简单的nodeJS示例不适用于socket.io
一整天都在努力尝试使用 socket.io 使这个简单的示例正常工作。我最初在 Windows 7 上尝试使用 Cygwin。此后也在 OS X 上尝试过，结果相同。
运行脚本时，它显示了这一点...
2 May 20:57:47 - socket.io ready - accepting connections
但是访问index.html页面并没有显示客户端已连接。
index.html
<html>
<head>
<script type="text/javascript" src="socket.io.js"></script>
<script type="text/javascript">
var socket = new io.Socket('localhost',{'port':8090});
socket.connect();
socket.on('connect', function(){
console.log('connected');
socket.send('hi!');
});
socket.on('message', function(data){
console.log('message recived: ' + data);
});
socket.on('disconnect', function(){
console.log('disconected');
});
</script>
</head>
<body></body>
</html>
server.js
var http = require('http'), io = require('socket.io'),
server = http.createServer(function(req, res){
res.writeHead(200, {'Content-Type': 'text/html'});
res.end('<h1>Hello world</h1>');
});
server.listen(8090);
var socket = io.listen(server);
socket.on('connection', function(client){
console.log('client connected');
client.on('message', function(){
console.log('message arrive');
client.send('some message');
});
client.on('disconnect', function(){
console.log('connection closed');
});
});
关于我可能做错了什么有什么想法吗？没有显示任何控制台消息。值得注意的是，当我使用 Firebug 查看 index.html 页面时，没有嵌入任何脚本，这很奇怪......不知道是什么原因造成的。
Have been struggling all day trying to make this simple example work using socket.io. I've tried initially on Windows 7 with Cygwin. Have since also tried on OS X, with the same result.
When running the script, it shows this...
2 May 20:57:47 - socket.io ready - accepting connections
But visiting the index.html page doesnt show a client has even connected.
index.html
<html>
<head>
<script type="text/javascript" src="socket.io.js"></script>
<script type="text/javascript">
var socket = new io.Socket('localhost',{'port':8090});
socket.connect();
socket.on('connect', function(){
console.log('connected');
socket.send('hi!');
});
socket.on('message', function(data){
console.log('message recived: ' + data);
});
socket.on('disconnect', function(){
console.log('disconected');
});
</script>
</head>
<body></body>
</html>
server.js
var http = require('http'), io = require('socket.io'),
server = http.createServer(function(req, res){
res.writeHead(200, {'Content-Type': 'text/html'});
res.end('<h1>Hello world</h1>');
});
server.listen(8090);
var socket = io.listen(server);
socket.on('connection', function(client){
console.log('client connected');
client.on('message', function(){
console.log('message arrive');
client.send('some message');
});
client.on('disconnect', function(){
console.log('connection closed');
});
});
Any ideas on what I could be doing wrong? No console messages whatsoever are being displayed. Notably, when i use Firebug to look at the index.html page, no scripts are being embedded, which is odd..Not sure what could be causing that.
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您没有在index.html 文件中正确加载socket.io 库。试试这个：
You're not loading the socket.io library properly in your index.html file. Try this:
您没有提供 socket.io.js （或 flash 文件）。
我建议使用 CDN：
或使用 < a href="http://expressjs.com/" rel="noreferrer">express 来提供 socket.io.js 文件。
编辑：
错误实际上仔细观察你也没有提供index.html
再次表达可以工作但对于简单的例子：
You're not serving up socket.io.js (or the flash file).
I'd recomend using the CDN:
<script src="http://cdn.socket.io/stable/socket.io.js"></script>or alternatively use express to serve the socket.io.js file.
edit:
err actually looking closer you're also not serving up index.html
again express could work but for the simple example:
在客户端使用它作为路径！
Use this on the client side as the path !
是的，并评论以下行：
yes, and comment the following line: