C＃服务器客户端应用程序（一个服务器多客户端）

Question

我想开发一个客户端 - 服务器应用程序。我开始了这个项目，但是我遇到了一些问题。当我想用一个客户端连接到服务器时，一切都完成了。程序正在工作。但是当我想连接两台或三台PC到服务器时，它们的客户端正在工作，但其他客户端无法正常工作。我该如何解决这个问题？

这是我的代码;

using System; 
    using System.Collections.Generic; 
    using System.ComponentModel; 
    using System.Data; 
    using System.Drawing; 
    using System.Linq; 
    using System.Text; 
    using System.Threading; 
    using System.Threading.Tasks; 
    using System.Windows.Forms; 
    using System.Net; 
    using System.Net.Sockets; 
    using System.IO; 
    using System.Timers; 
    using ClientServer; 
    namespace ClientServer 
    { 
     public partial class Form1 : Form 
     { 
      private TcpClient Client; 
      private StreamReader STR; 
      public StreamWriter STW; 
      public string receive; 
      public string text_to_send; 
      //int zaman; 
      public Form1() 
      { 
        InitializeComponent(); 
-     Client = new TcpClient(); 
        Control.CheckForIllegalCrossThreadCalls = false; //cross threading problem 
        IPAddress[] LocalIP = Dns.GetHostAddresses(Dns.GetHostName()); // my IP Adress 
      foreach (IPAddress adress in LocalIP) 
      { 
       if(adress.AddressFamily== AddressFamily.InterNetwork) 
       { 
        textBox3.Text = adress.ToString(); 

       } 
      } 
     } 

     private void button2_Click(object sender, EventArgs e) //Start server 
     { 
      TcpListener listener = new TcpListener(IPAddress.Any, int.Parse(textBox4.Text)); 
      listener.Start(); 
      Client = listener.AcceptTcpClient(); 
      STR = new StreamReader(Client.GetStream()); 
      STW = new StreamWriter(Client.GetStream()); 
      STW.AutoFlush = true; 

      backgroundWorker1.RunWorkerAsync(); //receive data background 
      backgroundWorker2.WorkerSupportsCancellation = true; //ability cancel this thread 


     } 

     private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e) //receive data 
     { 
      while(Client.Connected) 
      { 
       try 
       { 
        receive = STR.ReadLine(); 
        if(receive=="soru1") 
        { 
         label7.Text = "Merhaba bu bir denemedir :)"; 
         //zaman = 45; 
         timer1.Enabled = true; 


        } 
        this.textBox2.Invoke(new MethodInvoker(delegate() { textBox2.AppendText("Sen:" + receive + "\n"); })); 

        receive = ""; 
       } 
       catch(Exception x) 
       { 
        MessageBox.Show(x.Message.ToString()); 
       } 
      } 
     } 



     private void backgroundWorker2_DoWork(object sender, DoWorkEventArgs e) //veri gönder 
     { 
      if(Client.Connected) 
      { 
       STW.WriteLine(text_to_send); 
       this.textBox2.Invoke(new MethodInvoker(delegate() { textBox2.AppendText("Ben:" + text_to_send + "\n"); })); 

      } 
      else 
      { 
       MessageBox.Show("Gönderim başarısız!"); 
      } 
      backgroundWorker2.CancelAsync(); 

     } 

     private void button3_Click(object sender, EventArgs e) //Connect Server 
     { 
      Client = new TcpClient(); 
      IPEndPoint IP_End = new IPEndPoint(IPAddress.Parse(textBox5.Text), int.Parse(textBox6.Text)); 

      try 
      { 
       Client.Connect(IP_End); 
       if(Client.Connected) 
       { 
        textBox2.AppendText("Server'a bağlantı sağlandı" + "\n"); 
        STW = new StreamWriter(Client.GetStream()); 
        STR = new StreamReader(Client.GetStream()); 
        STW.AutoFlush = true; 


        backgroundWorker1.RunWorkerAsync(); //receive data in background 
        backgroundWorker2.WorkerSupportsCancellation = true; // 

       } 
      } 
      catch(Exception x) 
      { 
       MessageBox.Show(x.Message.ToString()); 
      } 
     } 

     private void button1_Click(object sender, EventArgs e) //Send Button 
     { 
      if(textBox1.Text != "") 
      { 
       text_to_send = textBox1.Text; 
       backgroundWorker2.RunWorkerAsync(); 
      } 

      textBox1.Text = ""; 

     } 

     //private void timer1_Tick(object sender, System.EventArgs e) // 
     //{ 
     // zaman--; //timer her saniyede sayıyı 1 azaltacak 
     // label9.Text = zaman.ToString(); 
     // if (zaman == 0) 
     // { 
     //  timer1.Enabled = false; 
     // } 
     //} 


    } 
} 

Answer 1

这里一个很好的链接：

http://www.mikeadev.net/2012/07/multi-threaded-tcp-server-in-csharp/

https://www.codeproject.com/Articles/511814/Multi-client-per-one-server-socket-programming-in

tcpListener.Start();  
Console.WriteLine("************This is Server program************");  
Console.WriteLine("Hoe many clients are going to connect to this server?:");  
int numberOfClientsYouNeedToConnect =int.Parse(Console.ReadLine()); 

for (int i = 0; i < numberOfClientsYouNeedToConnect; i++) 
{  
    Thread newThread = new Thread(new ThreadStart(Listeners));  
    newThread.Start();  
}