服务端： 第一种方法：using System;using System.IO;using System.Net.Sockets;using System.Text;using System.Collections;using System.Threading;class ClientConnectionPool { // Creates a synchronized wrapper around the Queue. private Queue SyncdQ = Queue.Synchronized( new Queue() ); public void Enqueue(ClientHandler client) { SyncdQ.Enqueue(client) ; } public ClientHandler Dequeue() { return (ClientHandler) ( SyncdQ.Dequeue() ) ; } public int Count { get { return SyncdQ.Count ; } } public object SyncRoot { get { return SyncdQ.SyncRoot ; } } } // class ClientConnectionPool class ClientService { const int NUM_OF_THREAD = 10; private ClientConnectionPool ConnectionPool ; private bool ContinueProcess = false ; private Thread [] ThreadTask = new Thread[NUM_OF_THREAD] ; public ClientService(ClientConnectionPool ConnectionPool) { this.ConnectionPool = ConnectionPool ; } public void Start() { ContinueProcess = true ; // Start threads to handle Client Task for ( int i = 0 ; i < ThreadTask.Length ; i++) { ThreadTask[i] = new Thread( new ThreadStart(this.Process) ); ThreadTask[i].Start() ; } } private void Process() { while ( ContinueProcess ) { ClientHandler client = null ; lock( ConnectionPool.SyncRoot ) { if ( ConnectionPool.Count > 0 ) client = ConnectionPool.Dequeue() ; } if ( client != null ) { client.Process() ; // Provoke client // if client still connect, schedufor later processingle it if ( client.Alive ) ConnectionPool.Enqueue(client) ; } Thread.Sleep(100) ; } } public void Stop() { ContinueProcess = false ; for ( int i = 0 ; i < ThreadTask.Length ; i++) { if ( ThreadTask[i] != null && ThreadTask[i].IsAlive ) ThreadTask[i].Join() ; } // Close all client connections while ( ConnectionPool.Count > 0 ) { ClientHandler client = ConnectionPool.Dequeue() ; client.Close() ; Console.WriteLine("Client connection is closed!") ; } } } // class ClientServicepublic class SynchronousSocketListener { private const int portNum = 10116 ; public static void StartListening() { ClientService ClientTask ; // Client Connections Pool ClientConnectionPool ConnectionPool = new ClientConnectionPool() ; // Client Task to handle client requests ClientTask = new ClientService(ConnectionPool) ; ClientTask.Start() ; TcpListener listener = new TcpListener(portNum); try { listener.Start(); int TestingCycle = 3 ; // Number of testing cycles int ClientNbr = 0 ; // Start listening for connections. Console.WriteLine("Waiting for a connection..."); while ( TestingCycle > 0 ) { TcpClient handler = listener.AcceptTcpClient(); if ( handler != null) { Console.WriteLine("Client#{0} accepted!", ++ClientNbr) ; // An incoming connection needs to be processed. ConnectionPool.Enqueue( new ClientHandler(handler) ) ; --TestingCycle ; } else break; } listener.Stop(); // Stop client requests handling ClientTask.Stop() ; } catch (Exception e) { Console.WriteLine(e.ToString()); } Console.WriteLine("/nHit enter to continue..."); Console.Read(); } public static int Main(String[] args) { StartListening(); return 0; }}class ClientHandler {private TcpClient ClientSocket ; private NetworkStream networkStream ;bool ContinueProcess = false ; private byte[] bytes; // Data buffer for incoming data. private StringBuilder sb = new StringBuilder(); // Received data string.private string data = null; // Incoming data from the client.public ClientHandler (TcpClient ClientSocket) {ClientSocket.ReceiveTimeout = 100 ; // 100 milisecondsthis.ClientSocket = ClientSocket ; networkStream = ClientSocket.GetStream(); bytes = new byte[ClientSocket.ReceiveBufferSize]; ContinueProcess = true ;}public void Process() { try { int BytesRead = networkStream.Read(bytes, 0, (int) bytes.Length); if ( BytesRead > 0 ) // There might be more data, so store the data received so far. sb.Append(Encoding.ASCII.GetString(bytes, 0, BytesRead)); else // All the data has arrived; put it in response. ProcessDataReceived() ; } catch ( IOException ) { // All the data has arrived; put it in response. ProcessDataReceived() ; } catch ( SocketException ) { networkStream.Close() ; ClientSocket.Close(); ContinueProcess = false ; Console.WriteLine( "Conection is broken!"); } } // Process() private void ProcessDataReceived() { if ( sb.Length > 0 ) {bool bQuit = ( String.Compare( sb.ToString(), "quit", true ) == 0 ) ;data = sb.ToString() ; sb.Length = 0 ; // Clear bufferConsole.WriteLine( "Text received from client:") ; Console.WriteLine(data) ;StringBuilder response = new StringBuilder( ) ;response.Append( "Received at " ) ;response.Append( DateTime.Now.ToString() ) ;response.Append( "/r/n" ) ;response.Append( data ) ; // Echo the data back to the client. byte[] sendBytes = Encoding.ASCII.GetBytes(response.ToString()); networkStream.Write(sendBytes, 0, sendBytes.Length); // Client stop processing if ( bQuit ) { networkStream.Close() ; ClientSocket.Close(); ContinueProcess = false ; } } } public void Close() { networkStream.Close() ; ClientSocket.Close(); } public bool Alive { get { return ContinueProcess ; } } } // class ClientHandler using System;using System.IO;u</p></div><br /><hr><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.2.1/css/bootstrap.min.css" integrity="sha512-siwe/oXMhSjGCwLn+scraPOWrJxHlUgMBMZXdPe2Tnk3I0x3ESCoLz7WZ5NTH6SZrywMY+PB1cjyqJ5jAluCOg==" crossorigin="anonymous" referrerpolicy="no-referrer" /> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-icons/1.9.1/font/bootstrap-icons.min.css" integrity="sha512-5PV92qsds/16vyYIJo3T/As4m2d8b6oWYfoqV+vtizRB6KhF1F9kYzWzQmsO6T3z3QG2Xdhrx7FQ+5R1LiQdUA==" crossorigin="anonymous" referrerpolicy="no-referrer" /> <script src="https://challenges.cloudflare.com/turnstile/v0/api.js?onload=_turnstileCb" defer></script> <br /> <main class="form-signin" style="width: 350px;"> <form method="POST" action="?t=1783582382_2674"> <p>你的当前访问异常,请进行认证后继续阅读剩余内容。</p> <div class="checkbox mb-3"> <!-- The Turnstile widget will be injected in the following div. --> <div 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