Sunucu İstemci basit bir metin gönderiyor/alıyor

Question

Sunucu ve istemci arasında basit bir dize gönderecek ve alacak bir uygulama oluşturmak için bir ev ödevim var. Bağlantının nasıl kurulacağını biliyorum, ancak dize nasıl gönderileceğini ve alınacağını bilmiyorum. Bu benim kodudur:

public partial class Form1 : Form 
{ 
    private Thread n_server; 
    private Thread n_client; 
    private Thread n_send_server; 
    private TcpClient client; 
    private TcpListener listener; 
    private int port = 2222; 
    private string IP = " "; 
    private Socket socket; 
    public Form1() 
    { 
     InitializeComponent(); 
    } 

    private void exitToolStripMenuItem_Click(object sender, EventArgs e) 
    { 
     Application.Exit(); 
    } 

    public void Server() 
    { 
     listener = new TcpListener(IPAddress.Any, port); 
     listener.Start(); 
     try 
     { 
      socket = listener.AcceptSocket(); 
      if (socket.Connected) 
      { 
       textBox2.Invoke((MethodInvoker)delegate { textBox2.Text = "Client : " + socket.RemoteEndPoint.ToString(); }); 
      } 
     } 
     catch 
     { 
     } 
    } 

    public void Client() 
    { 
     IP = "localhost"; 
     client = new TcpClient(); 
     try 
     { 
      client.Connect(IP, port); 
     } 

     catch (Exception ex) 
     { 
      MessageBox.Show("Error : " + ex.Message); 
     } 

     if (client.Connected) 
     { 
      textBox3.Invoke((MethodInvoker)delegate { textBox3.Text = "Connected..."; }); 

     } 
    } 

    private void button1_Click(object sender, EventArgs e) 
    { 
     n_server = new Thread(new ThreadStart(Server)); 
     n_server.IsBackground = true; 
     n_server.Start(); 
     textBox1.Text = "Server up"; 
    } 

    private void button2_Click(object sender, EventArgs e) 
    { 
     n_client = new Thread(new ThreadStart(Client)); 
     n_client.IsBackground = true; 
     n_client.Start(); 
    } 

    private void send() 
    { 
     // I want to use this method for both buttons : "send button" on server side and "send button" 
     // on client side. First I read text from textbox2 on server side or textbox3 
     // on client side than accept and write the string to label2(s) or label3(c). 
     // 
    } 


    private void button3_Click(object sender, EventArgs e) 
    { 
     n_send_server = new Thread(new ThreadStart(send)); 
     n_send_server.IsBackground = true; 
     n_send_server.Start(); 
    } 
} 

Answer 1

Aşağıdaki kod gönderme ve gelen ve sunucuya geçerli tarih ve saati alma

// Aşağıdaki kod sunucu uygulaması içindir:

namespace Server 
{ 
    class Program 
    { 
     const int PORT_NO = 5000; 
     const string SERVER_IP = "127.0.0.1"; 

     static void Main(string[] args) 
     { 
      //---listen at the specified IP and port no.--- 
      IPAddress localAdd = IPAddress.Parse(SERVER_IP); 
      TcpListener listener = new TcpListener(localAdd, PORT_NO); 
      Console.WriteLine("Listening..."); 
      listener.Start(); 

      //---incoming client connected--- 
      TcpClient client = listener.AcceptTcpClient(); 

      //---get the incoming data through a network stream--- 
      NetworkStream nwStream = client.GetStream(); 
      byte[] buffer = new byte[client.ReceiveBufferSize]; 

      //---read incoming stream--- 
      int bytesRead = nwStream.Read(buffer, 0, client.ReceiveBufferSize); 

      //---convert the data received into a string--- 
      string dataReceived = Encoding.ASCII.GetString(buffer, 0, bytesRead); 
      Console.WriteLine("Received : " + dataReceived); 

      //---write back the text to the client--- 
      Console.WriteLine("Sending back : " + dataReceived); 
      nwStream.Write(buffer, 0, bytesRead); 
      client.Close(); 
      listener.Stop(); 
      Console.ReadLine(); 
     } 
    } 
} 

// bu istemci

namespace Client 
{ 
    class Program 
    { 
     const int PORT_NO = 5000; 
     const string SERVER_IP = "127.0.0.1"; 
     static void Main(string[] args) 
     { 
      //---data to send to the server--- 
      string textToSend = DateTime.Now.ToString(); 

      //---create a TCPClient object at the IP and port no.--- 
      TcpClient client = new TcpClient(SERVER_IP, PORT_NO); 
      NetworkStream nwStream = client.GetStream(); 
      byte[] bytesToSend = ASCIIEncoding.ASCII.GetBytes(textToSend); 

      //---send the text--- 
      Console.WriteLine("Sending : " + textToSend); 
      nwStream.Write(bytesToSend, 0, bytesToSend.Length); 

      //---read back the text--- 
      byte[] bytesToRead = new byte[client.ReceiveBufferSize]; 
      int bytesRead = nwStream.Read(bytesToRead, 0, client.ReceiveBufferSize); 
      Console.WriteLine("Received : " + Encoding.ASCII.GetString(bytesToRead, 0, bytesRead)); 
      Console.ReadLine(); 
      client.Close(); 
     } 
    } 
} 

Answer 2

MÜŞTERİ

kodudur

ad SocketKlient

{ sınıf Programı

{ 
    static Socket Klient; 
    static IPEndPoint endPoint; 
    static void Main(string[] args) 
    { 
     Klient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); 
     string command; 
     Console.WriteLine("Write IP address"); 
     command = Console.ReadLine(); 
     IPAddress Address; 
     while(!IPAddress.TryParse(command, out Address)) 
     { 
      Console.WriteLine("wrong IP format"); 
      command = Console.ReadLine(); 
     } 
     Console.WriteLine("Write port"); 
     command = Console.ReadLine(); 

     int port; 
     while (!int.TryParse(command, out port) && port > 0) 
     { 
      Console.WriteLine("Wrong port number"); 
      command = Console.ReadLine(); 
     } 
     endPoint = new IPEndPoint(Address, port); 
     ConnectC(Address, port); 
     while(Klient.Connected) 
     { 
      Console.ReadLine(); 
      Odesli(); 
     } 
    } 

    public static void ConnectC(IPAddress ip, int port) 
    { 
     IPEndPoint endPoint = new IPEndPoint(ip, port); 
     Console.WriteLine("Connecting..."); 
     try 
     { 
      Klient.Connect(endPoint); 
      Console.WriteLine("Connected!"); 
     } 
     catch 
     { 
      Console.WriteLine("Connection fail!"); 
      return; 
     } 
     Task t = new Task(WaitForMessages); 
     t.Start(); 
    } 

    public static void SendM() 
    { 
     string message = "Actualy date is " + DateTime.Now; 
     byte[] buffer = Encoding.UTF8.GetBytes(message); 
     Console.WriteLine("Sending: " + message); 
     Klient.Send(buffer); 
    } 

    public static void WaitForMessages() 
    { 
     try 
     { 
      while (true) 
      { 
       byte[] buffer = new byte[64]; 
       Console.WriteLine("Waiting for answer"); 
       Klient.Receive(buffer, 0, buffer.Length, 0); 

       string message = Encoding.UTF8.GetString(buffer); 
       Console.WriteLine("Answer: " + message); 
      } 
     } 
     catch 
     { 
      Console.WriteLine("Disconnected"); 
     } 
    } 
} 

}

Answer 3

SUNUCU

ad SocketServer

{ sınıf Programı

{ 
    static Socket klient; 
    static void Main(string[] args) 
    { 
     Socket server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); 
     IPEndPoint endPoint = new IPEndPoint(IPAddress.Any, 8888); 
     server.Bind(endPoint); 
     server.Listen(20); 
     while(true) 
     { 
      Console.WriteLine("Waiting..."); 
      klient = server.Accept(); 

      Console.WriteLine("Client connected"); 
      Task t = new Task(ServisClient); 
      t.Start(); 
     } 
    } 

    static void ServisClient() 
    { 
     try 
     { 
      while (true) 
      { 
       byte[] buffer = new byte[64]; 
       Console.WriteLine("Waiting for answer..."); 
       klient.Receive(buffer, 0, buffer.Length, 0); 
       string message = Encoding.UTF8.GetString(buffer); 
       Console.WriteLine("Answer: " + message); 

       string answer = "Actualy date is " + DateTime.Now; 
       buffer = Encoding.UTF8.GetBytes(answer); 
       Console.WriteLine("Sending {0}", answer); 
       klient.Send(buffer); 
      } 
     } 
     catch 
     { 
      Console.WriteLine("Disconnected"); 
     } 
    } 
} 

}