HttpListener BeginGetContext突然停止

我有一个HttpListener，我不想在每次请求后关闭它，所以我使用BeginGetContext异步检索请求。只是工作不正常。

Main正确启动，为StartListening（）函数查找并分配我的IP地址。然而，当我在StartListening（）中到达listener.BeginGetContext(new AsyncCallback(OnRequest), listener);时，它会跳到Main中的Response.StartListening(ips);，然后停止。我不知道为什么。有什么提示吗？

这是我迄今为止所拥有的。

这就是我开始倾听请求的地方：

 public static void StartListening(string[] prefixes)
    {
        HttpListener listener = new HttpListener();
        if (prefixes == null || prefixes.Length == 0)
            throw new ArgumentException("prefixes");
        foreach (string s in prefixes)
        {
            listener.Prefixes.Add("http://" + s + "/");
        }
        listener.Start();
        Console.WriteLine("'nListening...");
        listener.BeginGetContext(new AsyncCallback(OnRequest), listener);
    }

这里是我处理请求的地方：

public static void OnRequest(IAsyncResult result)
    {
        HttpListener listener = (HttpListener) result.AsyncState;
        HttpListenerContext context = listener.EndGetContext(result);

        string url = context.Request.RawUrl;
        string[] split = url.Split('/');
        int lastIndex = split.Length - 1;
        int x, y, z;
        x = Convert.ToInt32(split[lastIndex]);
        y = Convert.ToInt32(split[lastIndex - 1]);
        z = Convert.ToInt32(split[lastIndex - 2]);
        HttpListenerResponse response = context.Response;
        Regex imageRegex = new Regex(@"SomethingSomething");
        var matches = imageRegex.Match(url);
        if (matches.Success)
        {
            string path = @"C:'SomeDir";
            path = String.Format(path, matches.Groups[1].Captures[0],
                                       matches.Groups[2].Captures[0],
                                       matches.Groups[3].Captures[0]);
            // Load the image
            Bitmap bm = new Bitmap(path);
            MemoryStream bmStream = new MemoryStream();
            bm.Save(bmStream, ImageFormat.Png);
            byte[] buffer = bmStream.ToArray();
            // Get a response stream and write the response to it.
            response.ContentLength64 = bmStream.Length;
            response.ContentType = "image/png";
            response.KeepAlive = true;
            Stream output = response.OutputStream;
            output.Write(buffer, 0, buffer.Length);
            // You must close the output stream.
            output.Close();
            listener.Stop();
        }
        response.Close();
        listener.BeginGetContext(new AsyncCallback(OnRequest), listener);
    }

这是我的主要：

class Program
{
    static void Main(string[] args)
    {
        string name = (args.Length < 1) ? Dns.GetHostName() : args[0];
        try
        {   //Find the IPv4 address 
            IPAddress[] addrs = Array.FindAll(Dns.GetHostEntry(string.Empty).AddressList,
                a => a.AddressFamily == AddressFamily.InterNetwork);
            Console.WriteLine("Your IP address is: ");
            foreach (IPAddress addr in addrs)
                Console.WriteLine("{0} {1}", name, addr);
            //Automatically set the IP address
            string[] ips = addrs.Select(ip => ip.ToString()).ToArray();
            Response.StartListening(ips);
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
        }
    }
}

class Program
{
    public static ManualResetEvent ServerManualResetEvent;
    static void Main(string[] args)
    {
        try
        {
            // your code to start the server
            ServerManualResetEvent = new ManualResetEvent(false);
            ServerManualResetEvent.WaitOne();
        }
        catch
        {
            // your catch code
        }
    }
}

Program.ServerManualResetEvent.Set();