https://blog.csdn.net/qq_30100043/article/details/53005478
<script src="https://cdn.socket.io/socket.io-1.4.5.js"></script><script type="text/javascript"> ??// var socket = io.connect(‘ws://127.0.0.1:3001‘); ???var socket = io.connect("//127.0.0.1:3001"); ???socket.on(‘news‘, function (data) { ???????console.log(data); ???????alert(data); ???????socket.emit(‘my other event‘, { my: ‘data‘ }); ???});</script>var app = require(‘express‘)();var http = require(‘http‘).Server(app);var io = require(‘socket.io‘)(http);var fs = require(‘fs‘);app.use(function(req, res, next){ ???res.io = io; ???next();});//#默认打开文件app.get(‘/‘, function(req, res){ ???res.sendfile(‘./index.html‘);});io.on(‘connection‘, function (socket) { ???socket.emit(‘news‘, { hello: ‘world1--lala‘ }); ???socket.on(‘my other event‘, function (data) { ???????console.log(data); ???});});// 服务器侦听在sockettest.com的3000端口上http.listen(3001, function(){ ???//# 输出到标准输出 ???console.log(‘:3001‘);});nodejs websocket
原文地址：https://www.cnblogs.com/cnchengv/p/8632496.html