本文基于Apach Tomcat 8.0.3+MyEclipse+maven+JDK1.7
spring4.0以后加入了对websocket技术的支持，撸主目前的项目用的是SSM（springMVC+spring+MyBatis）框架，所以肯定要首选spring自带的websocket
1 在maven的pom.xml中加入websocket所依赖的jar包
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<dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.4.0</version></dependency><dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.4.0</version></dependency><dependency> <groupId>org.springframework</groupId> <artifactId>spring-websocket</artifactId>//version须和spring mvc的version保持一致，否则会出现问题 <version>4.0.5.RELEASE</version></dependency><dependency> <groupId>org.springframework</groupId> <artifactId>spring-messaging</artifactId> <version>4.0.5.RELEASE</version></dependency> |
2 更新spring-mvc.xml中namespace.xsd的版本
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<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"> |
处理类和握手协议的spring配置(applicationContext.xml文件）
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<bean id="websocket" class="com.xl.websocket.handler"/><websocket:handlers> <websocket:mapping path="/websocket" handler="websocket"/> <websocket:handshake-interceptors> <bean class="com.xl.websocket.HandshakeInterceptor"/> </websocket:handshake-interceptors> <websocket:sockjs/></websocket:handlers> |
webconfig
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@Overridepublic void registerWebSocketHandlers(WebSocketHandlerRegistry registry) { registry.addHandler(new HelloHandler(), "/hello").addInterceptors(new HandshakeInterceptor()).withSockJS().setHttpMessageCacheSize(20000); } |
3 创建握手（handshake）接口
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public class HandshakeInterceptor extends HttpSessionHandshakeInterceptor { @Override public boolean beforeHandshake(ServerHttpRequest arg0, ServerHttpResponse arg1, WebSocketHandler arg2, Map<String, Object> arg3) throws Exception { System.out.println("---- Before Handshake ----"); return super.beforeHandshake(arg0, arg1, arg2, arg3); } @Override public void afterHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Exception ex) { System.out.println("---- After Handshake ----"); super.afterHandshake(request, response, wsHandler, ex); }} |
4 创建websocket处理类
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public class HelloHandler extends TextWebSocketHandler { public static List<WebSocketSession> users; static{ users = new ArrayList<WebSocketSession>(); } @Override public void handleTextMessage(WebSocketSession session, TextMessage message) { //接收到客户端消息时调用 System.out.println("text message: " + session.getId() + "-" + message.getPayload()); } @Override public void afterConnectionEstablished(WebSocketSession session) throws Exception { // 与客户端完成连接后调用 System.out.println("afterConnectionEstablished"); System.out.println("getId:" + session.getId()); System.out.println("getLocalAddress:" + session.getLocalAddress().toString()); System.out.println("getTextMessageSizeLimit:" + session.getTextMessageSizeLimit()); System.out.println("getUri:" + session.getUri().toString()); System.out.println("getPrincipal:" + session.getPrincipal()); System.out.println(soslistService.getsss()); session.sendMessage(new TextMessage("你好")); users.add(session); } @Override public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception { // 消息传输出错时调用 System.out.println("handleTransportError"); } @Override public void afterConnectionClosed(WebSocketSession session, CloseStatus closeStatus) throws Exception { // 一个客户端连接断开时关闭 System.out.println("afterConnectionClosed"); } @Override public boolean supportsPartialMessages() { // TODO Auto-generated method stub return false; }} |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：http://www.cnblogs.com/difme/p/5584204.html
