Question

最近，我开始学习c＃中的Tcp / ip套接字，因此我观看了教程并在线阅读了有关内容。我按照教程进行操作，制作了客户端服务器应用程序，该应用程序将简单文本发送到同一网络上的服务器。我试图“升级”并使客户端与通过服务器在不同网络上的其他客户端通信。但是现在服务器无法开始说“请求的地址在其上下文中无效”。

First was server running as localhost, but now when I want to clients that are in different networks communicate through server , server needs to run on my ip address so other client in different network could connect.  I did IPAddress ip = IPAddress.Parse("my IP"); and  TcpListener  server = new TcpListener(ip, 10000); I tried using different ports but its still the same. 


This is what exceptions tells me 
 at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
   at System.Net.Sockets.Socket.Bind(EndPoint localEP)
   at System.Net.Sockets.TcpListener.Start(Int32 backlog)
   at System.Net.Sockets.TcpListener.Start()

 IPAddress ip = IPAddress.Parse("192.168.1.5"); //Mock IP

            TcpListener  server = new TcpListener(ip, 8080);


            TcpClient client = default(TcpClient); 
            TcpClient client2 = default(TcpClient);

            try
            {
                server.Start();
                Console.WriteLine("Server started...");


            }
            catch(Exception ex)
            {
                Console.WriteLine("Server failed to start... {0}",ex.ToString());
                Console.Read();

            }

            while (true)
            {
                client = server.AcceptTcpClient();

               client2 = server.AcceptTcpClient();

                byte[] receivedBuffer = new byte[1000]; 

                byte[] receivedBuffer2 =  new byte[1000];

                NetworkStream stream = client.GetStream(); 

                NetworkStream stream2 = client2.GetStream();

                stream.Read(receivedBuffer, 0, receivedBuffer.Length); 

                stream2.Read(receivedBuffer2, 0, receivedBuffer2.Length);

                StringBuilder message = new StringBuilder();     
                foreach (byte b in receivedBuffer) 
                {
                    if (b.Equals(126))         
                    {
                        break;
                    }
                    else
                    {
                        message.Append(Convert.ToChar(b).ToString());
                    }
                }
                StringBuilder message2 = new StringBuilder();
                foreach (byte g in receivedBuffer2)
                {
                    if (g.Equals(126))
                    {
                        break;
                    }
                    else
                    {
                        message2.Append(g);
                    }
                }
                //string message = Encoding.ASCII.GetString(receivedBuffer, 0, receivedBuffer.Length);

                Console.WriteLine(message.ToString() + message.Length);
                Console.WriteLine(message2.ToString() +message2.Length);

Answer 1

错误消息The requested address is not valid in its context表示您使用的IP地址未绑定到计算机上的任何网络接口。通常，您不想对您监听的特定IP地址进行硬编码（例如，如果您的计算机通过DHCP获得的IP地址可能会更改）。

更好的方法是使用IPAddress.Any来监听机器上可用的所有IP地址（即网络接口）。

服务器给出异常，无法启动

1 个答案: