spring-websocket 配置 websocket发送消息（群发）

参考：http://blog.csdn.net/heng_ji/article/details/39007227

http://blog.csdn.net/u014520745/article/details/62046396

项目结构：

所需jar包，spring-web版本需支持cors，项目中使用4.3.2+，log4j2，springmvc，jackson，servlet3.0

<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.zhoushun</groupId>
    <artifactId>tset</artifactId>
    <version>1.0-SNAPSHOT</version>
    <name>Archetype - tset</name>
    <url>http://maven.apache.org</url>
    <packaging>war</packaging>

    <properties>
        <spring.version>4.3.2.RELEASE</spring.version>
        <aspectj.version>1.8.9</aspectj.version>
        <slf4j.version>1.7.10</slf4j.version>
        <log4j2.version>2.3</log4j2.version>
        <disruptor.version>3.3.4</disruptor.version>
    </properties>
    <dependencies>

        <!-- spring websocket-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-messaging</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-websocket</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- spring -->

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <!-- <version>3.1.1.RELEASE</version> -->
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>${aspectj.version}</version>
        </dependency>

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>${aspectj.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>junit</groupId>
                    <artifactId>junit</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <!-- selenium-->
        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-java</artifactId>
            <version>2.44.0</version>
        </dependency>

        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.1</version>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.3.2</version>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.3</version>
        </dependency>
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.2.1</version>
        </dependency>

        <!--<dependency>-->
            <!--<groupId>org.slf4j</groupId>-->
            <!--<artifactId>slf4j-log4j12</artifactId>-->
            <!--<version>1.7.12</version>-->
        <!--</dependency>-->

        <dependency>
            <groupId>io.netty</groupId>
            <artifactId>netty-all</artifactId>
            <version>4.0.23.Final</version>
            <exclusions>
                <exclusion>
                    <groupId>io.netty</groupId>
                    <artifactId>netty-tcnative</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>io.netty</groupId>
            <artifactId>netty-example</artifactId>
            <version>4.0.23.Final</version>
            <exclusions>
                <exclusion>
                    <groupId>io.netty</groupId>
                    <artifactId>netty-tcnative</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.0.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.thrift</groupId>
            <artifactId>libthrift</artifactId>
            <version>0.9.3</version>
        </dependency>

        <dependency>
            <groupId>com.google.protobuf</groupId>
            <artifactId>protobuf-java</artifactId>
            <version>2.6.1</version>
        </dependency>

        <!-- zookeeper-->
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.4.6</version>
        </dependency>

        <!-- Objenesis -->
        <dependency>
            <groupId>org.objenesis</groupId>
            <artifactId>objenesis</artifactId>
            <version>2.1</version>
        </dependency>

        <!-- CGLib -->
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>3.1</version>
        </dependency>

        <dependency>
            <groupId>com.dianping.dpsf</groupId>
            <artifactId>dpsf-net</artifactId>
            <version>2.7.9</version>
        </dependency>

        <dependency>
            <groupId>net.sourceforge.htmlunit</groupId>
            <artifactId>htmlunit</artifactId>
            <version>2.18</version>
        </dependency>

        <dependency>
            <groupId>net.sourceforge.htmlunit</groupId>
            <artifactId>htmlunit-core-js</artifactId>
            <version>2.9</version>
            <scope>compile</scope>
        </dependency>

        <dependency>
            <groupId>xml-apis</groupId>
            <artifactId>xml-apis</artifactId>
            <version>1.4.01</version>
        </dependency>

        <!-- http client -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpmime</artifactId>
            <version>4.5</version>
        </dependency>

        <!-- spring-ws-->
        <dependency>
            <groupId>org.springframework.ws</groupId>
            <artifactId>spring-ws-core</artifactId>
            <version>2.4.0.RELEASE</version>
        </dependency>

        <!-- mail -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-email</artifactId>
            <version>1.4</version>
        </dependency>

        <!-- redis son -->
        <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson</artifactId>
            <version>1.2.0</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.8.1</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.8.1</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.8.1</version>
        </dependency>


        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.4.6</version>
        </dependency>

        <dependency>
            <groupId>org.codehaus.groovy</groupId>
            <artifactId>groovy-all</artifactId>
            <version>2.4.5</version>
        </dependency>


        <!-- es -->
        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch</artifactId>
            <version>2.3.5</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.1.35</version>
        </dependency>


        <!-- log4j2-->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jul-to-slf4j</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>${log4j2.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>${log4j2.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-slf4j-impl</artifactId>
            <version>${log4j2.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-1.2-api</artifactId>
            <version>${log4j2.version}</version>
        </dependency>
        <dependency>
            <groupId>com.lmax</groupId>
            <artifactId>disruptor</artifactId>
            <version>${disruptor.version}</version>
        </dependency>

        <!-- log4j2-->
    </dependencies>

</project>

web.xml：（html等静态文件根据servlet映射规则优先访问，防止被springmvc 拦截）

<?xml version="1.0" encoding="UTF-8"?>
<web-app
        version="3.0"
        xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

<display-name>test-app</display-name>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath*:applicationContext.xml
        </param-value>
    </context-param>

    <!--由Sprng载入的Log4j配置文件位置 -->
    <context-param>
        <param-name>log4jConfigLocation</param-name>
        <param-value>classpath:log4j2.xml</param-value>
    </context-param>

    <!--Spring默认刷新Log4j配置文件的间隔,单位为毫秒 -->
    <context-param>
        <param-name>log4jRefreshInterval</param-name>
        <param-value>60000</param-value>
    </context-param>

    <context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>testapp.root</param-value>
    </context-param>

    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>

    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
        <dispatcher>REQUEST</dispatcher>
        <dispatcher>FORWARD</dispatcher>
    </filter-mapping>

    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>springWeb</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>
    </servlet>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.js</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>springWeb</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>


    <!-- Welcome file lists -->
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>

</web-app>

配置文件：

spring ：applicationContext.xml

<?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"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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-4.1.xsd
       http://www.springframework.org/schema/websocket http://www.springframework.org/schema/websocket/spring-websocket-4.1.xsd
       http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <context:component-scan base-package="websocket.socket"/>
    <mvc:annotation-driven/>
        <!--<bean id="websocket" class="websocket.socket.WebsocketEndPoint"/>-->

        <!--<websocket:handlers>-->
            <!--<websocket:mapping path="/websocket" handler="websocket"/>-->
            <!--<websocket:handshake-interceptors>-->
                <!--<bean class="websocket.socket.HandshakeInterceptor"/>-->
            <!--</websocket:handshake-interceptors>-->
        <!--</websocket:handlers>-->
</beans>

springmvc：spring-mvc.xml

<?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"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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-4.1.xsd
       http://www.springframework.org/schema/websocket http://www.springframework.org/schema/websocket/spring-websocket-4.1.xsd
       http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <context:component-scan base-package="websocket.controller"/>
    <mvc:annotation-driven/>
        <!--<bean id="websocket" class="websocket.socket.WebsocketEndPoint"/>-->

        <!--<websocket:handlers>-->
            <!--<websocket:mapping path="/websocket" handler="websocket"/>-->
            <!--<websocket:handshake-interceptors>-->
                <!--<bean class="websocket.socket.HandshakeInterceptor"/>-->
            <!--</websocket:handshake-interceptors>-->
        <!--</websocket:handlers>-->


    <!-- 对静态资源文件的访问 -->
    <mvc:resources mapping="/images/**" location="/images/" />
</beans>

前端页面 user.html，具体效果可在chrome-console中查看

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>

</body>
<script src="jquery.js"></script>
<script type="text/javascript">
    var ws
    $(function() {
        console.log("abc");
        $.ajax({url:"http://localhost:8080/login/4",success:function(result){
            console.log(result);
            ws = new WebSocket("ws://localhost:8080/myHandler")
            ws.onopen = function () {
                console.log("onpen");
                ws.send("{}");
            }
            ws.onclose = function () {
                console.log("onclose");
            }

            ws.onmessage = function (msg) {
                console.log(msg);
                console.log(msg.data);
            }
        }});
    })
</script>
</html>

controller：（负责用户信息数据的mock存储、消息推送、消息广播测试）

package websocket.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.socket.TextMessage;
import websocket.socket.MyHandler;

import javax.servlet.http.HttpSession;

/**
 * Created by Administrator on 2017/10/16.
 */
@Controller
public class SocketController {

    @Autowired
    @Qualifier("x")
    MyHandler handler;


    @RequestMapping("/login/{userId}")
    public @ResponseBody
    String login(HttpSession session, @PathVariable("userId") Integer userId) {
        System.out.println("登录接口,userId="+userId);
        session.setAttribute("userId", userId);
        System.out.println(session.getAttribute("userId"));

        return "success";
    }

    @RequestMapping("/message")
    public @ResponseBody String sendMessage() {
        boolean hasSend = handler.sendMessageToUser(4, new TextMessage("发送一条小message"));
        System.out.println(hasSend);
        return "message";
    }

    @RequestMapping("/broad")
    public @ResponseBody String broad() {
        boolean hasSend = handler.sendMessageToAllUsers(new TextMessage("发送一条小Broad"));
        System.out.println(hasSend);
        return "broad";
    }

}

websocket注册：WebSocketConfig

package websocket.socket;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
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;

/**
 * Created by Administrator on 2017/10/16.
 */
@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {

    @Autowired
    @Qualifier("x")
    private MyHandler myHandler;

    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        registry.addHandler(myHandler, "/myHandler").addInterceptors(new WebSocketInterceptor());
    }

    @Bean
    public WebSocketHandler myHandler() {
        return new MyHandler();
    }

}

websocket拦截器：WebSocketInterceptor（监听连接建立及握手）

package websocket.socket;

import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.http.server.ServletServerHttpRequest;
import org.springframework.web.socket.WebSocketHandler;

import javax.servlet.http.HttpSession;
import java.util.Map;

/**
 * Created by Administrator on 2017/10/16.
 */
public class WebSocketInterceptor implements  org.springframework.web.socket.server.HandshakeInterceptor {

    @Override
    public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler handler, Map<String, Object> map) throws Exception {
        if (request instanceof ServletServerHttpRequest) {
            ServletServerHttpRequest serverHttpRequest = (ServletServerHttpRequest) request;
            HttpSession session = serverHttpRequest.getServletRequest().getSession();
//            Map parameterMap = serverHttpRequest.getServletRequest().getParameterMap();
//            System.out.println(parameterMap);
            if (session != null) {
                map.put("userId", session.getAttribute("userId"));
            }

        }
        return true;
    }

    @Override
    public void afterHandshake(ServerHttpRequest serverHttpRequest, ServerHttpResponse serverHttpResponse, WebSocketHandler webSocketHandler, Exception e) {

    }
}

处理类：MyHandler

package websocket.socket;

import org.springframework.stereotype.Service;
import org.springframework.web.socket.CloseStatus;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketMessage;
import org.springframework.web.socket.WebSocketSession;
import org.springframework.web.socket.handler.TextWebSocketHandler;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

/**
 * Created by Administrator on 2017/10/16.
 */
@Service("x")
public class MyHandler extends TextWebSocketHandler {
    //在线用户列表
    private static final Map<Integer, WebSocketSession> users;
    //用户标识
    private static final String CLIENT_ID = "userId";

    static {
        users = new HashMap<>();
    }

    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        System.out.println("成功建立连接");
        Integer userId = getClientId(session);
        System.out.println(userId);
        if (userId != null) {
            users.put(userId, session);
            session.sendMessage(new TextMessage("成功建立socket连接"));
            System.out.println(userId);
            System.out.println(session);
        }
    }

    @Override
    public void handleTextMessage(WebSocketSession session, TextMessage message) {
        // ...
        System.out.println(message.getPayload());

        WebSocketMessage message1 = new TextMessage("server:"+message);
        try {
            session.sendMessage(message1);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * 发送信息给指定用户
     * @param clientId
     * @param message
     * @return
     */
    public boolean sendMessageToUser(Integer clientId, TextMessage message) {
        if (users.get(clientId) == null) return false;
        WebSocketSession session = users.get(clientId);
        System.out.println("sendMessage:" + session);
        if (!session.isOpen()) return false;
        try {
            session.sendMessage(message);
        } catch (IOException e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }

    /**
     * 广播信息
     * @param message
     * @return
     */
    public boolean sendMessageToAllUsers(TextMessage message) {
        boolean allSendSuccess = true;
        Set<Integer> clientIds = users.keySet();
        WebSocketSession session = null;
        for (Integer clientId : clientIds) {
            try {
                session = users.get(clientId);
                if (session.isOpen()) {
                    session.sendMessage(message);
                }
            } catch (IOException e) {
                e.printStackTrace();
                allSendSuccess = false;
            }
        }

        return  allSendSuccess;
    }


    @Override
    public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception {
        if (session.isOpen()) {
            session.close();
        }
        System.out.println("连接出错");
        users.remove(getClientId(session));
    }

    @Override
    public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
        System.out.println("连接已关闭：" + status);
        users.remove(getClientId(session));
    }

    @Override
    public boolean supportsPartialMessages() {
        return false;
    }

    /**
     * 获取用户标识
     * @param session
     * @return
     */
    private Integer getClientId(WebSocketSession session) {
        try {
            Integer clientId = (Integer) session.getAttributes().get(CLIENT_ID);
            return clientId;
        } catch (Exception e) {
            return null;
        }
    }
}

消息测试页：http://localhost:8080/user.html

根据单个用户ID推送消息（可修改controller层 message方法中的clientId）：http://localhost:8080/message

广播消息推送给所有用户：http://localhost:8080/broad

spring-websocket 配置 websocket发送消息（群发）

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