• 【spring+websocket的使用】

    一、spring配置文件Java代码

    1. <?xml version="1.0" encoding="UTF-8"?>
    • <beans xmlns="http://www.springframework.org/schema/beans"
    •     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
    •     xmlns:context="http://www.springframework.org/schema/context"
    •     xmlns:mvc="http://www.springframework.org/schema/mvc"
    •     xmlns:p="http://www.springframework.org/schema/p"
    •     xmlns:websocket="http://www.springframework.org/schema/websocket"
    •     xsi:schemaLocation="http://www.springframework.org/schema/beans   
    •     http://www.springframework.org/schema/beans/spring-beans-4.1.xsd   
    •     http://www.springframework.org/schema/tx   
    •     http://www.springframework.org/schema/tx/spring-tx-4.1.xsd  
    •     http://www.springframework.org/schema/context  
    •     http://www.springframework.org/schema/context/spring-context-4.1.xsd  
    •     http://www.springframework.org/schema/mvc  
    •     http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
    •     http://www.springframework.org/schema/websocket 
    •     http://www.springframework.org/schema/websocket/spring-websocket-4.1.xsd ">
    •     <!-- @Autowired等注解驱动 -->
    •     <context:annotation-config />    
    •     <mvc:annotation-driven/>
    •     <!--一定要扫描指定的项目报--> 
    •     <context:component-scan base-package="com.soccermaster.websocket"></context:component-scan>
    •     <context:component-scan base-package="com.soccermaster.service"></context:component-scan>
    •     <context:component-scan base-package="com.soccermaster.dao"></context:component-scan>
    •     
    •     <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>
    •     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:viewClass="org.springframework.web.servlet.view.JstlView"
    •      p:prefix="/WEB-INF/pages/" p:suffix=".jsp">
    •     </bean>    
    • </beans>

    复制代码

    二、web.xml配置

    注意：必须将相应filter和servlet加入

    Java代码

    1. <async-supported>true</async-supported>  

    复制代码

    1. <?xml version="1.0" encoding="UTF-8"?>  
    • <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">  
    •   <display-name>spring websocket信息推送</display-name>  
    •   <welcome-file-list>  
    •     <welcome-file>testSocket.jsp</welcome-file>  
    •   </welcome-file-list>  
    •   <listener>  
    •     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
    •   </listener>  
    •   <listener>  
    •     <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>  
    •   </listener>  
    •   <servlet>  
    •     <servlet-name>SpringMVC</servlet-name>  
    •     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
    •     <init-param>  
    •       <param-name>contextConfigLocation</param-name>  
    •       <param-value>classpath:spring-mvc.xml</param-value>  
    •     </init-param>  
    •     <load-on-startup>1</load-on-startup>  
    •     <async-supported>true</async-supported>  
    •   </servlet>  
    •   <servlet-mapping>  
    •     <servlet-name>SpringMVC</servlet-name>  
    •     <url-pattern>/</url-pattern>  
    •   </servlet-mapping>  
    •   <context-param>  
    •     <param-name>contextConfigLocation</param-name>  
    •     <param-value>classpath:spring-mybatis.xml</param-value>  
    •   </context-param>  
    •   <filter>  
    •     <filter-name>encodingFilter</filter-name>  
    •     <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
    •     <async-supported>true</async-supported>  
    •     <init-param>  
    •       <param-name>encoding</param-name>  
    •       <param-value>UTF-8</param-value>  
    •     </init-param>  
    •   </filter>  
    •   <filter-mapping>  
    •     <filter-name>encodingFilter</filter-name>  
    •     <url-pattern>/*</url-pattern>  
    •   </filter-mapping>  
    •   <session-config>  
    •     <session-timeout>30</session-timeout>  
    •   </session-config>  
    • </web-app>  

    复制代码

    三、代码

    a、websocketconfig

    Java代码

    1. package com.soccermaster.websocket;  
    •   
    • import org.springframework.context.annotation.Configuration;  
    • import org.springframework.web.servlet.config.annotation.EnableWebMvc;  
    • import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;  
    • import org.springframework.web.socket.WebSocketHandler;  
    • import org.springframework.web.socket.config.annotation.EnableWebSocket;  
    • import org.springframework.web.socket.config.annotation.WebSocketConfigurer;  
    • import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry;  
    •   
    • import org.springframework.context.annotation.Bean;  
    •   
    • @Configuration  
    • @EnableWebMvc  
    • @EnableWebSocket  
    • public class WebSocketConfig extends WebMvcConfigurerAdapter implements WebSocketConfigurer {  
    •   
    •     public WebSocketConfig() {  
    •     }  
    •   
    •     @Override  
    •     public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {  
    •         registry.addHandler(systemWebSocketHandler(), "/websck").addInterceptors(new WebSocketHandshakeInterceptor());  
    •   
    •         System.out.println("registed!");  
    •         registry.addHandler(systemWebSocketHandler(), "/sockjs/websck/info").addInterceptors(new WebSocketHandshakeInterceptor()).withSockJS();  
    •   
    •     }  
    •   
    •     @Bean  
    •     public WebSocketHandler systemWebSocketHandler() {  
    •         //return new InfoSocketEndPoint();  
    •         return new SystemWebSocketHandler();  
    •     }  
    •   
    • }  

    复制代码

    b、WebSocketHandshakeInterceptor

    Java代码

    1. package com.soccermaster.websocket;  
    •   
    • import java.util.Map;  
    •   
    • import org.springframework.http.server.ServerHttpRequest;  
    • import org.springframework.http.server.ServerHttpResponse;  
    • import org.springframework.stereotype.Component;  
    • import org.springframework.web.socket.WebSocketHandler;  
    • import org.springframework.web.socket.server.support.HttpSessionHandshakeInterceptor;  
    •   
    •   
    • @Component  
    • public class WebSocketHandshakeInterceptor 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);  
    •     }  
    •   
    • }  

    复制代码

    c、SystemWebSocketHandler

    Java代码

    1. package com.soccermaster.websocket;  
    •   
    • import java.io.IOException;  
    • import java.util.ArrayList;  
    •   
    • import org.slf4j.Logger;  
    • import org.slf4j.LoggerFactory;  
    • import org.springframework.beans.factory.annotation.Autowired;  
    • import org.springframework.stereotype.Component;  
    • import org.springframework.web.socket.CloseStatus;  
    • import org.springframework.web.socket.TextMessage;  
    • import org.springframework.web.socket.WebSocketHandler;  
    • import org.springframework.web.socket.WebSocketMessage;  
    • import org.springframework.web.socket.WebSocketSession;  
    • <!--例如以下接口是自己的业务接口 依据情况自己定义-->  
    • import com.soccermaster.service.IMatchService;  
    • import com.soccermaster.util.json.JsonConvert;  
    •   
    • /** 
    • * 
    • */  
    • @Component  
    • public class SystemWebSocketHandler implements WebSocketHandler {  
    •   
    •     @Autowired  
    •     private IMatchService matchService;  
    •   
    •     private static final Logger logger;  
    •     private static final ArrayList<WebSocketSession> users;  
    •   
    •     static {  
    •         users = new ArrayList<WebSocketSession>();  
    •         logger = LoggerFactory.getLogger(SystemWebSocketHandler.class);  
    •     }  
    •   
    •     @Override  
    •     public void afterConnectionEstablished(WebSocketSession session)  
    •             throws Exception {  
    •         logger.debug("connect to the websocket success......");  
    •         System.out.println("connect to the websocket success......");  
    •         session.sendMessage(new TextMessage("Server:connected OK!"));  
    •   
    •         users.add(session);  
    •     }  
    •   
    •     @Override  
    •     public void handleMessage(WebSocketSession wss, WebSocketMessage<?

      > wsm)  

    •             throws Exception {  
    •         logger.debug("websocket handle message......");  
    •                 TextMessage returnMessage = new TextMessage(result);  
    •         wss.sendMessage("服务端返回信息");  
    •         //sendMessageToUsers(wss, wsm);  
    •     }  
    •   
    •     @Override  
    •     public void handleTransportError(WebSocketSession wss, Throwable thrwbl)  
    •             throws Exception {  
    •         if (wss.isOpen()) {  
    •             wss.close();  
    •         }  
    •         users.remove(wss);  
    •         logger.debug("websocket connection closed happen error......");  
    •         System.out.println("websocket connection closed happen error......");  
    •     }  
    •   
    •     @Override  
    •     public void afterConnectionClosed(WebSocketSession wss, CloseStatus cs)  
    •             throws Exception {  
    •         System.out.println("websocket connection closed......");  
    •         users.remove(wss);  
    •         logger.debug("websocket connection closed......");  
    •     }  
    •   
    •     @Override  
    •     public boolean supportsPartialMessages() {  
    •         return false;  
    •     }  
    •   
    • }  

    复制代码

    四、相关项目jar包 

    http://pan.baidu.com/s/1sjI9GOt

    如上基本完毕 spring websocket

    环境要求tomcat7及其以上  + jdk 1.7
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  • 原文地址：https://www.cnblogs.com/claireyuancy/p/7134257.html
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