关于C#如何实现的UDP收发请求工具类的示例代码分析

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);    }  }

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