Instance of UDP Receiving and Transmitting Request Tool Class Implemented by C

  • 2021-12-13 16:47:15
  • OfStack

In this paper, an example is given to describe the UDP request sending and receiving tool class implemented by C #. Share it for your reference, as follows:

Initialization:


ListeningPort = int.Parse(ConfigurationManager.AppSettings["ListeningPort"]);
SendingPort = int.Parse(ConfigurationManager.AppSettings["SendingPort"]);
SendingIp = ConfigurationManager.AppSettings["SendingIp"];

Monitor:


public static void Listen()
{
  Task.Run(() =>
  {
    var done = false;
    var listener = new UdpClient(ListeningPort);
    var groupEP = new IPEndPoint(IPAddress.Any, ListeningPort);
    string received_data;
    byte[] receive_byte_array;
    try
    {
      _log.Error("############Service started###########");
      while (true)
      {
        receive_byte_array = listener.Receive(ref groupEP);
        Console.WriteLine("Received a broadcast from {0}", groupEP.ToString());
        received_data = Encoding.UTF8.GetString(receive_byte_array, 0, receive_byte_array.Length);
        ParseCommand(received_data);
      }
    }
    catch (Exception e)
    {
      _log.Error(e);
      Console.WriteLine(e.ToString());
    }
    _log.Error("############Service stopped###########");
  });
}

Send:


public static void SendCommand(string xmlCmd)
{
  try
  {
    var sending_socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
    var sending_end_point = new IPEndPoint(IPAddress.Parse(SendingIp), SendingPort);
    var send_buffer = Encoding.UTF8.GetBytes(xmlCmd);
    sending_socket.SendTo(send_buffer, sending_end_point);
    _log.Info("[COMMAND SENT] : " + xmlCmd);
  }
  catch (Exception ex)
  {
    _log.Error(ex);
  }
}

For more readers interested in C # related content, please check the topics on this site: "Summary of Thread Use Skills in C # Programming", "Summary of Form Operation Skills in C #", "Tutorial on Common Control Usage in C #", "Tutorial on Control Usage in WinForm #", "Tutorial on Data Structure and Algorithm in C #", "Summary on Array Operation Skills in C #" and "Introduction to Object-Oriented Programming in C #"

I hope this article is helpful to everyone's C # programming.


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