\n| \u914d\u7f6e\u65b9\u5f0f<\/td>\n | \u5b9e\u73b0HandlerInterceptor<\/td>\n | web.xml\u6216@WebFilter<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u62e6\u622a\u5668\u7684\u6267\u884c\u6d41\u7a0b：<\/p>\n \u8bf7\u6c42 \u2192 \u8fc7\u6ee4\u5668 \u2192 \u62e6\u622a\u5668preHandle \u2192 \u63a7\u5236\u5668 \u2192 \u62e6\u622a\u5668postHandle \u2192 \u89c6\u56fe\u6e32\u67d3 \u2192 \u62e6\u622a\u5668afterCompletion \u2192 \u54cd\u5e94<\/p>\n \u62e6\u622a\u5668\u5b9e\u6218<\/h3>\n\u521b\u5efa\u62e6\u622a\u5668\u6b65\u9aa4<\/p>\n \u5b9e\u73b0HandlerInterceptor\u63a5\u53e3<\/li>\n\u91cd\u5199\u4e09\u4e2a\u6838\u5fc3\u65b9\u6cd5<\/li>\n\u914d\u7f6e\u62e6\u622a\u5668\u6ce8\u518c<\/li>\n\u767b\u5f55\u9a8c\u8bc1\u62e6\u622a\u5668<\/p>\n @Component<\/span>
\n@Slf4j<\/span>
\npublic<\/span> class<\/span> LoginInterceptor<\/span> implements<\/span> HandlerInterceptor<\/span> {<\/span><\/p>\n @Override<\/span>
\n public<\/span> boolean<\/span> preHandle<\/span>(<\/span>HttpServletRequest<\/span> request,<\/span> HttpServletResponse<\/span> response,<\/span> Object<\/span> handler)<\/span> throws<\/span> Exception<\/span> {<\/span><\/p>\n log.<\/span>info<\/span>(<\/span>"=== \u8fdb\u5165\u62e6\u622a\u5668 ==="<\/span>)<\/span>;<\/span>
\n log.<\/span>info<\/span>(<\/span>"\u8bf7\u6c42URL: "<\/span> +<\/span> request.<\/span>getRequestURI<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n log.<\/span>info<\/span>(<\/span>"\u8bf7\u6c42\u65b9\u6cd5: "<\/span> +<\/span> request.<\/span>getMethod<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n \/\/ \u767b\u5f55\u9a8c\u8bc1\u903b\u8f91<\/span>
\n HttpSession<\/span> session =<\/span> request.<\/span>getSession<\/span>(<\/span>)<\/span>;<\/span>
\n Object<\/span> user =<\/span> session.<\/span>getAttribute<\/span>(<\/span>"user"<\/span>)<\/span>;<\/span><\/p>\n if<\/span> (<\/span>user ==<\/span> null<\/span>)<\/span> {<\/span>
\n \/\/ \u672a\u767b\u5f55，\u8fd4\u56de\u9519\u8bef\u4fe1\u606f<\/span>
\n response.<\/span>setContentType<\/span>(<\/span>"application\/json;charset=utf-8"<\/span>)<\/span>;<\/span>
\n PrintWriter<\/span> writer =<\/span> response.<\/span>getWriter<\/span>(<\/span>)<\/span>;<\/span>
\n writer.<\/span>write<\/span>(<\/span>"{\\\\"code\\\\": 401, \\\\"message\\\\": \\\\"\u8bf7\u5148\u767b\u5f55\\\\"}"<\/span>)<\/span>;<\/span>
\n writer.<\/span>flush<\/span>(<\/span>)<\/span>;<\/span>
\n return<\/span> false<\/span>;<\/span> \/\/ \u4e2d\u65ad\u8bf7\u6c42<\/span>
\n }<\/span><\/p>\n return<\/span> true<\/span>;<\/span> \/\/ \u7ee7\u7eed\u6267\u884c<\/span><\/p>\n }<\/span><\/p>\n @Override<\/span>
\n public<\/span> void<\/span> postHandle<\/span>(<\/span>HttpServletRequest<\/span> request,<\/span> HttpServletResponse<\/span> response,<\/span> Object<\/span> handler,<\/span> @Nullable<\/span> ModelAndView<\/span> modelAndView)<\/span> throws<\/span> Exception<\/span> {<\/span><\/p>\n log.<\/span>info<\/span>(<\/span>"=== \u63a7\u5236\u5668\u6267\u884c\u5b8c\u6210 ==="<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n @Override<\/span>
\n public<\/span> void<\/span> afterCompletion<\/span>(<\/span>HttpServletRequest<\/span> request,<\/span> HttpServletResponse<\/span> response,<\/span> Object<\/span> handler,<\/span> @Nullable<\/span> Exception<\/span> ex)<\/span> throws<\/span> Exception<\/span> {<\/span><\/p>\n log.<\/span>info<\/span>(<\/span>"=== \u8bf7\u6c42\u5904\u7406\u5b8c\u6210 ==="<\/span>)<\/span>;<\/span>
\n if<\/span> (<\/span>ex !=<\/span> null<\/span>)<\/span> {<\/span>
\n log.<\/span>info<\/span>(<\/span>"\u5f02\u5e38\u4fe1\u606f: "<\/span> +<\/span> ex.<\/span>getMessage<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n }<\/span>
\n }<\/span>
\n}<\/span><\/p>\n\u914d\u7f6e\u62e6\u622a\u5668\u6ce8\u518c<\/p>\n @Configuration<\/span>
\npublic<\/span> class<\/span> WebConfig<\/span> implements<\/span> WebMvcConfigurer<\/span> {<\/span><\/p>\n @Autowired<\/span>
\n private<\/span> LoginInterceptor<\/span> loginInterceptor;<\/span><\/p>\n @Override<\/span>
\n public<\/span> void<\/span> addInterceptors<\/span>(<\/span>InterceptorRegistry<\/span> registry)<\/span> {<\/span>
\n registry.<\/span>addInterceptor<\/span>(<\/span>loginInterceptor)<\/span>
\n .<\/span>addPathPatterns<\/span>(<\/span>"\/**"<\/span>)<\/span> \/\/ \u62e6\u622a\u6240\u6709\u8def\u5f84<\/span>
\n .<\/span>excludePathPatterns<\/span>(<\/span> \/\/ \u6392\u9664\u8def\u5f84<\/span>
\n "\/user\/login"<\/span>,<\/span>
\n "\/user\/register"<\/span>,<\/span>
\n "\/css\/**"<\/span>,<\/span>
\n "\/js\/**"<\/span>,<\/span>
\n "\/images\/**"<\/span>
\n )<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n\u6d4b\u8bd5\u7ed3\u679c<\/p>\n 2026-01-18T21:25:46.606+08:00 INFO 21940 — [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[\/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
\n2026-01-18T21:25:46.606+08:00 INFO 21940 — [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
\n2026-01-18T21:25:46.606+08:00 INFO 21940 — [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 0 ms
\n2026-01-18T21:25:46.616+08:00 INFO 21940 — [nio-8080-exec-1] c.g.interceptor.LoginInterceptor : === \u8fdb\u5165\u62e6\u622a\u5668 ===
\n2026-01-18T21:25:46.616+08:00 INFO 21940 — [nio-8080-exec-1] c.g.interceptor.LoginInterceptor : \u8bf7\u6c42URL: \/user\/info
\n2026-01-18T21:25:46.616+08:00 INFO 21940 — [nio-8080-exec-1] c.g.interceptor.LoginInterceptor : \u8bf7\u6c42\u65b9\u6cd5: GET
\n2026-01-18T21:25:53.584+08:00 INFO 21940 — [nio-8080-exec-3] c.g.interceptor.LoginInterceptor : === \u8fdb\u5165\u62e6\u622a\u5668 ===
\n2026-01-18T21:25:53.584+08:00 INFO 21940 — [nio-8080-exec-3] c.g.interceptor.LoginInterceptor : \u8bf7\u6c42URL: \/user\/info
\n2026-01-18T21:25:53.584+08:00 INFO 21940 — [nio-8080-exec-3] c.g.interceptor.LoginInterceptor : \u8bf7\u6c42\u65b9\u6cd5: GET
\n2026-01-18T21:25:53.586+08:00 INFO 21940 — [nio-8080-exec-3] c.g.interceptor.LoginInterceptor : === \u63a7\u5236\u5668\u6267\u884c\u5b8c\u6210 ===
\n2026-01-18T21:25:53.586+08:00 INFO 21940 — [nio-8080-exec-3] c.g.interceptor.LoginInterceptor : === \u8bf7\u6c42\u5904\u7406\u5b8c\u6210 ===<\/p>\n \u76d1\u542c\u5668\u6982\u5ff5\u548c\u4f5c\u7528**<\/h3>\n\u6838\u5fc3\u6982\u5ff5\u8bf4\u660e<\/p>\n |
![\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260120105016-696f5de8454b6.png\")
<\/p>\n<\/p>\n