在以 apache 作为反向代理的服务器上使用带有 nodejs 的 socket.io [英] Using socket.io with nodejs on a server with apache as a reverse proxy
问题描述
我正在尝试使用 Node.js 和 Socket.IO 来促进浏览器和客户端之间的消息传递，遵循 指南.
I'm attempting to use Node.js with Socket.IO to faciliate messaging between the browser and client, following the guide.
但是，我必须在 Apache 后面设置 Node 反向代理.因此，我使用的是 example.com/nodejs/，而不是 node 的 example.com:8080.
However, I had to setup Node reverse-proxied behind Apache. So, instead of example.com:8080 for node, I'm using example.com/nodejs/.
这似乎导致 Socket.IO 失去了自我意识.这是我的节点应用
This seems to cause Socket.IO to lose sense of itself. Here's my node app
var io = require('socket.io').listen(8080);
// this has to be here, otherwise the client tries to
// send events to example.com/socket.io instead of example.com/nodejs/socket.io
io.set( 'resource', '/nodejs/socket.io' );
io.sockets.on('connection', function (socket) {
socket.emit('bar', { one: '1'});
socket.on('foo', function( data )
{
console.log( data );
});
});
这是我的客户端文件的样子
And here's what my client file looks like
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Socket.IO test</title>
<script src="http://example.com/nodejs/socket.io/socket.io.js"></script>
<script>
var socket = io.connect('http://example.com/nodejs/');
console.log( socket );
socket.on( 'bar', function (data)
{
console.log(data);
socket.emit( 'foo', {bar:'baz'} );
});
socket.emit('foo',{bar:'baz'});
</script>
</head>
<body>
<p id="hello">Hello World</p>
</body>
</html>
这里的问题是对 http://example.com/的脚本引用nodejs/socket.io/socket.io.js.它不会返回预期的 javascript 内容——而是返回欢迎使用 socket.io"，就像我点击了 http://example.com/nodejs/.
The problem here is the script reference to http://example.com/nodejs/socket.io/socket.io.js. It doesn't return the expected javasscript content - instead it returns "Welcome to socket.io" as if I hit http://example.com/nodejs/.
知道如何使这项工作成功吗?
Any idea how I can make this work?
推荐答案
这最终是一个多管齐下的解决方案.
This ended up being a multi-pronged solutions.
首先，在服务器端，我必须像这样设置端点
First, on the server end of things, I had to set up the endpoints like this
var io = require('socket.io').listen(8080);
var rootSockets = io.of('/nodejs').on('connection', function(socket)
{
// stuff
});
var otherSockets = io.of('nodejs/other').on('connection', function(socket)
{
// stuff
});
然后，在客户端，正确连接看起来像这样
Then, on the client-side, to properly connect looks like this
var socket = io.connect(
'http://example.com/nodejs/'
, {resource: 'nodejs/socket.io'}
);
// The usage of .of() is important
socket.of('/nodejs').on( 'event', function(){} );
socket.of('/nodejs/other').on( 'event', function(){} );
在这之后，一切都奏效了.请记住，在此服务器上，Apache 在内部将 example.com/nodejs 代理到端口 8080.
After this, it all worked. Remember, on this server Apache is proxying example.com/nodejs to port 8080 internally.
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