webSocket使用心跳包实现断线重连

首先new一个webscoket的连接

let noticeSocketLink = new WebSocket(‘webSocket的地址’)

这里是连接成功之后的操作

linkNoticeWebsocket(){

        noticeSocketLink.onopen = ()=>{

    //在连接成功打开的时候调用断线重连的函数,传入websocket对象 

          webCloseLink(noticeSocketLink)

        }

        this.noticeSocketLink.onmessage = res => {
          console.log("res")
       }

        noticeSocketLink.onclose = res => {

          console.log("websocket is closed")

        }

},

//断开连接,断线重连的函数

webCloseLink(WebSocketId){
  WebSocketId.send("心跳包内容")
  // 每个15秒发送一次心跳包
  let hb = setInterval(()=>{
    WebSocketId.send("心跳包内容")
    // 检测到websocket连接断开
    if(WebSocketId.readyState == 2 || WebSocketId.readyState == 3){
      clearInterval(this.hb)
      let i = 1
      let myVar = setInterval(()=>{
        if(WebSocketId.readyState == 2 || WebSocketId.readyState == 3){
          // 重新new一个websocket的连接
          this.noticeSocketLink = new WebSocket(WebSocketId.url);
          WebSocketId = this.noticeSocketLink;
          if(i == 5){
            clearInterval(myVar);
            // location.reload();
            return
          }
          i++
        }else if(WebSocketId.readyState == 0){

        }else if(WebSocketId.readyState == 1){ // websocket重连成功
          this.linkNoticeWebsocket();
          clearInterval(hb)
          clearInterval(myVar)
        }
      },4*1000)
    }
  }, 15000)
},

 

转载于:https://www.cnblogs.com/qisimx/p/10518355.html

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