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"];
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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###########");
});
}
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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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(编辑：雷林鹏 来源：网络)