SpringMvc4.2.5 零配置出現 No mapping found for HTTP request with URI

標籤：nbsp   ping   public   序列   reg   type   jackson   ring   tps   

原文地址：SpringMvc4.2.5 零配置出現 No mapping found for HTTP request with URI

採用 spring 零配置，參考 http://hanqunfeng.iteye.com/blog/2113820，WebInitializer 類代碼如下：

public class WebInitializer implements WebApplicationInitializer {    private static final Logger logger = LogManager.getLogger(WebInitializer.class);    @Override    public void onStartup(ServletContext servletContext) throws ServletException {        logger.info("-------->啟動web應用");        /*         *  Log4jConfigListener: log4j 2日誌配置，設定檔為 classpath:log4j2.xml         */        servletContext.addListener(new Log4jServletContextListener());         Log4jServletFilter log4jServletFilter = new Log4jServletFilter();        servletContext.addFilter("log4jServletFilter", log4jServletFilter);        /*         *  OpenSessionInViewFilter: 加上該 filter 可以保證jackson能夠序列化LAZY FetchType         */        OpenSessionInViewFilter openSessionInViewFilter = new OpenSessionInViewFilter();          FilterRegistration.Dynamic openSessionInViewFilterRegistration = servletContext                .addFilter("openSessionInViewFilter", openSessionInViewFilter);        //指定在spring配置的sessionFactory        openSessionInViewFilterRegistration.setInitParameter("sessionFactoryBeanName", "sessionFactory");        //singleSession預設為true,若設為false則等於沒用OpenSessionInView        openSessionInViewFilterRegistration.setInitParameter("singleSession", "true");        openSessionInViewFilterRegistration.addMappingForUrlPatterns(                  EnumSet.of(DispatcherType.REQUEST, DispatcherType.FORWARD, DispatcherType.INCLUDE), false, "/");          ServerParameter params = ServerParameter.getInstance();        DBMananger.loadEnv();        if(DBMananger.connDB()) {       // 資料庫連接成功，再載入APP配置            params.addAttribute("connDBSataus", true);            /*             * spring mvc 外的配置 AppConfig類             */            AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();            rootContext.register(AppConfig.class);            servletContext.addListener(new ContextLoaderListener(rootContext));        }        /*         * spring-mvc 上下文         */        AnnotationConfigWebApplicationContext springMvcContext = new AnnotationConfigWebApplicationContext();//        springMvcContext.register(MvcConfig.class);        /*         * DispatcherServlet         */        DispatcherServlet dispatcherServlet = new DispatcherServlet(springMvcContext);        ServletRegistration.Dynamic dynamic = servletContext.addServlet("dispatcherServlet", dispatcherServlet);        dynamic.setLoadOnStartup(1);        dynamic.addMapping("/");        /*         * CharacterEncodingFilter: 解決中文亂碼問題          */        CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter();        characterEncodingFilter.setEncoding("utf-8");        FilterRegistration characterEncodingfilterRegistration =                servletContext.addFilter("characterEncodingFilter", characterEncodingFilter);        characterEncodingfilterRegistration.addMappingForUrlPatterns(EnumSet.of(DispatcherType.REQUEST), false, "/*");    }}

MvcConfig 配置如下：

public class MvcConfig extends WebMvcConfigurationSupport {    private static final Logger logger = LogManager.getLogger(MvcConfig.class);    /**     * 註冊視圖處理器     * @return     */    @Bean    public ViewResolver viewResolver() {        logger.info("註冊視圖處理器-------->ViewResolver");        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();        viewResolver.setPrefix("/jsp/");        viewResolver.setSuffix(".jsp");        return viewResolver;    }    /**     * 資源訪問處理器     * 可以在jsp中使用/images/**的方式訪問/images/下的內容     */    @Override      public void addResourceHandlers(ResourceHandlerRegistry registry) {          logger.info("資源訪問處理器-------->addResourceHandlers");        registry.addResourceHandler("/resources/**")                .addResourceLocations("/resources/")                .resourceChain(true).addResolver(                        new VersionResourceResolver().addContentVersionStrategy("/**"));    }}

結果出現No mapping found for HTTP request with URI警告，訪問靜態資源時為404錯誤。

經調試發現，在MvcConfig類中加入下面Bean，問題解決

    @Bean      public HandlerMapping resourceHandlerMapping() {          logger.info("HandlerMapping");          return super.resourceHandlerMapping();      }

為什麼要顯式聲明該Bean，尚未得知。

另外，如果在MvcConfig類中加註解，@Configuration，在WebInitializer類中配置

        AnnotationConfigWebApplicationContext springMvcContext = new AnnotationConfigWebApplicationContext();        springMvcContext.register(MvcConfig.class);

將會導致MvcConfig載入兩次，可以注釋掉其中一邊。

SpringMvc4.2.5 零配置出現 No mapping found for HTTP request with URI（轉）