WebSocketConfig.java

package com.yizhen.config;

import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;
import org.springframework.web.socket.server.standard.ServerEndpointExporter;

/**
 * Created by 廖師兄
 * 2017-07-30 23:17
 */
@Component
public class WebSocketConfig {

    @Bean
    public ServerEndpointExporter serverEndpointExporter() {
        return new ServerEndpointExporter();
    }
}
 

WebSocket.java

package com.yizhen.service;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.websocket.OnClose;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;
import java.util.concurrent.CopyOnWriteArraySet;

/**
 * Created by 廖師兄
 * 2017-07-30 23:19
 */
@Component
@ServerEndpoint("/webSocket")
@Slf4j
public class WebSocket {

    private Session session;

    private static CopyOnWriteArraySet<WebSocket> webSocketSet = new CopyOnWriteArraySet<>();

    @OnOpen
    public void onOpen(Session session) {
        this.session = session;
        webSocketSet.add(this);
        log.info("【websocket訊息】有新的連線, 總數:{}", webSocketSet.size());
    }

    @OnClose
    public void onClose() {
        webSocketSet.remove(this);
        log.info("【websocket訊息】連線斷開, 總數:{}", webSocketSet.size());
    }

    @OnMessage
    public void onMessage(String message) {
        log.info("【websocket訊息】收到客戶端發來的訊息:{}", message);
    }

    public void sendMessage(String message) {
        for (WebSocket webSocket: webSocketSet) {
            log.info("【websocket訊息】廣播訊息, message={}", message);
            try {
                webSocket.session.getBasicRemote().sendText(message);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

}
 

需要訊息提示的介面：

 <script  type="text/javascript">
        var websocket = null;
        if('WebSocket' in window) {
            websocket = new WebSocket('ws://bgyzuishuai.s1.natapp.cc/webSocket');
        }else {
            alert('該瀏覽器不支援訂單提醒!');
        }

        websocket.onopen = function (event) {
            console.log('建立連線');
        }

        websocket.onclose = function (event) {
            console.log('連線關閉');
        }

        websocket.onmessage = function (event) {
            console.log('收到訊息:' + event.data)
            //彈窗提醒, 播放音樂
            $('#dingdanxiaoxi').modal('show');

            document.getElementById('notice').play();
        }

        websocket.onerror = function () {
            alert('websocket通訊發生錯誤！');
        }

        window.onbeforeunload = function () {
            websocket.close();
        }

    </script>
 

pom：

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>

最後@autowired   Websocket

使用websocket.sendMessage()傳送訊息