Websocket服务器:从不调用Web套接字上的onopen函数

我正在尝试实现一个C#Web套接字服务器,但它给了我一些麻烦.我正在运行一个Web服务器(ASP.NET)来托管带有javascript的页面,而Web套接字服务器则是作为C#控制台应用程序实现的.

我能够检测来自客户端的连接尝试(运行javascript的chrome)以及从客户端检索握手.但是客户端似乎不接受我发回的握手(onopenWeb套接字上的函数永远不会被调用).

我一直在阅读The Web Socket协议,我看不出我做错了什么.下面是一些服务器代码:

Socket listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
IPEndPoint ep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8181);
listener.Bind(ep);
listener.Listen(100);
Console.WriteLine("Wainting for connection...");
Socket socketForClient = listener.Accept();
if (socketForClient.Connected)
{
    Console.WriteLine("Client connected");
    NetworkStream networkStream = new NetworkStream(socketForClient);
    System.IO.StreamWriter streamWriter = new System.IO.StreamWriter(networkStream);
    System.IO.StreamReader streamReader = new System.IO.StreamReader(networkStream);

    //read handshake from client:
    Console.WriteLine("HANDSHAKING...");
    char[] shake = new char[255];
    streamReader.Read(shake, 0, 255);

    string handshake =
       "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" +
       "Upgrade: WebSocket\r\n" +
       "Connection: Upgrade\r\n" +
       "WebSocket-Origin: http://localhost:8080\r\n" +
       "WebSocket-Location: ws://localhost:8181\r\n" +
       "\r\n";

    streamWriter.Write(handshake);
    streamWriter.Flush();

我正在我的localhost上运行端口8080上的Web服务器和端口8181上的Web套接字服务器.

我尝试用不同的编码(ASCII,字节和十六进制)发送握手,但这似乎没有什么区别.连接永远不会完全建立.javascript看起来像这样:

var ws;
var host = 'ws://localhost:8181';
debug("Connecting to " + host + " ...");
try {
 ws = new WebSocket(host);
} catch (err) {
 debug(err, 'error');
}
ws.onopen = function () {
 debug("connected...", 'success');
};
ws.onclose = function () {
 debug("Socket closed!", 'error');
};
ws.onmessage = function (evt) {
 debug('response: ' + evt, 'response');
};

我猜测错误在于C#服务器,因为chrome正在按原样发送信息,但正如所说的那样,onopen函数永远不会被调用.

所以我的问题简而言之: 你们有没有成就过 - 如果是的话,你是怎么做到的？原因:你看到代码中有任何明显的错误(希望不要问太多)

可能这是一个编码问题.这是我写的一个有效的C#服务器:

class Program
{
    static void Main(string[] args)
    {
        var listener = new TcpListener(IPAddress.Loopback, 8181);
        listener.Start();
        using (var client = listener.AcceptTcpClient())
        using (var stream = client.GetStream())
        using (var reader = new StreamReader(stream))
        using (var writer = new StreamWriter(stream))
        {
            writer.WriteLine("HTTP/1.1 101 Web Socket Protocol Handshake");
            writer.WriteLine("Upgrade: WebSocket");
            writer.WriteLine("Connection: Upgrade");
            writer.WriteLine("WebSocket-Origin: http://localhost:8080");
            writer.WriteLine("WebSocket-Location: ws://localhost:8181/websession");
            writer.WriteLine("");
        }
        listener.Stop();
    }
}

并且相应的客户端托管在localhost:8080: