Question

我一直在为我的应用程序编写服务器。根据建议，我决定使用HttpListener来监听async方法中的传入连接。我目前的代码如下：

        public static async void StartServerAsync()
        {
            while (true)
            {
                Console.WriteLine("Waiting for client.. ");
                var context = await listener.GetContextAsync();
                Console.WriteLine("Client connected!");
// ReSharper disable once CSharpWarnings::CS4014
                Task.Factory.StartNew(() => ProcessClient(context));
            }
            listener.Close();
        }

此方法以此开始：

public static void ServerBoot()
{
    listener.Prefixes.Add("http://localhost:1000/");
    listener.Start();
    StartServerAsync();
}

ProcessClient()方法如下：

private static void ProcessClient(HttpListenerContext context)
{
    try
    {
        var request = context.Request;
        string response;
        using (var reader = new StreamReader(request.InputStream, request.ContentEncoding))
        {
            response = reader.ReadToEnd();
        }
        Console.WriteLine("Got command: {0}", response);
    }
    catch (WebException)
    {
        Console.WriteLine("Error reading string, closing..");
        return;
    }
}

现在它只应该发布字符串。但是，当我使用以下代码运行客户端时：

                Console.WriteLine(" -- Bagrut Client -- ");
                Console.Write("Enter IP of server to connect to: ");
// ReSharper disable once AssignNullToNotNullAttribute
                var ip = Console.ReadLine();
                WebClient client = new WebClient();
                var response = client.UploadString(ip, "query");
                Console.WriteLine("Type of response is {0}", response);

服务器什么都不做。正如您在ProcessClient()中所看到的，以及在服务器循环本身中，当客户端连接时，它至少应该说某些。但是，当代码运行时，没有任何反应。我做错了吗？

编辑：新代码：

        public static void ServerBoot()
        {
            HttpListener listener = new HttpListener();
            listener.Prefixes.Add("http://localhost:1337/");
            listener.Start();
            StartServerAsync(listener).ContinueWith(task => { });
        }
        private static void ProcessClient(HttpListenerContext context)
        {
            try
            {
                var request = context.Request;
                string response;
                using (var reader = new StreamReader(request.InputStream, request.ContentEncoding))
                {
                    response = reader.ReadToEnd();
                }
                Console.WriteLine("Got command: {0}", response);
            }
            catch (WebException)
            {
                Console.WriteLine("Error reading string, closing..");
                return;
            }
        }
        private static async Task StartServerAsync(HttpListener listener)
        {
            while (true)
            {
                Console.WriteLine("Waiting for client.. ");
                var context = await listener.GetContextAsync();
                Console.WriteLine("Client connected!");
// ReSharper disable once CSharpWarnings::CS4014
                Task.Factory.StartNew(() => StartServerAsync(listener));
                ProcessClient(context);
                await StartServerAsync(listener);
            }
            listener.Close();
        }

如何使用HttpListener正确收听

0 个答案: