你好，当我的代码从 IP 监听时，我正在使用 c# 使用 tcp ip 通信然后它给我错误消息请求的地址在其上下文中无效。这是代码。

 TcpListener server = null;
        try
        {
            // Set the TcpListener on port 13000.
            Int32 port = 5555;
            IPAddress localAddr = IPAddress.Parse("10.3.0.234");

            // TcpListener server = new TcpListener(port);
            server = new TcpListener(localAddr, port);

            // Start listening for client requests.
            server.Start();

            // Buffer for reading data
            Byte[] bytes = new Byte[256];
            String data = null;

            // Enter the listening loop.
            while (true)
            {
                Console.Write("Waiting for a connection... ");

                // Perform a blocking call to accept requests.
                // You could also user server.AcceptSocket() here.
                TcpClient client = server.AcceptTcpClient();
                Console.WriteLine("Connected!");

                data = null;

                // Get a stream object for reading and writing
                NetworkStream stream = client.GetStream();

                int i;

                // Loop to receive all the data sent by the client.
                while ((i = stream.Read(bytes, 0, bytes.Length)) != 0)
                {
                    // Translate data bytes to a ASCII string.
                    data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
                    Console.WriteLine("Received: {0}", data);

                    // Process the data sent by the client.
                    data = data.ToUpper();

                    byte[] msg = System.Text.Encoding.ASCII.GetBytes(data);
                    Console.WriteLine("Sent Data:" + msg);
                    // Send back a response.
                  //  stream.Write(msg, 0, msg.Length);
                 //   Console.WriteLine("Sent: {0}", data);
                }

                // Shutdown and end connection
                client.Close();
            }
        }
        catch (SocketException e)
        {
            Console.WriteLine("SocketException: {0}", e);
        }
        finally
        {
            // Stop listening for new clients.
            server.Stop();
        }

实际上这个ip是在机器发送结果的机器上配置的。实际上我已经看到很多相同问题的答案，但我不知道在哪里更改 IP 地址。任何人都可以通过编写代码如何通过 tcp ip 协议(protocol)与机器通信来给我答案谢谢。

最佳答案

基本上，错误

The requested address is not valid in its context

表示给定的 IP 地址 未被您机器上的任何网络接口(interface)使用。简而言之，您可能只需要使用 IPAddress.Any

例子

server = new TcpListener(IPAddress.Any, port);

进一步阅读

TcpListener Constructor (IPAddress, Int32)

Initializes a new instance of the TcpListener class that listens for incoming connection attempts on the specified local IP address and port number. Remarks If you do not care which local address is assigned, specify IPAddress.Any for the localaddr parameter, and the underlying service provider will assign the most appropriate network address

IPAddress.Any

Provides an IP address that indicates that the server must listen for client activity on all network interfaces.

关于c# - 当从其他机器监听数据时，请求的地址在其上下文中无效，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50461930/