C#实现的UDP收发请求工具类实例

这篇文章主要介绍了C#实现的UDP收发请求工具类,结合具体实例形式分析了C#针对UDP请求的监听、接收、发送等相关操作技巧,需要的朋友可以参考下

本文实例讲述了C#实现的UDP收发请求工具类。分享给大家供大家参考，具体如下：

初始化：

				?

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

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

									SendingIp = ConfigurationManager.AppSettings["SendingIp"];

监听：

				?

									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###########");

									  });

									}

发送：

				?

									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);

									  }

									}