spring框架下websocket的搭建

2024-02-26 16:19:05 240

本文基于ApachTomcat8.0.3+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springmvc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

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

webconfig

@Override
publicvoidregisterWebSocketHandlers(WebSocketHandlerRegistryregistry){
registry.addHandler(newHelloHandler(),"/hello").addInterceptors(newHandshakeInterceptor()).withSockJS().setHttpMessageCacheSize(20000);

}

3创建握手（handshake）接口

publicclassHandshakeInterceptorextendsHttpSessionHandshakeInterceptor{
@Override
publicbooleanbeforeHandshake(ServerHttpRequestarg0,
ServerHttpResponsearg1,WebSocketHandlerarg2,
Maparg3)throwsException{

System.out.println("----BeforeHandshake----");
returnsuper.beforeHandshake(arg0,arg1,arg2,arg3);
}

@Override
publicvoidafterHandshake(ServerHttpRequestrequest,
ServerHttpResponseresponse,WebSocketHandlerwsHandler,
Exceptionex){

System.out.println("----AfterHandshake----");
super.afterHandshake(request,response,wsHandler,ex);
}
}

4 创建websocket处理类

publicclassHelloHandlerextendsTextWebSocketHandler{

publicstaticListusers;
static{
users=newArrayList();
}

@Override
publicvoidhandleTextMessage(WebSocketSessionsession,TextMessagemessage){
//接收到客户端消息时调用
System.out.println("textmessage:"+session.getId()+"-"+message.getPayload());
}

@Override
publicvoidafterConnectionEstablished(WebSocketSessionsession)
throwsException{
//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(newTextMessage("你好"));

users.add(session);
}

@Override
publicvoidhandleTransportError(WebSocketSessionsession,
Throwableexception)throwsException{
//消息传输出错时调用
System.out.println("handleTransportError");
}

@Override
publicvoidafterConnectionClosed(WebSocketSessionsession,
CloseStatuscloseStatus)throwsException{
//一个客户端连接断开时关闭
System.out.println("afterConnectionClosed");
}

@Override
publicbooleansupportsPartialMessages(){
//TODOAuto-generatedmethodstub
returnfalse;
}
}

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毛票票。

spring框架下websocket的搭建

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