npm install -s socket.io
npm install -s vue-socket.io
npm install -s socket.io-client

var sever=require('http').createServer();
var io=require('socket.io')(sever)

io.on('connection', function (socket) {
  socket.on('login',function(data){ //接收連接中的login事件
    console.log(data);
    io.emit('loginmsg','你發(fā)過(guò)來(lái)的數(shù)據(jù)是：'+data) //發(fā)送回去 事件名為loginmsg
   })

})
console.log('socket端口：8000');
sever.listen(8000)

script{ "server": "node sever/app.js"}

import VueSocketio from 'vue-socket.io';
import socketio from 'socket.io-client';
Vue.use(VueSocketio, socketio('ws://127.0.0.1:8000'));//與websocket服務(wù)端鏈接

<template>
  <div>
    <div> 
      <input type="text" v-model="msg">
      <button @click='Login'>向8000端口發(fā)送數(shù)據(jù)</button>
      {{backdata}}
    </div>

  </div>
</template>
<script>
export default{
  data:function (){
    return {
      msg:"aaaa",
      backdata:'',
    }
  },
  sockets:{ //在此接收又服務(wù)器發(fā)送過(guò)來(lái)的數(shù)據(jù) ps：注意此處的方法名要與服務(wù)器的發(fā)送的事件保持一致才能接收到
   connect:function() {      //與ws:127.0.0.1:8000連接后回調(diào)
    console.log('連接成功');
   },
   loginmsg:function(value) {
    console.log(value);//監(jiān)聽(tīng)login(后端向前端emit login的回調(diào))
    this.backdata=value;
   }
  },
  methods:{
    Login(){
      this.$socket.emit('login',this.msg);
    }
  }
   
 }
</script>