Весна 4 WebSocket интегрируется в приложение Spring MVC

Question

1. Я пишу простое веб-приложение на основе Spring MVC. Everything run Ok. Затем я создаю Endpoint и HandShake класс Terminal (C# Application) связывается с сервером через Websocket.

   • WebsocketEndPoint.java:

     public class WebsocketEndPoint extends BinaryWebSocketHandler { 
     
         @Override 
         public void afterConnectionEstablished(WebSocketSession session) throws Exception { 
          System.out.println("After Connection Established !!!!"); 
         } 
     
         @Override 
         protected void handleBinaryMessage(WebSocketSession session, BinaryMessage message) throws Exception { 
          session.sendMessage(message); 
         } 
     
         @Override 
         public void afterConnectionClosed(WebSocketSession session, CloseStatus closeStatus) throws Exception { 
          System.out.println("After Connection Closed !!!!"); 
         } 
     
     } 
     

   • HandshakeInterceptor.java:

     public class HandshakeInterceptor extends HttpSessionHandshakeInterceptor{ 
     
         @Override 
         public boolean beforeHandshake(ServerHttpRequest request, 
          ServerHttpResponse response, WebSocketHandler wsHandler, 
     Map<String, Object> attributes) throws Exception { 
          System.out.println("Before Handshake"); 
          return super.beforeHandshake(request, response, wsHandler, attributes); 
         } 
     
         @Override 
         public void afterHandshake(ServerHttpRequest request, 
     ServerHttpResponse response, WebSocketHandler wsHandler, Exception ex) { 
          System.out.println("After Handshake"); 
          super.afterHandshake(request, response, wsHandler, ex); 
         } 
     } 
     

   • XML для настройки обработчика WebSocket и перехватчик: websocketconfig.xml

     <beans xmlns="http://www.springframework.org/schema/beans" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
         xmlns:websocket="http://www.springframework.org/schema/websocket" 
         xsi:schemaLocation=" 
          http://www.springframework.org/schema/beans 
          http://www.springframework.org/schema/beans/spring-beans.xsd 
          http://www.springframework.org/schema/websocket 
          http://www.springframework.org/schema/websocket/spring-websocket.xsd"> 
     
          <bean id="websocket" class="com.javahash.spring.WebsocketEndPoint"/> 
     
          <websocket:handlers> 
           <websocket:mapping path="/PaymentHandler" handler="websocket"/> 
           <websocket:handshake-interceptors> 
           <bean class="com.javahash.spring.HandshakeInterceptor"/> 
           </websocket:handshake-interceptors> 
          </websocket:handlers> 
     </beans> 
     

2. Добавить websocketconfig.xml в контексте Spring Application:

   • web.xml:

     <web-app xmlns="http://java.sun.com/xml/ns/j2ee" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" 
         version="2.4"> 
     
         <display-name>Web server</display-name> 
     
         <servlet> 
          <servlet-name>webserver</servlet-name> 
          <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
          <load-on-startup>1</load-on-startup> 
         </servlet> 
     
         <servlet-mapping> 
          <servlet-name>dispatcher</servlet-name> 
          <url-pattern>/</url-pattern> 
         </servlet-mapping> 
     
         <context-param> 
          <param-name>contextConfigLocation</param-name> 
          <param-value> 
           /WEB-INF/dispatcher-servlet.xml 
           /WEB-INF/websocketconf.xml 
          </param-value> 
         </context-param> 
     
         <listener> 
          <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
         </listener> 
     </web-app> 
     

3. После добавления websocketconfig.xml в контексте Спринг Application:

   • терминал (C# приложение) can communicate with Server via Socket но я can not access web.
   • У меня есть WARNING: No mapping found for HTTP request with URI [Spring4MVCHelloWorld/hello]] in DispatcherServlet with name 'dispatcher'

   • диспетчерскую-servlet.xml:

     <beans xmlns="http://www.springframework.org/schema/beans" 
     xmlns:context="http://www.springframework.org/schema/context" 
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xsi:schemaLocation=" 
     http://www.springframework.org/schema/beans 
     http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 
     http://www.springframework.org/schema/context 
     http://www.springframework.org/schema/context/spring-context-4.0.xsd"> 
     
         <context:component-scan base-package="com.javahash.spring.controller" /> 
     
         <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
          <property name="prefix"> 
           <value>/WEB-INF/views/</value> 
          </property> 
          <property name="suffix"> 
           <value>.jsp</value> 
          </property> 
         </bean> 
     </beans> 
     

   • HelloWorldController.java:

     package com.javahash.spring.controller; 
     
     import org.springframework.stereotype.Controller; 
     import org.springframework.ui.Model; 
     import org.springframework.web.bind.annotation.RequestMapping; 
     import org.springframework.web.bind.annotation.RequestParam; 
     
     @Controller 
     public class HelloWorldController { 
     
         @RequestMapping("/hello") 
         public String hello(@RequestParam(value="name", required=false, defaultValue="World") String name, Model model) { 
          model.addAttribute("name", name); 
          return "helloworld"; 
         } 
     
     } 
     

   • Кажется @Controller not effect.

ли я пропустить что-нибудь?

Answer 1

Я думаю, что вам не хватает <mvc:annotation-driven/> в вашем файле dispatcher-servlet.xml. Spring проверила ваши компоненты Controller, но Spring MVC не зарегистрировала ваши сопоставления.