ネットワーク接続-データ受信（UDP）

UDPプロトコルに基づいて、データを受信します

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
//using System.Threading.Tasks;


namespace UDPTest
{
    
    
    /// <summary>
    /// 接收
    /// </summary>
    public class LabelReceiveService
    {
    
    
        public SceneDataXmlRead sceneDataXmlRead;
        /// <summary>
        /// 用于UDP发送的网络服务类
        /// </summary>
        static UdpClient udpcRecv = null;

        static IPEndPoint localIpep = null;

        /// <summary>
        /// 开关：在监听UDP报文阶段为true，否则为false
        /// </summary>
        public  static bool IsUdpcRecvStart = false;
        /// <summary>
        /// 线程：不断监听UDP报文
        /// </summary>
        static Thread thrRecv;

        /// <summary>
        /// 接收到的数据
        /// </summary>
        public static int message = 0;
        static int port = 8899; //端口号


        public static void StartReceive()
        {
    
    
            if (!IsUdpcRecvStart) // 未监听的情况，开始监听
            {
    
    
                localIpep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), port); // 本机IP和监听端口号
                udpcRecv = new UdpClient(localIpep);
                thrRecv = new Thread(ReceiveMessage);
                thrRecv.Start();
                IsUdpcRecvStart = true;
                Console.WriteLine("UDP监听器已成功启动");
            }
        }

        public static void StopReceive()
        {
    
    
            if (IsUdpcRecvStart)
            {
    
    
                thrRecv.Abort(); // 必须先关闭这个线程，否则会异常
                udpcRecv.Close();
                IsUdpcRecvStart = false;
                Console.WriteLine("UDP监听器已成功关闭");
            }
        }
        public static int oldIndex = 0;
        /// <summary>
        /// 接收数据
        /// </summary>
        /// <param name="obj"></param>
        private static void ReceiveMessage(object obj)
        {
    
    
            while (true)
            {
    
    
                try
                {
    
    
                    byte[] bytRecv = udpcRecv.Receive(ref localIpep);
                    if (bytRecv.Length == 0)
                    {
    
    
                        Thread.Sleep(10);
                        continue;
                    }

                    string strRec = Encoding.UTF8.GetString(bytRecv, 0, bytRecv.Length);
                    message = System.Convert.ToInt16(strRec);
                    //--------------------接收到的数据 message------------------------------------

                    //if (message == 0 && oldIndex == 1)
                    //{
    
    
                    //    SceneDataXmlRead.Instance.ReadData();
                    //}
                    //oldIndex = message;
                }
                catch (Exception ex)
                {
    
    
                    Thread.Sleep(10);
                }
            }
        }

    }
}