{"id":2022,"date":"2017-06-17T14:34:47","date_gmt":"2017-06-17T06:34:47","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=2022"},"modified":"2026-08-18T11:24:11","modified_gmt":"2026-08-18T03:24:11","slug":"springboot%e4%b8%ad%e4%bd%bf%e7%94%a8servlet%e4%b8%8e%e6%9b%b4%e6%94%b9dispatcherservlet%e9%bb%98%e8%ae%a4url","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=2022","title":{"rendered":"SpringBoot\u4e2d\u4f7f\u7528Servlet\u4e0e\u66f4\u6539DispatcherServlet\u9ed8\u8ba4Url"},"content":{"rendered":"
\n

Spring Boot \u505a Web \u65f6\uff0c\u4e3b Servlet \u662f DispatcherServlet<\/strong>\uff0c\u9ed8\u8ba4 url-pattern<\/code> \u4e3a \/<\/code>\u3002\u9879\u76ee\u91cc\u8fd8\u7ecf\u5e38\u8981\u81ea\u5df1\u7684 Filter\u3001Listener\uff0c\u4ee5\u53ca\u989d\u5916\u7684 Servlet\u3002\u6ce8\u518c\u65b9\u5f0f\u53ea\u6709\u4e24\u6761\uff1a\u4ee3\u7801\u6ce8\u518c<\/strong> \u548c \u6ce8\u89e3\u81ea\u52a8\u6ce8\u518c<\/strong>\u3002<\/p>\n

\u4ee3\u7801\u4fa7\u7528 ServletRegistrationBean<\/code>\u3001FilterRegistrationBean<\/code>\u3001ServletListenerRegistrationBean<\/code>\uff1b\u4e5f\u53ef\u4ee5\u5b9e\u73b0 ServletContextInitializer<\/code> \u76f4\u63a5\u6ce8\u518c\u3002\u6ce8\u89e3\u4fa7\u5219\u662f @ServletComponentScan<\/code> \u914d @WebServlet<\/code> \/ @WebFilter<\/code> \/ @WebListener<\/code>\u3002<\/p>\n

\u4e00\u3001\u4ee3\u7801\u6ce8\u518c Servlet\uff0c\u5e76\u6539 DispatcherServlet \u7684 URL<\/h2>\n

1. MyServlet.java<\/h3>\n
public class MyServlet extends HttpServlet {\n\n    @Override\n    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n        System.out.println(\">>>>>>>>>>doGet()<<<<<<<<<<<\");\n        doPost(req, resp);\n    }\n\n    @Override\n    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n        System.out.println(\">>>>>>>>>>doPost()<<<<<<<<<<<\");\n    }\n}<\/code><\/pre>\n
2. \u542f\u52a8\u7c7b\u91cc\u6ce8\u5165\u4e24\u4e2a RegistrationBean<\/h3>\n
\u7b2c\u4e00\u4e2a Bean \u6e05\u7a7a DispatcherServlet \u9ed8\u8ba4\u6620\u5c04\uff0c\u6539\u6210\u53ea\u5403 *.do<\/code> \u548c *.json<\/code>\uff1b\u7b2c\u4e8c\u4e2a\u628a MyServlet<\/code> \u6302\u5230 \/xs\/*<\/code>\u3002ServletName \u9ed8\u8ba4\u662f\u7c7b\u540d\u9996\u5b57\u6bcd\u5c0f\u5199\uff0c\u5373 myServlet<\/code>\u3002\u8fd9\u79cd\u65b9\u5f0f\u4e0d\u9700\u8981 @ServletComponentScan<\/code>\u3002<\/p>\n
@SpringBootApplication\npublic class SpringBootSampleApplication {\n\n    public static void main(String[] args) {\n        SpringApplication.run(SpringBootSampleApplication.class, args);\n    }\n\n    \/**\n     * \u4fee\u6539 DispatcherServlet \u9ed8\u8ba4\u914d\u7f6e\n     *\/\n    @Bean\n    public ServletRegistrationBean dispatcherRegistration(DispatcherServlet dispatcherServlet) {\n        ServletRegistrationBean registration = new ServletRegistrationBean(dispatcherServlet);\n        registration.getUrlMappings().clear();\n        registration.addUrlMappings(\"*.do\");\n        registration.addUrlMappings(\"*.json\");\n        return registration;\n    }\n\n    \/**\n     * \u4f7f\u7528\u4ee3\u7801\u6ce8\u518c Servlet\uff08\u4e0d\u9700\u8981 @ServletComponentScan \u6ce8\u89e3\uff09\n     *\/\n    @Bean\n    public ServletRegistrationBean servletRegistrationBean() {\n        return new ServletRegistrationBean(new MyServlet(), \"\/xs\/*\");\n    }\n}<\/code><\/pre>\n\n\n\n\n\n\n
\u6ce8\u518c\u65b9\u5f0f<\/th>\n\u5178\u578b API<\/th>\n\u8981\u4e0d\u8981 @ServletComponentScan<\/th>\n<\/tr>\n<\/thead>\n
\u4ee3\u7801\u6ce8\u518c<\/td>\nServletRegistrationBean<\/code> \u7b49<\/td>\n\u4e0d\u8981<\/td>\n<\/tr>\n
\u6ce8\u89e3\u6ce8\u518c<\/td>\n@WebServlet<\/code> \/ @WebFilter<\/code><\/td>\n\u8981\uff0c\u6253\u5728\u542f\u52a8\u7c7b\u4e0a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u4e8c\u3001@ServletComponentScan + @WebFilter<\/h2>\n
\u5728 @SpringBootApplication<\/code> \u4e0a\u52a0 @ServletComponentScan<\/code> \u540e\uff0cServlet\u3001Filter\u3001Listener \u53ef\u4ee5\u76f4\u63a5\u7528 @WebServlet<\/code>\u3001@WebFilter<\/code>\u3001@WebListener<\/code> \u81ea\u52a8\u6ce8\u518c\uff0c\u4e0d\u5fc5\u518d\u5199 RegistrationBean\u3002<\/p>\n
1. LoginFilter.java<\/h3>\n
@WebFilter(value = \"\/*\")\npublic class LoginFilter implements Filter {\n\n    public LoginFilter() {\n        System.out.println(\"\u8fc7\u6ee4\u5668\u521d\u59cb\u5316\");\n    }\n\n    public void destroy() {\n        System.out.println(\"\u8fc7\u6ee4\u5668\u9500\u6bc1\");\n    }\n\n    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)\n            throws IOException, ServletException {\n        System.out.println(\"\u6267\u884c\u8fc7\u6ee4\u64cd\u4f5c>>>>>\");\n        chain.doFilter(request, response);\n    }\n\n    public void init(FilterConfig fConfig) throws ServletException {\n    }\n}<\/code><\/pre>\n
2. \u542f\u52a8\u7c7b\u6253\u5f00\u7ec4\u4ef6\u626b\u63cf<\/h3>\n
@SpringBootApplication\n@ServletComponentScan\npublic class Application {\n    public static void main(String[] args) {\n        SpringApplication.run(Application.class, args);\n    }\n}<\/code><\/pre>\n
\n
\u4e00\u53e5\u8bdd\u603b\u7ed3\uff1a\u989d\u5916 Servlet \/ Filter \u8981\u4e48 RegistrationBean \u4ee3\u7801\u6302\u8f7d\uff0c\u8981\u4e48 @ServletComponentScan \u914d @WebXxx\uff1b\u8981\u6539 SpringMVC \u5165\u53e3\u8def\u5f84\uff0c\u5bf9 DispatcherServlet \u6e05\u6389\u9ed8\u8ba4 \/ \u518d addUrlMappings\u3002<\/strong><\/p>\n<\/blockquote>\n<\/section>\n","protected":false},"excerpt":{"rendered":"
Spring Boot \u505a Web \u65f6\uff0c\u4e3b Servlet \u662f DispatcherServlet\uff0c\u9ed8\u8ba4 ur […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[93],"tags":[182,184,186,185],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2022"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2022"}],"version-history":[{"count":2,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2022\/revisions"}],"predecessor-version":[{"id":2024,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2022\/revisions\/2024"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}