asp.net使用Socket.Send发送信息及Socket.SendFile传输文件的方法分享

  // Displays sending with a connected socket  // using the overload that takes a buffer.  public static int SendReceiveTest1(Socket server)  {    byte[] msg = Encoding.UTF8.GetBytes("This is a test");    byte[] bytes = new byte[256];    try    {      // Blocks until send returns.      int i = server.Send(msg);      Console.WriteLine("Sent {0} bytes.", i);      // Get reply from the server.      i = server.Receive(bytes);      Console.WriteLine(Encoding.UTF8.GetString(bytes));    }    catch (SocketException e)    {      Console.WriteLine("{0} Error code: {1}.", e.Message, e.ErrorCode);      return (e.ErrorCode);    }    return 0;  }    

  // Establish the local endpoint for the socket.  IPHostEntry ipHost = Dns.GetHostEntry(Dns.GetHostName());  IPAddress ipAddr = ipHost.AddressList[0];  IPEndPoint ipEndPoint = new IPEndPoint(ipAddr, 11000);  // Create a TCP socket.  Socket client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);  // Connect the socket to the remote endpoint.  client.Connect(ipEndPoint);  // There is a text file test.txt located in the root directory.  string fileName = "C:\test.txt";  // Send file fileName to remote device  Console.WriteLine("Sending {0} to the host.", fileName);  client.SendFile(fileName);  // Release the socket.  client.Shutdown(SocketShutdown.Both);  client.Close();