【spring+websocket的使用】

一、spring配置文件Java代码

<?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>

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二、web.xml配置

注意：必须将对应filter和servlet添加

Java代码

<async-supported>true</async-supported>

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<?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>

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三、代码

a、websocketconfig

Java代码

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();

}

}

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b、WebSocketHandshakeInterceptor

Java代码

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);

}

}

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c、SystemWebSocketHandler

Java代码

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;

<!--如下接口是自己的业务接口 根据情况自定义-->

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;

}

}

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四、相关项目jar包
http://pan.baidu.com/s/1sjI9GOt
如上基本完成 spring websocket

环境要求tomcat7及其以上 + jdk 1.7