C#异步UDP通信

最新推荐文章于 2025-09-17 08:18:22 发布

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最新推荐文章于 2025-09-17 08:18:22 发布 · 1.5w 阅读

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#c# #null #byte #socket #string #thread

本文提供了一个使用C#实现的异步UDP通信示例，包括服务器端（AsyncUdpSever）和客户端（AsyncUdpClient）。代码通过UdpClient类实现了接收和发送数据包的异步操作，确保了高效的数据交换。服务器端不断监听并回应客户端的请求，客户端则周期性地发送消息并接收响应。

using System; using System.Collections.Generic; using System.Text; using System.Net; using System.Net.Sockets; using System.Threading; namespace AsyncServer { public class UdpState { public UdpClient udpClient; public IPEndPoint ipEndPoint; public const int BufferSize = 1024; public byte[] buffer = new byte[BufferSize]; public int counter = 0; } public class AsyncUdpSever { private IPEndPoint ipEndPoint = null; private IPEndPoint remoteEP = null; private UdpClient udpReceive = null; private UdpClient udpSend = null; private const int listenPort = 1100; private const int remotePort = 1101; UdpState udpReceiveState = null; UdpState udpSendState = null; private ManualResetEvent sendDone = new ManualResetEvent(false); private ManualResetEvent receiveDone = new ManualResetEvent(false); public AsyncUdpSever() { ipEndPoint = new IPEndPoint(IPAddress.Any, listenPort); remoteEP = new IPEndPoint(Dns.GetHostAddresses(Dns.GetHostName())[0], remotePort); udpReceive = new UdpClient(ipEndPoint); udpSend = new UdpClient(); udpReceiveState = new UdpState(); udpReceiveState.udpClient = udpReceive; udpReceiveState.ipEndPoint = ipEndPoint; udpSendState = new UdpState(); udpSendState.udpClient = udpSend; udpSendState.ipEndPoint = remoteEP; } public void ReceiveMsg() {