处理类*/
@Component
public class RestAccessDeniedHandler implements AccessDeniedHandler {@Overridepublic void handle(HttpServletRequest request, HttpServletResponse response,AccessDeniedException accessDeniedException) throws IOException {response.setHeader("Access-Control-Allow-Origin", "*");response.setHeader("Cache-Control", "no-cache");response.setContentType("application/json");response.setCharacterEncoding("UTF-8");response.setStatus(HttpStatus.FORBIDDEN.value());
//        response.getWriter()
//                .println(accessDeniedException==null?"AccessDenied":accessDeniedException.getMessage());response.getWriter().println(accessDeniedException == null? "AccessDenied" : "没有访问权限");response.getWriter().flush();}}

AnonymousAccess：

/*** 用于标记匿名访问方法*/
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface AnonymousAccess {}

MyJWTUtil：

/*** JWT工具类*/
public class MyJWTUtil extends JWTUtil {/*** 解析JWT Token** @param token token* @return {@link JWT}*/public static boolean verify(String token) {return verify(token, "LOGIN_TOKEN_KEY_20240410".getBytes());}/*** 解析JWT Token** @param token token* @return {@link JWT}*/public static boolean verify(String token, byte[] key) {if(StrUtil.isNotEmpty(token)){if(token.startsWith("Bearer ")){token = token.split("Bearer ")[1].trim();}}return JWT.of(token).setKey(key).verify();}/*** 解析JWT Token** @param token token* @return {@link JWT}*/public static JWT parseToken(String token) {if(StrUtil.isNotEmpty(token)){if(token.startsWith("Bearer ")){token = token.split("Bearer ")[1].trim();}}return JWT.of(token);}public static String getToken(HttpServletRequest request) {final String requestHeader = request.getHeader("Authorization");if (requestHeader != null && requestHeader.startsWith("Bearer ")) {return requestHeader.substring(7);}return null;}public static String createToken(String userId) {Map<String, Object> payload = new HashMap<>(4);payload.put("uid", userId);payload.put("expire_time", System.currentTimeMillis() + 1000 * 60 * 60 * 8);return createToken(payload, "LOGIN_TOKEN_KEY_20240410".getBytes());}
}

DemoController：

@RestController
public class DemoController {@GetMapping("anonymous")@AnonymousAccesspublic String loadCondition() {return "anonymous";}@GetMapping("security")public String security() {return "security";}}