本文实例讲述了asp.net使用Socket.Send发送信息及Socket.SendFile传输文件的方法。分享给大家供大家参考，具体如下：

// 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();

希望本文所述对大家asp.net程序设计有所帮助。