基础版vue连接websocket并做心跳检测

data中需要这些参数

data() {
    return {
      websock: null, //建立的连接
      lockReconnect: false, //是否真正建立连接
      timeout: 28 * 1000, //30秒一次心跳
      timeoutObj: null, //外层心跳倒计时
      serverTimeoutObj: null, //内层心跳检测
      timeoutnum: null //断开 重连倒计时
    };
  },

methods中：

initWebSocket() {
      //初始化weosocket
      const wsuri = "ws://" + "xxxxx" + ":端口号";
      this.websock = new WebSocket(wsuri);
      this.websock.onopen = this.websocketonopen;
      this.websock.onmessage = this.websocketonmessage;
      this.websock.onerror = this.websocketonerror;
      this.websock.onclose = this.websocketclose;
    },

reconnect() {
      //重新连接
      var that = this;
      if (that.lockReconnect) {
        // 是否真正建立连接
        return;
      }
      that.lockReconnect = true;
      //没连接上会一直重连，设置延迟避免请求过多
      that.timeoutnum && clearTimeout(that.timeoutnum);
      // 如果到了这里断开重连的倒计时还有值的话就清除掉
      that.timeoutnum = setTimeout(function() {
        //然后新连接
        that.initWebSocket();
        that.lockReconnect = false;
      }, 5000);
    },

 reset() {
      //重置心跳
      var that = this;
      //清除时间（清除内外两个心跳计时）
      clearTimeout(that.timeoutObj);
      clearTimeout(that.serverTimeoutObj);
      //重启心跳
      that.start();
    },

start() {
      //开启心跳
      var self = this;
      self.timeoutObj && clearTimeout(self.timeoutObj);
      // 如果外层心跳倒计时存在的话，清除掉
      self.serverTimeoutObj && clearTimeout(self.serverTimeoutObj);
      // 如果内层心跳检测倒计时存在的话，清除掉
      self.timeoutObj = setTimeout(function() {
        // 重新赋值重新发送 进行心跳检测
        //这里发送一个心跳，后端收到后，返回一个心跳消息，
        if (self.websock.readyState == 1) {
          //如果连接正常
          // self.websock.send("heartCheck");
        } else {
          //否则重连
          self.reconnect();
        }
        self.serverTimeoutObj = setTimeout(function() {
          // 在三秒一次的心跳检测中如果某个值3秒没响应就关掉这次连接
          //超时关闭
          self.websock.close();
        }, self.timeout);
      }, self.timeout);
      // 3s一次
    },

连接状态判断：

 websocketonopen(e) {
      //连接建立之后执行send方法发送数据
      console.log("成功");
      let actions = { test: "12345" };
      // this.websocketsend(JSON.stringify(actions));
    },
    websocketonerror() {
      //连接建立失败重连
      console.log("失败");
      this.initWebSocket();
    },
    websocketonmessage(e) {
      //数据接收
      const redata = JSON.parse(e.data);
      console.log(redata);
      this.aa = [...this.aa, redata.type];
      this.reset();
    },
    websocketsend(Data) {
      //数据发送
      this.websock.send(Data);
    },
    websocketclose(e) {
      //关闭
      console.log("断开连接", e);
    }

完整代码：

 initWebSocket() {
      //初始化weosocket
      const wsuri = "ws://" + "xxxxx" + ":端口号";
      this.websock = new WebSocket(wsuri);
      this.websock.onopen = this.websocketonopen;
      this.websock.onmessage = this.websocketonmessage;
      this.websock.onerror = this.websocketonerror;
      this.websock.onclose = this.websocketclose;
    },
    reconnect() {
      //重新连接
      var that = this;
      if (that.lockReconnect) {
        // 是否真正建立连接
        return;
      }
      that.lockReconnect = true;
      //没连接上会一直重连，设置延迟避免请求过多
      that.timeoutnum && clearTimeout(that.timeoutnum);
      // 如果到了这里断开重连的倒计时还有值的话就清除掉
      that.timeoutnum = setTimeout(function() {
        //然后新连接
        that.initWebSocket();
        that.lockReconnect = false;
      }, 5000);
    },
    reset() {
      //重置心跳
      var that = this;
      //清除时间（清除内外两个心跳计时）
      clearTimeout(that.timeoutObj);
      clearTimeout(that.serverTimeoutObj);
      //重启心跳
      that.start();
    },
    start() {
      //开启心跳
      var self = this;
      self.timeoutObj && clearTimeout(self.timeoutObj);
      // 如果外层心跳倒计时存在的话，清除掉
      self.serverTimeoutObj && clearTimeout(self.serverTimeoutObj);
      // 如果内层心跳检测倒计时存在的话，清除掉
      self.timeoutObj = setTimeout(function() {
        // 重新赋值重新发送 进行心跳检测
        //这里发送一个心跳，后端收到后，返回一个心跳消息，
        if (self.websock.readyState == 1) {
          //如果连接正常
          // self.websock.send("heartCheck");
        } else {
          //否则重连
          self.reconnect();
        }
        self.serverTimeoutObj = setTimeout(function() {
          // 在三秒一次的心跳检测中如果某个值3秒没响应就关掉这次连接
          //超时关闭
          self.websock.close();
        }, self.timeout);
      }, self.timeout);
      // 3s一次
    },

    websocketonopen(e) {
      //连接建立之后执行send方法发送数据
      console.log("成功");
      let actions = { test: "12345" };
      // this.websocketsend(JSON.stringify(actions));
    },
    websocketonerror() {
      //连接建立失败重连
      console.log("失败");
      this.initWebSocket();
    },
    websocketonmessage(e) {
      //数据接收
      const redata = JSON.parse(e.data);
      console.log(redata);
      this.aa = [...this.aa, redata.type];
      this.reset();
    },
    websocketsend(Data) {
      //数据发送
      this.websock.send(Data);
    },
    websocketclose(e) {
      //关闭
      console.log("断开连接", e);
    }