客户端断开连接后，如何让 TCP 服务器等待新的客户端连接？

Question

我在 C# 中有一个 TCP 服务器。但问题是我希望它继续接收消息。当连接断开时，它应该等待一个新的连接然后接受它。

这是我目前的情况：

using System;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Text;

public class SimpleTcpSrvr
{
    public static void Main()
    {
        int recv;
        byte[] data = new byte[1024];
        IPEndPoint remoteEP = new IPEndPoint(IPAddress.Any, 5001);
        Socket SOC = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);


        SOC.Bind(remoteEP);
        SOC.Listen(25);
        Console.WriteLine("GETTING THE ENGINE WARMMED UP. . .");
        Socket client = SOC.Accept();
        IPEndPoint clientep = (IPEndPoint)client.RemoteEndPoint;
        Console.WriteLine("REACHING THE FAR LIMITS OF THE ENGINE!!!");

        data = new byte[1024];

        try
        {
            while (true)
            {
                recv = client.Receive(data);
                
                string RECEIVED_COMMAND = Encoding.ASCII.GetString(data, 0, recv);

                if (RECEIVED_COMMAND == "CONNECT")
                {
                    string TIME = DateTime.Now.ToString("h:mm:ss tt");

                    string TARGET_HOST_NAME = Dns.GetHostName();
                    string TARGET_IP = Dns.GetHostByName(TARGET_HOST_NAME).AddressList[0].ToString();

                    data = Encoding.ASCII.GetBytes(string.Join(Environment.NewLine, " " + "YOU HAVE SUCCESSFULLY CONNECTED", " TO " + TARGET_IP + " AT " + TIME));

                    client.Send(data, data.Length, SocketFlags.None);
                }


                else if (RECEIVED_COMMAND == "GET_INFORMATION")
                {
                    OperatingSystem OS_INFO = System.Environment.OSVersion;
                    string USERNAME = System.Security.Principal.WindowsIdentity.GetCurrent().Name;

                    string CHROME = null;

                    if (Directory.Exists(@"C:\Program Files (x86)\Google\Chrome"))
                    {
                        CHROME = "GOOGLE CHROME IS AVAILABLE.";
                    }

                    else if (!Directory.Exists(@"C:\Program Files (x86)\Google\Chrome"))
                    {
                        CHROME = "GOOGLE CHROME IS UNAVAILABLE.";
                    }


                    data = Encoding.ASCII.GetBytes(string.Join(Environment.NewLine, " " + OS_INFO.VersionString, " " + OS_INFO.Platform, " " + USERNAME, " " + CHROME));

                    client.Send(data, data.Length, SocketFlags.None);
                }
            }
        }
        catch (System.Net.Sockets.SocketException)
        {

        }

        Console.WriteLine("THE ENGINE HAS SUCCESSFULLY REACHED ITS LIMITS, AND NOW ON ITS FULL POWER   ;)");
        client.Close();
        SOC.Close();

        Console.ReadLine();
    }
}

Answer 1

这可能与 TCP server with multiple Clients

重复

为了能够接受多个客户端（或通信会话），您必须生成线程并在完成后关闭它们，或者提供一些类似的机制来侦听传入请求并满足它们。

客户端断开连接后，如何让 TCP 服务器等待新的客户端连接？

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