socket.io用express来更新DOM中的variables

这是testing案例…

app.js

var express = require('express'), http = require('http'), //other variables var app = express(); var server = http.createServer(app); var io = require("socket.io").listen(server) io.sockets.on('connection', function (socket) { socket.emit('news', { hello: 'world' }); }); 

html_index.js

 $(document).ready(function() { var socket = io.connect(); socket.on('news', function (data) { console.log(data); }); }); 

我得到这个错误

 WebSocket connection to 'ws://localhost:26000/socket.io/1/websocket/%3Ch2%3Efile%20not%20found!%20error%20404!%3C/h2%3E' failed: WebSocket is closed before the connection is established. socket.io.js:2438 WS.close socket.io.js:2438 Socket.onDisconnect socket.io.js:1967 Transport.onDisconnect socket.io.js:1362 Transport.onClose socket.io.js:1456 (anonymous function) 

我在用着

 express 3 socket.io 0.9 nodejs 0.10 

Answer 1

问题是港口

这是解决scheme

 var server = app.listen(26000, function(){ //instead of var server = http.createServer(app); console.log("Express server listening on port %d in %s mode", app.get('port'), app.settings.env); }); //SOCKET.IO var io = require("socket.io").listen(server) io.sockets.on('connection', function (socket) { socket.emit('news', { hello: 'world' }); });