Question

我正开始构建小型TCP Server。

现在，我被两个事件/功能之间的通信所困扰。我现在可以在Threads上使用它。

但是如何关闭线程并停止服务器？它说它不知道Button_stop事件中的客户端和服务器。

“服务器”中的代码是Microsoft的示例代码，但是可以。

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.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace MTTCP
{
public partial class Form1 : Form
{
    //Declare Thread
    Thread Server_Thread;

    public Form1()
    {
        InitializeComponent();
    }

    private void Start_Click(object sender, EventArgs e)
    {
        //Start Backround Server Thread
        Server_Thread = new Thread(Server);
        Server_Thread.Start();
    }

    //Backround Server
    private void Server()
    {
        TcpListener server = null;
        try
        {
            // Set the TcpListener on port 80.
            Int32 port = 80;
            IPAddress localAddr = IPAddress.Parse("192.168.0.123");

            // TcpListener server = new TcpListener(port);
            server = new TcpListener(localAddr, port);

            // Start listening for client requests.
            server.Start();

            // Buffer for reading data
            Byte[] bytes = new Byte[256];
            String data = null;

            // Enter the listening loop.
            while (true)
            {
                //Console.Write("Waiting for a connection... ");

                // Perform a blocking call to accept requests.
                // You could also user server.AcceptSocket() here.
                TcpClient client = server.AcceptTcpClient();
                //Console.WriteLine("Connected!");

                data = null;

                // Get a stream object for reading and writing
                NetworkStream stream = client.GetStream();

                int i;

                // Loop to receive all the data sent by the client.
                while ((i = stream.Read(bytes, 0, bytes.Length)) != 0)
                {
                    // Translate data bytes to a ASCII string.
                    data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
                    //Console.WriteLine("Received: {0}", data);

                    // Process the data sent by the client.
                    data = data.ToUpper();

                    byte[] msg = System.Text.Encoding.ASCII.GetBytes(data);

                    // Send back a response.
                    stream.Write(msg, 0, msg.Length);
                    //Console.WriteLine("Sent: {0}", data);
                }

                // Shutdown and end connection
                client.Close();
            }
        }
        catch (SocketException e)
        {
            //Console.WriteLine("SocketException: {0}", e);
        }
        finally
        {
            // Stop listening for new clients.
            server.Stop();
        }
        //Backround Server Ende

    }

    private void Stop_Click(object sender, EventArgs e)
    {
        //Here i want to stop the Thread an determine the Server

        client.Close(); //Does not work, doesnt know client
        server.Stop(); //Does not work, doesnt know server
    }
}
}

问候 NetflixAndChill

Answer 1

似乎您收到“客户端和服务器在当前上下文中不存在”错误。您必须将“服务器”和“客户端”变量的范围更改为类级别，才能在Stop_Click事件处理程序中访问它们。

关于，迪列普。

如何从C＃中的另一个事件停止TCP Server

1 个答案: