原生nodejs使用websocket

npm ?install ?ws

var WebSocketServer = require(‘ws‘).Server,wss = new WebSocketServer({ port: 8080 });wss.on(‘connection‘, function (ws) {console.log(‘client connected‘);ws.on(‘message‘, function (message) { ???console.log(message);});});

<script>var ws = new WebSocket("ws://localhost:8080");ws.onopen = function (e) { ???console.log(‘Connection to server opened‘); ???sendMessage();}function sendMessage() { ???ws.send(‘hello‘);}</script>