C# 如何创建线程化客户端套接字

我用一个

完成了一个简单的ASPX页面。此页面将通过套接字与Windows窗体应用程序建立连接

应该如何工作

每次单击我的

时，我都必须将一些信息传递给我的Windows窗体read，然后我将打印它

TCP服务器代码

public partial class PaginaTeste : System.Web.UI.Page
{
    private TcpListener tcpListener;
    private Thread listenThread;

    protected void Page_Load(object sender, EventArgs e)
    {
    }

    protected void btnBotao_OnClick(object sender, EventArgs e)
    {
        this.tcpListener = new TcpListener(IPAddress.Any, 8849);
        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
            TcpClient 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();

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

        while (true)
        {
            bytesRead = 0;

            try
            {
                string serverResponse = "571764;10.";                        
                Byte[] sendBytes = Encoding.ASCII.GetBytes(serverResponse);
                clientStream.Write(sendBytes, 0, sendBytes.Length);
                clientStream.Flush();
            }
            catch
            {
                //a socket error has occured
                break;
            }

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

        tcpClient.Close();
    }

客户端代码（Windows窗体）

问题

   public partial class Form1 : Form
    {
        TcpClient clientsocket2;
        Thread thread;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {         
        }

        private void button3_click(object sender, EventArgs e)
        {
            this.clientsocket2 = new TcpClient();
           clientsocket2.Connect("server_ip", 8849);       
            this.thread = new Thread(new ThreadStart(this.imprimir));
            this.thread.Start();
        }
protected void imprimir()
        {       
            NetworkStream serverStream = clientsocket2.GetStream();
            byte[] inStream = new byte[10025];
            serverStream.Read(inStream, 0, (int)clientsocket2.ReceiveBufferSize);
            string returndata = System.Text.Encoding.ASCII.GetString(inStream);

            string r = "Printing Test";
            int retorno = -1;

            retorno = IniciaPorta("COM7");            

            if (retorno == 1)
            {
                ConfiguraModeloImpressora(7);
                BematechTX(r);
                AcionaGuilhotina(1);
                FechaPorta();
            }

            clientSocket.Close();
        }

如果我在

中单击一次并初始化

客户端应用程序

就可以了。在第二次单击

时，我传递给

客户端应用程序的参数返回空

我在客户端应用程序中读取空

string returndata=System.Text.Encoding.ASCII.GetString（流内）
为什么在按下页面中的按钮时创建tcpListener？
您需要创建TcpClient并向Winform应用程序发送comand
此代码发送comand并从服务器获得回复

string data = "Some_Comand";
        byte[] b = Encoding.ASCII.GetBytes(data);
        byte[] buffer = new byte[1024];
        var client = new TcpClient();
        var serverEndPoint = new IPEndPoint(IPAddress.Parse("ip"), 8010);
        client.Connect(serverEndPoint);
        var clientStream = client.GetStream();
        clientStream.Write(b, 0, b.Length);
        Socket s = client.Client;
        byte[] receiveData = new byte[200];
        s.Receive(receiveData);
        Debug.WriteLine(Encoding.ASCII.GetString(receiveData));

所有这些
运行一个
TcpListener
（服务器）作为页面的一部分（代表请求的一部分）对我来说是一个真正的危险信号。。。你想在这里做什么？在我的服务器的特定端口中打开通信。我有一台打印机，我做了一个Windows应用程序，通过DLL访问这台打印机。在我的Web应用程序中，我将发送数据，以便在此打印机中打印。因此，我的Web应用程序将数据发送到Windows窗体，并将Windows窗体发送到打印机。我曾经尝试过与ActiveX进行通信，但是我们的web应用程序将只在FireFox中运行。为什么winform不使用REST API/web服务之类的东西呢？你有没有一些例子来告诉我如何做到这一点？只需搜索“web服务ASP.NET”那里有很多
IDisposable
对象，它们应该在
using
语句中