C#如何将多个客户端连接到同一台服务器？

我在客户机-服务器端工作，对.net和C#不太熟悉，我想知道如何将多个客户机连接到同一台服务器。如果可以，我更愿意继续使用TcpClient

    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;
    using System.Net;
    using System.Net.Sockets;
    using System.IO;
    using Microsoft.VisualBasic;
    using System.Runtime.Serialization.Formatters.Binary;
    using System.Threading;

  namespace TFServerClient
   {
      public partial class Form1 : Form
    {
      private TcpClient client;
      public StreamReader STR;
      public StreamWriter STW;
      public string receive;
      public String text_to_send;
      TcpListener listener;

    public Form1()
    {
        InitializeComponent();

        IPAddress[] localIP = Dns.GetHostAddresses(Dns.GetHostName()); //gets my IP
        foreach(IPAddress address in localIP)
        {
            if(address.AddressFamily == AddressFamily.InterNetwork)
            {
                txtIPServer.Text = address.ToString();
            }
        }
    }

    private void btnStartServer_Click(object sender, EventArgs e)
    {
        ListenBackground.RunWorkerAsync();
    }

    private void ReceiveData_DoWork(object sender, DoWorkEventArgs e)
    {
        while(client.Connected)
        {
            try
            {
                receive = STR.ReadLine();
                this.txtChat.Invoke(new MethodInvoker(delegate () { txtChat.AppendText("You: " + receive + "\n"); }));
                receive = "";
            }
            catch (Exception x)
            {
                MessageBox.Show(x.Message.ToString());
            }
        }
    }

    private void SendData_DoWork(object sender, DoWorkEventArgs e)
    {
        if(client.Connected)
        {
            STW.WriteLine(text_to_send);
            this.txtChat.Invoke(new MethodInvoker(delegate () { txtChat.AppendText("Me: " + text_to_send + "\n"); }));
        }
        else
        {
            MessageBox.Show("Send failed");
        }
        SendData.CancelAsync();
    }

    private async void ListenBackground_DoWork(object sender, DoWorkEventArgs e)
    {
        this.txtChat.Invoke(new MethodInvoker(delegate () { txtChat.AppendText("Awaiting Connection...\n"); }));
        client = listener.AcceptTcpClient();
        this.txtChat.Invoke(new MethodInvoker(delegate () { txtChat.AppendText("Client Connected.\n"); }));
        STR = new StreamReader(client.GetStream());
        STW = new StreamWriter(client.GetStream());
        STW.AutoFlush = true;

        ReceiveData.RunWorkerAsync(); //Start recieving data in background
        SendData.WorkerSupportsCancellation = true; //able to cancel thread
    }

    private void btnConnect_Click(object sender, EventArgs e)
    {
        client = new TcpClient();
        IPEndPoint IP_End = new IPEndPoint(IPAddress.Parse(txtIPClient.Text), int.Parse(txtPortClient.Text));

        try {
            client.Connect(IP_End);
            if(client.Connected)
            {
                txtChat.AppendText("Connected To Server " + "\n");
                STW = new StreamWriter(client.GetStream());
                STR = new StreamReader(client.GetStream());
                STW.AutoFlush = true;

                ReceiveData.RunWorkerAsync(); //Start recieving data in background
                SendData.WorkerSupportsCancellation = true; //able to cancel thread
            }
        } catch(Exception x)
        {
            MessageBox.Show(x.Message.ToString());
        }
    }

    private void btnSend_Click(object sender, EventArgs e)
    {
        if(txtMessage.Text != "")
        {
            text_to_send = txtMessage.Text;
            SendData.RunWorkerAsync();
        }
        txtMessage.Text = "";
    }
}
}

---

有一个非常好的免费库叫做NetSockets，你可以用它来实现。 （）<下载lib

lib是TCP和多线程的，下面介绍如何使用它：

• 服务器端：

正在创建服务器：

static NetObjectServer server = new NetObjectServer();

正在启动服务器：

server.Start(IPAddress.Any, 7482);

事件处理程序：

server.OnClientAccepted += server_OnClientAccepted;

server.OnClientConnected += server_OnClientConnected;

server.OnClientDisconnected += server_OnClientDisconnected;

server.OnClientRejected += server_OnClientRejected;

server.OnReceived += server_OnReceived;

server.OnStarted += server_OnStarted;

server.OnStopped += server_OnStopped;

client.OnConnected += client_OnConnected;

client.OnDisconnected += client_OnDisconnected;

client.OnReceived += client_OnReceived;

• 客户端：

创建客户端：

static readonly NetObjectClient client = new NetObjectClient();

事件处理程序：

server.OnClientAccepted += server_OnClientAccepted;

server.OnClientConnected += server_OnClientConnected;

server.OnClientDisconnected += server_OnClientDisconnected;

server.OnClientRejected += server_OnClientRejected;

server.OnReceived += server_OnReceived;

server.OnStarted += server_OnStarted;

server.OnStopped += server_OnStopped;

client.OnConnected += client_OnConnected;

client.OnDisconnected += client_OnDisconnected;

client.OnReceived += client_OnReceived;

连接：

client.TryConnect("127.0.0.1",7482);

---

此信息取自Joseph Bisaillon的博客（）

听起来您只需对服务器端代码执行多线程操作，如下所示：

listener = new TcpListener(ipAddress, portNumber);
listener.Start();

while (true)
{
    var client = listener.AcceptTcpClient();
    var thread = new Thread(new ThreadStart(() => SOME ACTION));
}

传递给ThreadStart构造函数的委托将处理创建流读取器和流写入器的操作。它还应该执行您想要执行的任何服务器端业务逻辑

AcceptTcpClient方法是一种阻塞方法，因此只有在每次收到来自客户端的TCP请求时，才会创建一个新的线程实例

此类行动的例子如下：

在csharp.net-informations.com

在codeproject.com

---

警告：通过在codeproject.com上查看与文章相关的下载，您同意服务条款和文章的许可证。许可证是代码项目开放许可证（CPOL）

您已经发布了代码并解释了您的工作内容，但是您没有说明当前代码的问题所在。。请编辑问题并说明当前代码中存在的问题<代码>这不是代码工厂服务站点。。！如果你打开两次应用并连接它们，那么你有多个连接的客户端。。。这就是你的意思吗？当前代码只允许一个客户端连接然后停止。我需要弄清楚如何将多个客户端连接到聊天服务器。我不知道该怎么做。打开多个方法不起作用，因为我的代码只听一个。考虑在你使用的任何UI之外编程网络API。代码不必要地与回调方法混合在一起，这些回调方法对服务器没有什么意义，服务器应该使用System.NET或更高级别的API（例如web API自托管）。虽然此链接可以回答问题，但最好在此处包含答案的基本部分，并提供链接供参考。如果链接页面发生更改，仅链接的答案可能无效。-谢谢你的评论我修正了它！：）实际上没有。您仍然提供了一个不必要的第三方库来完成标准.net资源可以完成的工作。