spring框架下websocket的搭建

spring框架下websocket的搭建

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

com.fasterxml.jackson.core

jackson-core

2.4.0

com.fasterxml.jackson.core

jackson-databind

2.4.0

org.springframework

spring-websocket//version须和spring mvc的version保持一致，否则会出现问题

4.0.5.RELEASE

org.springframework

spring-messaging

4.0.5.RELEASE

2 更新spring-mvc.xml中namespace.xsd的版本

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:websocket="http://springframework.org/schema/websocket"

xsi:schemaLocation="

http://springframework.org/schema/beans http://springframework.org/schema/beans/spring-beans.xsd

http://springframework.org/schema/websocket http://springframework.org/schema/websocket/spring-websocket.xsd">

处理类和握手协议的spring配置(applicationContext.xml文件）

webconfig

@Override

public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {

　　　　 registry.addHandler(new HelloHandler(), "/hello").addInterceptors(new HandshakeInterceptor()).withSockJS().setHttpMessageCacheSize(20000);

　　　　}

3 创建握手（handshake）接口

public class HandshakeInterceptor extends HttpSessionHandshakeInterceptor {

@Override

public http://boolean beforeHandshake(ServerHttpRequest arg0,

ServerHttpResponse arg1, WebSocketHandler arg2,

Map 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

public class HelloHandler extends TextWebSocketHandler {

public static List users;

static{

users = new ArrayList();

}

@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;

}

}

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:websocket="http://springframework.org/schema/websocket"

xsi:schemaLocation="

http://springframework.org/schema/beans http://springframework.org/schema/beans/spring-beans.xsd

http://springframework.org/schema/websocket http://springframework.org/schema/websocket/spring-websocket.xsd">

处理类和握手协议的spring配置(applicationContext.xml文件）

webconfig

@Override

public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {

　　　　 registry.addHandler(new HelloHandler(), "/hello").addInterceptors(new HandshakeInterceptor()).withSockJS().setHttpMessageCacheSize(20000);

　　　　}

3 创建握手（handshake）接口

public class HandshakeInterceptor extends HttpSessionHandshakeInterceptor {

@Override

public http://boolean beforeHandshake(ServerHttpRequest arg0,

ServerHttpResponse arg1, WebSocketHandler arg2,

Map 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

public class HelloHandler extends TextWebSocketHandler {

public static List users;

static{

users = new ArrayList();

}

@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;

}

}

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