配置webstocket--vue2实现

封装WebStocket.js工具类

import { Notification } from "element-ui";
import { getToken } from '@/utils/auth';

let count = 0;// 记录计数
let lockReconnect = false;//避免ws重复连接
let ws = null;// 判断当前浏览器是否支持WebSocket
let wstoken = getToken()
let server = '';
if (wstoken) {
    server = `服务器地址`;
}
// 监听窗口关闭事件，当窗口关闭时，主动去关闭websocket连接，防止连接还没断开就关闭窗口，server端会抛异常。
window.onbeforeunload = function () {
    if (ws && ws.readyState === WebSocket.OPEN) {
        ws.onclose();
    }
};
// 重连
let reconnect = (server) => {
    if (count >= 5) return console.log("超出重连次数！");
    if (lockReconnect) return false;
    lockReconnect = true;
    setTimeout(function () {     //没连接上会一直重连，设置延迟避免请求过多
        createWebSocket(server);
        lockReconnect = false;
        count++;
    }, 5000);
};
let createWebSocket = (server) => {
    return new Promise((resolve, reject) => {
        if (ws && ws.readyState === WebSocket.OPEN) {
            return resolve();
        }
        try {
            if ('WebSocket' in window) {
                ws = new WebSocket(server);
            } else {
                Notification({ message: "当前浏览器不支持websocket协议,建议使用现代浏览器", type: "success" });
                return reject("WebSocket 连接失败：浏览器不支持 WebSocket 协议");
            }
            initEventHandle();
            resolve();
        } catch (e) {
            console.log("捕获异常", e);
            // reject(e);
        }
    });
};
// 初始化事件函数
let initEventHandle = () => {
    // 连接报错
    ws.onerror = function (evt, e) {
        console.log("[onerror]");

        reconnect(server)
    };
    // 连接关闭
    ws.onclose = function (evt) {
        console.log("[onclose]");

        console.log("连接关闭---" + new Date().toLocaleTimeString());
        reconnect(server)
    };
    // 链接成功
    ws.onopen = function (evt) {
        console.log("[open]");
        heartCheck.reset().start();// 心跳检测重置
        count = 0;// 重置重连次数
    };
    // 接受数据
    ws.onmessage = function (evt) {// 如果获取到消息，心跳检测重置
        console.log("内容：", evt)
        heartCheck.reset().start();// 拿到任何消息都说明当前连接是正常的
        let eventData = undefined;
        try {
            // handMsg(evt.data)
            eventData = JSON.parse(evt.data);
            handMsg(eventData)
        } catch (e) {
            console.log("捕获异常: 当前返回的数据不能解析;");
            console.log("内容：" + evt.data)
        }
    };
};
// 心跳检测
const heartCheck = {
    timeout: 25000,        // 设置心跳时间
    timeoutObj: null,
    serverTimeoutObj: null,
    reset: function () {
        clearTimeout(this.timeoutObj);
        clearTimeout(this.serverTimeoutObj);
        return this;
    },
    start: function () {
        const self = this;
        this.timeoutObj = setTimeout(function () {
            // 这里发送一个心跳，后端收到后，返回一个心跳消息，onmessage拿到返回的心跳就说明连接正常
            ws.send("ping--------------Ping");
            self.serverTimeoutObj = setTimeout(function () {
                // 如果超过一定时间还没重置，说明后端主动断开了
                // 如果onclose会执行reconnect，我们执行ws.close()就行了.如果直接执行reconnect 会触发onclose导致重连两次
                ws.close();
            }, self.timeout)
        }, self.timeout)
    }
};
// 处理消息
let handMsg = (eventData) => {
    console.log(eventData, '消息')
    console.log(ws.readyState === WebSocket.OPEN)
    if (ws.readyState === WebSocket.OPEN) {
        let WebSocketdata = eventData
        console.log(WebSocketdata, 'WebSocketdataWebSocketdata________________');
        if (WebSocketdata.code) {
        _bus.$emit('echart', WebSocketdata);
        }else{
            _bus.$emit('message', WebSocketdata);
        }
        // _bus.$emit('acc', WebSocketdata);

    }
};
let _bus = null;
let startWebSocket = (bus) => {
    _bus = bus;
    return () => {
        createWebSocket(server)
    }
};
export default { startWebSocket }

使用工具类进行数据传输

import moudelWebSocket from "@/utils/webSocket.js";
data() {
    return {
      $eventBus: null,
      busvalue: {},
    }
  },
  created() {
    this.$eventBus = new Vue();
  },
  methods: {
    moudelweb() {
      //启动连接
      moudelWebSocket.startWebSocket(this.$eventBus)();

      //监听数据
      this.$eventBus.$on("echart", (WebSocketdata) => {
        this.busvalue = WebSocketdata.entity[0]
      });
      this.$eventBus.$on("message", (WebSocketdata) => {
        this.Suggestiontext = WebSocketdata
      });
    },