我怎样才能做一个线程客户端套接字

Question

我已经做了一个简单的ASPX页面，只有一个。此页面将通过Socket与Windows窗体应用程序建立连接。

如何应该工作

每次我在我的点击我有一些信息传递给我的Windows窗体读，然后我会打印出来。

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）

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(); 
     } 

问题

如果我在点击一次，initiallize我Client Application工作很好。在第二次点击我的时，我传递给我的Client Application的参数返回为空。

当我在客户端应用程序

string returndata = System.Text.Encoding.ASCII.GetString(inStream);

Answer 1

为什么你在你的页面创建的TCPListener当按下按钮读空的？ 您需要创建TcpClient的和发送COMAND你winform应用程序 此代码发送COMAND从服务器得到的答复

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)); 

这就是所有