C＃ - 发送，reciving，然后再通过套接字发送

我和我的朋友正在两台不同的计算机上制作一个基本的客户端/服务器应用程序。我们正在尝试做的：C＃ - 发送，reciving，然后再通过套接字发送

1.I送他一个字符串（服务器）

2他送我回另一个字符串，

我编辑它并将其发回。

但每次我们到了第3部分，他不recive什么我的软件只是停止工作，并通过调试我结束了

"{"A request to send or receive data was disallowed because the socket had already been shut down in that direction with a previous shutdown call"}

我敢肯定，故障是我的结束，这里是我使用的功能：

private static void SendCallback(IAsyncResult ar) 
{ 
    try 
    { 
     // Retrieve the socket from the state object. 
     Socket handler = (Socket)ar.AsyncState; 

     // Complete sending the data to the remote device. 
     int bytesSent = handler.EndSend(ar); 
     Console.WriteLine("Sent {0} bytes to client.", bytesSent); 

     handler.Shutdown(SocketShutdown.Both); 
     // handler.Close(); 
     sendDone.Set(); 

    } 
    catch (Exception e) 
    { 
     Console.WriteLine(e.ToString()); 
    } 
} 

private static void Send(Socket handler, String data) 
{ 
    // Convert the string data to byte data using ASCII encoding. 
    byte[] byteData = Encoding.ASCII.GetBytes(data); 

    // Begin sending the data to the remote device. 
    handler.BeginSend(byteData, 0, byteData.Length, 0, 
     new AsyncCallback(SendCallback), handler); 
} 

private static void Receive(Socket client) 
{ 
    try 
    { 
     // Create the state object. 
     StateObject state = new StateObject(); 
     state.workSocket = client; 

     // Begin receiving the data from the remote device. 
     client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, 
      new AsyncCallback(ReceiveCallback), state); 
    } 
    catch (Exception e) 
    { 
     Console.WriteLine(e.ToString()); 
    } 
} 
private static void ReceiveCallback(IAsyncResult ar) 
{ 
    try 
    { 
     // Retrieve the state object and the client socket 
     // from the asynchronous state object. 
     StateObject state = (StateObject)ar.AsyncState; 
     // Socket client = state.workSocket; 

     // Read data from the remote device. 
     int bytesRead = s.EndReceive(ar); 

     if (bytesRead > 0) 
     { 
      // There might be more data, so store the data received so far. 
      state.sb.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead)); 

      // Get the rest of the data. 
      s.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, 
       new AsyncCallback(ReceiveCallback), state); 
     } 
     else 
     { 
      // All the data has arrived; put it in response. 

      if (state.sb.Length > 1) 
      { 
       response = state.sb.ToString(); 
      } 
      // Signal that all bytes have been received. 
      receiveDone.Set(); 
     } 
    } 
    catch (Exception e) 
    { 
     Console.WriteLine(e.ToString()); 
    } 
}

我Connet的与客户端通过

IPAddress ipAd = IPAddress.Parse("my_actual_ip_adress"); 
     // use local m/c IP address, and 
     // use the same in the client 

     /* Initializes the Listener */ 
     TcpListener myList = new TcpListener(ipAd, 8001); 

     /* Start Listeneting at the specified port */ 
     myList.Start();

我意识到这可能听起来像一个愚蠢的问题，但我们有困难的时候提出实际的解决方案，任何帮助，我将不胜感激

来源

2016-12-01 some

你为什么要调用'handler.Shutdown（SocketShutdown.Both）;'？它做它所说的。 –

客户端不接收第一个字符串如果我评论该行或尝试任何版本的SocketShutDown – some

我设法修复它！原来我们需要摆脱handler.Shutdown（SocketShutdown.Both），然后改变客户端接收数据的方式，因为他在等待socket关闭。感谢让我沿着正确的道路@JeroenvanLangen – some

我设法解决它！原来我们需要摆脱handler.Shutdown（SocketShutdown.Both），然后改变客户端接收数据的方式，因为他在等待socket关闭。
- 部分

来源

2018-02-26 12:14:00 Armali

C＃ - 发送，reciving，然后再通过套接字发送

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