vue websocket封装到公共方法，子组件引用

1.**publicMethods.js**
//websocket 
export function openSocket(uuid) {
    let env = process.env.VUE_APP_WEBSOCKET;
    let url = `ws://${env}/tdmsWs/webSocket/${uuid}`;
    let socket = new WebSocket(url);
    // let data;
    //打开事件
    socket.onopen = () => {
        console.log("websocket已打开");
    };
    // //获得消息事件
    // socket.onmessage = (msg) => {
    //     console.log(msg.data, "websocket123456")
    // };
    //关闭事件  (websocket可在服务端配置连接超时时间)
    socket.onclose = function (e) {
        console.log("websocket已关闭");
        //打印错误信息
        console.log(
            "websocket 断开: " + e.code + " " + e.reason + " " + e.wasClean
        );
        console.log(e);
    };
    //发生了错误事件
    socket.onerror = function () {
        console.log("websocket发生了错误");
        //连接建立失败重连
        openSocket(uuid);
    };
    return socket;
}
 
2. **main.js 挂载公共方法**
 import {openSocket} from "./PublicMethod";
 Vue.prototype.$openSocket = openSocket;

3.**子组件应用**
  this.$openSocket(this.uuid).onmessage = (msg) => {
        console.log("收到服务器内容", msg.data);
   };