ssm使用websocket

SpringMvc中socket的部分

<?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:context="http://www.springframework.org/schema/context"    xmlns:mvc="http://www.springframework.org/schema/mvc"    xmlns:websocket="http://www.springframework.org/schema/websocket"    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd        http://www.springframework.org/schema/websocket http://www.springframework.org/schema/websocket/spring-websocket-4.3.xsd        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">    <mvc:annotation-driven/>      <mvc:resources location="/" mapping="/**"/>     <bean id="myHandler" class="com.turing.websocket.WebsocketEndPoint"></bean>    <websocket:handlers allowed-origins="*">        <websocket:mapping path="/myHandler" handler="myHandler"/>        <websocket:handshake-interceptors>            <bean class="com.turing.websocket.HandshakeInterceptor"/>        </websocket:handshake-interceptors>    </websocket:handlers>    <websocket:handlers allowed-origins="*">        <websocket:mapping path="/sockjs/myHandler" handler="myHandler"/>        <websocket:sockjs/>    </websocket:handlers></beans>

applicationContext里面不用写socket的

<?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:context="http://www.springframework.org/schema/context"    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/context http://www.springframework.org/schema/context/spring-context-4.3.xsd        http://www.springframework.org/schema/websocket http://www.springframework.org/schema/websocket/spring-websocket-4.3.xsd"></beans>

pom文件中

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>com.turing</groupId>  <artifactId>socket</artifactId>   <packaging>war</packaging>  <version>0.0.1-SNAPSHOT</version>  <name>socket Maven Webapp</name>  <url>http://maven.apache.org</url>  <properties>    <spring.version>4.3.3.RELEASE</spring.version>    <jackson.version>2.8.3</jackson.version>    <plugin.maven-version>2.2</plugin.maven-version>  </properties>  <dependencies>    <!-- socketJs start -->    <dependency>          <groupId>javax.servlet</groupId>          <artifactId>javax.servlet-api</artifactId>          <version>3.1.0</version>        </dependency>        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-core</artifactId>            <version>${jackson.version}</version>        </dependency>        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-databind</artifactId>            <version>${jackson.version}</version>        </dependency>        <dependency>           <groupId>org.springframework</groupId>           <artifactId>spring-websocket</artifactId>           <version>${spring.version}</version>        </dependency>        <dependency>           <groupId>org.springframework</groupId>           <artifactId>spring-messaging</artifactId>           <version>${spring.version}</version>        </dependency>        <!-- socketJs end -->        <!-- spring start -->        <dependency>          <groupId>org.springframework</groupId>          <artifactId>spring-core</artifactId>          <version>${spring.version}</version>        </dependency>        <dependency>          <groupId>org.springframework</groupId>          <artifactId>spring-web</artifactId>          <version>${spring.version}</version>        </dependency>        <dependency>          <groupId>org.springframework</groupId>          <artifactId>spring-webmvc</artifactId>          <version>${spring.version}</version>        </dependency>        <dependency>          <groupId>org.springframework</groupId>          <artifactId>spring-context-support</artifactId>          <version>${spring.version}</version>        </dependency>        <!-- spring end -->  </dependencies>  <build>     <finalName>socket</finalName>    <!--配置Maven 对resource文件 过滤 -->       <resources>           <resource>                <directory>src/main/resources</directory>                <includes>                    <include>**/*.properties</include>                    <include>**/*.xml</include>                </includes>                <filtering>true</filtering>            </resource>             <resource>                <directory>src/main/java</directory>                <includes>                    <include>**/*.java</include>                    <include>**/*.xml</include>                </includes>                <filtering>true</filtering>            </resource>              <resource>                <directory>src/main/webapp</directory>                <includes>                    <include>**/*.css</include>                    <include>**/*.html</include>                    <include>**/*.js</include>                    <include>**/*.jpg</include>                    <include>**/*.jsp</include>                    <include>**/*.ttf</include>                    <include>**/*.woff</include>                    <include>**/*.woff2</include>                    <include>**/*.svg</include>                    <include>**/*.eot</include>                </includes>                <filtering>true</filtering>            </resource>        </resources>        <plugins>           <!-- tomcat插件 -->                    <plugin>                <groupId>org.apache.tomcat.maven</groupId>                <artifactId>tomcat7-maven-plugin</artifactId>                <version>${plugin.maven-version}</version>                <configuration>                    <url>http://localhost:8080/manager/text</url>                    <uriEncoding>UTF-8</uriEncoding>                   <server>TomcatServer</server><!--和上面的setting文件id相同-->                    <path>/websocket</path>                   <finalName>websocket</finalName>                </configuration>            </plugin>        </plugins>  </build></project>

握手类HandshakeeInterceptor.java

package com.turing.websocket;import java.util.Map;import org.springframework.http.server.ServerHttpRequest;import org.springframework.http.server.ServerHttpResponse;import org.springframework.web.socket.WebSocketHandler;import org.springframework.web.socket.server.support.HttpSessionHandshakeInterceptor;/** * websocket握手类 * @author cheny * */public class HandshakeInterceptor extends HttpSessionHandshakeInterceptor{        /**         * 这个拦截器是因为使用websocket的时候springmvc获取不到session中的对象，可以在这拦截器中取出来处理         */      @Override      public boolean beforeHandshake(ServerHttpRequest request,ServerHttpResponse response, WebSocketHandler wsHandler,          Map<String, Object> attributes) throws Exception {        System.out.println("开始拦截类");        return super.beforeHandshake(request, response, wsHandler, attributes);      }      @Override      public void afterHandshake(ServerHttpRequest request,ServerHttpResponse response, WebSocketHandler wsHandler,          Exception ex) {        System.out.println("结束拦截类");        super.afterHandshake(request, response, wsHandler, ex);      }    }

WebsocketEndPoint.java

package com.turing.websocket;import org.springframework.web.socket.TextMessage;import org.springframework.web.socket.WebSocketSession;import org.springframework.web.socket.handler.TextWebSocketHandler;/** * websocket������ * @author cheny * */public class WebsocketEndPoint extends TextWebSocketHandler {      @Override      protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {        super.handleTextMessage(session, message);        TextMessage returnMessage = new TextMessage(message.getPayload()+" 发送的数据");        System.out.println("返回的信息"+returnMessage);        session.sendMessage(returnMessage);      }}

页面中使用

<!DOCTYPE html><html><head>    <meta name="content-type" content="text/html; charset=UTF-8">  <title>WebSocket/SockJS Echo Sample (Adapted from Tomcat's echo sample)</title>  <style type="text/css">    #connect-container {      float: left;      width: 400px    }    #connect-container div {      padding: 5px;    }    #console-container {      float: left;      margin-left: 15px;      width: 400px;    }    #console {      border: 1px solid #CCCCCC;      border-right-color: #999999;      border-bottom-color: #999999;      height: 170px;      overflow-y: scroll;      padding: 5px;      width: 100%;    }    #console p {      padding: 0;      margin: 0;    }  </style></head><body><div>  <div id="connect-container">    <input id="radio1" type="radio" name="group1" onclick="updateUrl('/socket/myHandler');">      <label for="radio1">W3C WebSocket</label>    <br>    <input id="radio2" type="radio" name="group1" onclick="updateUrl('/socket/sockjs/myHandler');">      <label for="radio2">SockJS</label>    <div>      <button id="connect" onclick="connect();">链接</button>      <button id="disconnect" disabled="disabled" onclick="disconnect();">断开</button>    </div>    <div>      <textarea id="message" style="width: 350px" placeholder="输入要发送的消息"></textarea>    </div>    <div>      <button id="echo" onclick="echo();" disabled="disabled">发送消息</button>    </div>  </div>  <div id="console-container">    <div id="console"></div>  </div></div></body><script src="http://cdn.sockjs.org/sockjs-0.3.min.js"></script><script type="text/javascript">    var ws = null;    var url = null;    var transports = [];    function setConnected(connected) {      document.getElementById('connect').disabled = connected;      document.getElementById('disconnect').disabled = !connected;      document.getElementById('echo').disabled = !connected;    }    //修改url，提供了两种url一种是wbsocket的一种是sockjs的    function updateUrl(urlPath) {        //如果链接中有sockjs字段就让链接等于传进来的本身      if (urlPath.indexOf('sockjs') != -1) {        url = urlPath;      }      else {        if (window.location.protocol == 'http:') {          url = 'ws://' + window.location.host + urlPath;        } else {          url = 'wss://' + window.location.host + urlPath;        }      }    }    //链接握手    function connect() {      if (!url) {        alert('选择一个url');        return;      }        //判断链接中是否有sockjs，如果有使用sockjs的方式拼链接，如果没有发送ws链接      if(url.indexOf('sockjs') != -1){       //new SockJS(url, _reserved, options);默认三个参数，中间的基本不用，最后一个是sockjs提供的传输功能，参数是数组（默认是全部开启）         ws =new SockJS(url);      }else{         ws= new WebSocket(url);      }       //打开链接      ws.onopen = function () {        setConnected(true);        log('消息: 链接已打开');      };      //获取消息      ws.onmessage = function (event) {      //调用下面的现实信息的方法        log('推送的消息: ' + event.data);      };      //关闭链接      ws.onclose = function (event) {        setConnected(false);         //调用下面的现实信息的方法        log('消息: 链接已关闭');        log(event);      };    }    //发送消息    function echo() {      if (ws != null) {      //获取到输入框中的消息        var message = document.getElementById('message').value;         //调用下面的现实信息的方法        log('发送: ' + message);        ws.send(message);      } else {        alert('消息没有链接地址，请重新连接');      }    }    //将传输回来的信息显示在右侧    function log(message) {      var console = document.getElementById('console');      var p = document.createElement('p');      p.style.wordWrap = 'break-word';      p.appendChild(document.createTextNode(message));      console.appendChild(p);      //防止消息过长干div外面去      while (console.childNodes.length > 25) {        console.removeChild(console.firstChild);      }      //console.scrollTop = console.scrollHeight;    }    //关闭链接的时候将ws链接清空    function disconnect() {      if (ws != null) {        ws.close();        ws = null;      }      setConnected(false);    }  </script></html>