npm install sockjs-client
npm install stompjs　

import SockJS from  ‘sockjs-client‘;
import  Stomp from ‘stompjs‘;
export default {
    data(){
        return {
            stompClient:‘‘,
            timer:‘‘,
        }
    },
    methods:{
        initWebSocket() {
            this.connection();
            let that= this;
            // 断开重连机制,尝试发送消息,捕获异常发生时重连
            this.timer = setInterval(() => {
                try {
                    that.stompClient.send("test");
                } catch (err) {
                    console.log("断线了: " + err);
                    that.connection();
                }
            }, 5000);
        },  
        connection() {
            // 建立连接对象
            let socket = new SockJS(‘http://10.10.91.4:8081/ws‘);
            // 获取STOMP子协议的客户端对象
            this.stompClient = Stomp.over(socket);
            // 定义客户端的认证信息,按需求配置
            let headers = {
                Authorization:‘‘
            }
            // 向服务器发起websocket连接
            this.stompClient.connect(headers,() => {
                this.stompClient.subscribe(‘/topic/public‘, (msg) => { // 订阅服务端提供的某个topic
                    console.log(‘广播成功‘)
                    console.log(msg);  // msg.body存放的是服务端发送给我们的信息
                },headers);
                this.stompClient.send("/app/chat.addUser",
                    headers,
                    JSON.stringify({sender: ‘‘,chatType: ‘JOIN‘}),
                )   //用户加入接口
            }, (err) => {
                // 连接发生错误时的处理函数
                console.log(‘失败‘)
                console.log(err);
            });
        },    //连接 后台
        disconnect() {
            if (this.stompClient) {
                this.stompClient.disconnect();
            }
        },  // 断开连接
    },
    mounted(){
        this.initWebSocket();
    },
    beforeDestroy: function () {
        // 页面离开时断开连接,清除定时器
        this.disconnect();
        clearInterval(this.timer);
    }
}