C# 异步委托 TCP Server 通信接口示例

以下是一个简单的异步带委托的复杂 TCP Server 通信接口的示例代码：

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;

namespace TcpServerExample
{
    class Program
    {
        static void Main(string[] args)
        {
            StartServer();
            Console.ReadKey();
        }

        static void StartServer()
        {
            TcpListener listener = new TcpListener(IPAddress.Any, 8080);
            listener.Start();
            Console.WriteLine('Server started.');

            while (true)
            {
                TcpClient client = listener.AcceptTcpClient();
                Console.WriteLine('Client connected.');

                Thread thread = new Thread(() => HandleClient(client));
                thread.Start();
            }
        }

        static void HandleClient(TcpClient client)
        {
            NetworkStream stream = client.GetStream();

            byte[] buffer = new byte[1024];
            int bytesRead;

            while (true)
            {
                bytesRead = 0;

                try
                {
                    // Read client data asynchronously
                    AsyncCallback callback = new AsyncCallback(ReadCallback);
                    IAsyncResult result = stream.BeginRead(buffer, 0, buffer.Length, callback, null);
                    bytesRead = stream.EndRead(result);
                }
                catch
                {
                    // Error occurred while reading client data
                    break;
                }

                if (bytesRead == 0)
                {
                    // Client disconnected
                    break;
                }

                // Convert client data to string
                string data = Encoding.ASCII.GetString(buffer, 0, bytesRead);
                Console.WriteLine('Received data from client: ' + data);

                // Process client data asynchronously
                AsyncCallback callback2 = new AsyncCallback(ProcessCallback);
                IAsyncResult result2 = callback2.BeginInvoke(data, null, null);
            }

            client.Close();
            Console.WriteLine('Client disconnected.');
        }

        static void ReadCallback(IAsyncResult result)
        {
            // Do nothing
        }

        static void ProcessCallback(string data)
        {
            // Process client data here
            Console.WriteLine('Processing data: ' + data);
        }
    }
}

本示例代码使用 TcpListener 监听指定端口，使用 AcceptTcpClient() 方法接受客户端连接。每个客户端连接都使用独立的线程处理，以实现异步处理。HandleClient() 方法使用 BeginRead() 方法异步读取客户端数据，并使用 EndRead() 方法获取读取结果。最后，使用 ProcessCallback() 方法异步处理客户端数据。

此示例代码展示了基本的异步带委托的 TCP Server 通信接口的实现方式，您可以根据实际需求修改代码逻辑，例如添加错误处理、数据格式解析等功能。