Vue中使用websocket

vue

<template>

  <div class="test">websocket demo</div>
</template>

<script>

export default {

data() {

return {

websock: null,

}

},

    created(){ //页面刚进入时开启长连接

this.initWebSocket()

},
    destroyed: function() {//页面销毁时关闭长连接
      this.websocketclose();

    },

    methods: { 

      initWebSocket(){ //初始化weosocket

 

        let wsuri = "ws://echo.websocket.org/";

 

        this.websock = new WebSocket(wsuri);

 

        this.websock.onopen = this.websocketonopen;

 

        this.websock.onerror = this.websocketonerror;

 

        this.websock.onmessage = this.websocketonmessage;

 

        this.websock.onclose = this.websocketclose;

       }, 

      websocketonopen() {
        console.log("WebSocket连接成功");
      },

      websocketonerror(e) { //错误
       console.log("WebSocket连接发生错误");
      },

      websocketonmessage(e){ //数据接收 
        const redata = JSON.parse(e.data);
         //注意:长连接我们是后台直接1秒推送一条数据,
//但是点击某个列表时,会发送给后台一个标识,后台根据此标识返回相对应的数据,
//这个时候数据就只能从一个出口出,所以让后台加了一个键,例如键为1时,是每隔1秒推送的数据,为2时是发送标识后再推送的数据,以作区分
        console.log(redata.value);
      },

      websocketsend(agentData){//数据发送
        this.websock.send(agentData);
      },

      websocketclose(e){ //关闭
        console.log("connection closed (" + e.code + ")");
     },
   },
  }
</script>

 

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