2017-03-08 7 views
1

C#クライアント経由でPythonにデータを送信しようとしています。Python SocketServerとC#クライアントの接続

No connection could be made because the target machine actively refused it

これは私のC#クライアントです:サーバーとクライアントの両方のいずれかであるPythonやC#が、私はC#クライアントとPythonサーバと同じコードを実行したときに、私は次のエラーを取得するとき、私のコードは動作します。私はこのコードを持っていますmsdn

using System; 
using System.Net; 
using System.Net.Sockets; 
using System.Threading; 
using System.Text; 

// State object for receiving data from remote device. 
public class StateObject 
{ 
    // Client socket. 
    public Socket workSocket = null; 
    // Size of receive buffer. 
    public const int BufferSize = 1024; 
    // Receive buffer. 
    public byte[] buffer = new byte[BufferSize]; 
    // Received data string. 
    public StringBuilder sb = new StringBuilder(); 
} 

public class AsynchronousClient 
{ 
    // The port number for the remote device. 
    private const int port = 11000; 

    // ManualResetEvent instances signal completion. 
    private static ManualResetEvent connectDone = 
     new ManualResetEvent(false); 
    private static ManualResetEvent sendDone = 
     new ManualResetEvent(false); 
    private static ManualResetEvent receiveDone = 
     new ManualResetEvent(false); 

    // The response from the remote device. 
    private static String response = String.Empty; 

    private static void StartClient() 
    { 
     // Connect to a remote device. 
     try 
     { 
      // Establish the remote endpoint for the socket. 
      // The name of the  
      IPHostEntry ipHostInfo = Dns.GetHostEntry(Dns.GetHostName()); 
      IPAddress ipAddress = ipHostInfo.AddressList[0]; 
      IPEndPoint remoteEP = new IPEndPoint(ipAddress, port); 

      // Create a TCP/IP socket. 
      Socket client = new Socket(ipAddress.AddressFamily, 
       SocketType.Stream, ProtocolType.Tcp); 

      // Connect to the remote endpoint. 
      client.BeginConnect(remoteEP, 
       new AsyncCallback(ConnectCallback), client); 
      connectDone.WaitOne(); 

      // Send test data to the remote device. 
      Send(client, "This is a test<EOF>"); 
      sendDone.WaitOne(); 

      // Receive the response from the remote device. 
      Receive(client); 
      receiveDone.WaitOne(); 

      // Write the response to the console. 
      Console.WriteLine("Response received : {0}", response); 

      // Release the socket. 
      client.Shutdown(SocketShutdown.Both); 
      client.Close(); 
     } 
     catch (Exception e) 
     { 
      Console.WriteLine(e.ToString()); 
     } 
    } 

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

      // Complete the connection. 
      client.EndConnect(ar); 

      Console.WriteLine("Socket connected to {0}", 
       client.RemoteEndPoint.ToString()); 

      // Signal that the connection has been made. 
      connectDone.Set(); 
     } 
     catch (Exception e) 
     { 
      Console.WriteLine(e.ToString()); 
     } 
    } 

    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 = client.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. 
       client.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()); 
     } 
    } 

    private static void Send(Socket client, 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. 
     client.BeginSend(byteData, 0, byteData.Length, 0, 
      new AsyncCallback(SendCallback), client); 
    } 

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

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

      // Signal that all bytes have been sent. 
      sendDone.Set(); 
     } 
     catch (Exception e) 
     { 
      Console.WriteLine(e.ToString()); 
     } 
    } 

    public static int Main(String[] args) 
    { 
     StartClient(); 
     return 0; 
    } 
} 

ここは私のPythonサーバーです。私は、メッセージを受信したときに、クライアントから1024バイトを読み取ろうとpython docs

import SocketServer 
import socket 

class MyTCPHandler(SocketServer.BaseRequestHandler): 

    def handle(self): 
     self.data = self.request.recv(1024).strip() 
     print "{} wrote:".format(self.client_address[0]) 
     print self.data 
     self.request.sendall(self.data.upper()) 

if __name__ == "__main__": 
    HOST, PORT = socket.gethostname(), 11000 

    server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler) 
    server.serve_forever() 

答えて

0

は私が

IPAddress ipAddress = ipHostInfo.AddressList[2]; 

IPAddress ipAddress = ipHostInfo.AddressList[0]; 

を変更することでこの問題を解決することができたことはAddressList[0]戻ってIPv4アドレスを返すsocket.gethostname() IPv6アドレスとPythonでアウトになります。

0

サーバーからこのコードを得ました。

`self.request.recv(1024).strip()` 

クライアント・メッセージ・サイズは、sendメソッドにStateObjectpublic byte[] bufferを使用しようと、1024バイトではありません。

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