TCP/IP 服务器如何监听多个客户端？

Question

我正在使用 GSM/GPRS 调制解调器建立一个小型 tcp/ip 连接，我有一台运行服务器（侦听器）程序的服务器 PC，并且有几个（超过 100 个）调制解调器位于不同的地方，它们发送在特定时期向服务器发送小数据包。

我已经用一个客户端测试了系统，但是如何用多个客户端测试它？我的服务器将如何响应多个客户端？

这是我的服务器代码：

    private TcpListener tcpListener;
    private Thread listenThread;
    public static TcpClient client;

    public Form1()
    {
        InitializeComponent();
        this.tcpListener = new TcpListener(IPAddress.Any, 2020);
        this.listenThread = new Thread(new ThreadStart(ListenForClients));
        this.listenThread.Start();
    }
    private void ListenForClients()
    {
        this.tcpListener.Start();

        while (true)
        {
            //blocks until a client has connected to the server
            client = this.tcpListener.AcceptTcpClient();


            //create a thread to handle communication
            //with connected client
            Thread clientThread = new Thread(new ParameterizedThreadStart(HandleClientComm));
            clientThread.Start(client);
        }
    }
    private void HandleClientComm(object client)
    {
        TcpClient tcpClient = (TcpClient)client;
        NetworkStream clientStream = tcpClient.GetStream();

        //TcpClient client = new TcpClient(servername or ip , port);
        //IpEndPoint ipend = tcpClient.RemoteEndPoint;
        //Console.WriteLine(IPAddress.Parse(ipend.Address.ToString());

        //label3.Text = IPAddress.Parse(((IPEndPoint)tcpClient.Client.RemoteEndPoint).Address.ToString()).ToString();
        SetControlPropertyThreadSafe(label3, "Text", IPAddress.Parse(((IPEndPoint)tcpClient.Client.RemoteEndPoint).Address.ToString()).ToString());

        byte[] message = new byte[4096];
        int bytesRead;

        while (true)
        {
            bytesRead = 0;

            try
            {
                //blocks until a client sends a message
                bytesRead = clientStream.Read(message, 0, 4096);
            }
            catch
            {
                //a socket error has occured
                break;
            }

            if (bytesRead == 0)
            {
                //the client has disconnected from the server
                break;
            }

            //message has successfully been received
            ASCIIEncoding encoder = new ASCIIEncoding();
            //System.Diagnostics.Debug.WriteLine(encoder.GetString(message, 0, bytesRead));

            string received_text = encoder.GetString(message, 0, bytesRead).ToString();

            SetControlPropertyThreadSafe(label1, "Text", received_text);

            if (received_text == "cmdtim")
            {
                SendData(DateTime.Now.ToString());
            }
        }

        tcpClient.Close();
    }

如您所见，我为监听客户端创建了一个单独的线程，我如何监听多个客户端？

我应该为每个客户创建一个线程吗？
不知道每一刻会有多少个客户端，服务器监听特定客户端时会缓存其他客户端的数据吗？

监听多个客户并同时向他们发送所有数据的最佳策略是什么？

Answer 1

一些建议：

删除：

public static TcpClient client;

替换：

client = this.tcpListener.AcceptTcpClient();

与

TcpClient client = this.tcpListener.AcceptTcpClient();