WinFormsでチャット用のクライアントアプリケーションを作成する

Question

私はC＃、WinFormsで簡単なチャットを作成しようとしています。

 TcpClient client; 
     public MainWindow() 
     { 
      InitializeComponent(); 
      client = new TcpClient("192.168.0.100", 1234); 
      AppDomain.CurrentDomain.ProcessExit += new EventHandler(OnProcessExit); 
      ReadAsync(client,logbox); 
     } 

    private void sendButton_Click(object sender, EventArgs e) 
      { 
     string text = textBox.Text; 
     byte[] data = Encoding.ASCII.GetBytes(text); 
     NetworkStream stream = client.GetStream(); 
     stream.Write(data,0,text.Length); 
    } 
    static async void ReadAsync(TcpClient client, RichTextBox box) 
    { 
     NetworkStream stream = client.GetStream(); 
     byte[] buffer = new byte[1024]; 
     while (true) 
     { 
      await stream.ReadAsync(buffer, 0, 1024); 
      box.AppendText(Encoding.ASCII.GetString(buffer)); 
     } 
    } 
    private void MainWindow_Load(object sender, EventArgs e) 
    { 

    } 
    void OnProcessExit(object sender, EventArgs e) 
    { 
     client.Close(); 
    } 

sendButton_Clickに問題があり、送信機能が動作しません。 私は、それがストリームを待っていると思う.Close（）;データを送信するには、このストリームがデータを受信するために必要です。

Answer 1

あなたは、これは簡単なチャットのWinFormsの一例である、ソケットを使用する必要があります。

サーバー：

using System; 
using System.Threading; 
using System.Net.Sockets; 
using System.Text; 
using System.Collections; 

namespace ChatServer 
{ 
    class Program 
    { 
     public static Hashtable clientsList = new Hashtable(); 

     static void Main(string[] args) 
     { 
      TcpListener serverSocket = new TcpListener(8888); 
      TcpClient clientSocket = default(TcpClient); 
      int counter = 0; 

      serverSocket.Start(); 
      Console.WriteLine("Chat Server Started ...."); 
      counter = 0; 
      while ((true)) 
      { 
       counter += 1; 
       clientSocket = serverSocket.AcceptTcpClient(); 

       byte[] bytesFrom = new byte[1000025]; 
       string dataFromClient = null; 

       NetworkStream networkStream = clientSocket.GetStream(); 
       networkStream.Read(bytesFrom, 0, (int)clientSocket.ReceiveBufferSize); 
       dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom); 
       dataFromClient = dataFromClient.Substring(0, dataFromClient.IndexOf("$")); 

       clientsList.Add(dataFromClient, clientSocket); 

       broadcast(dataFromClient + " Joined ", dataFromClient, false); 

       Console.WriteLine(dataFromClient + " Joined chat room "); 
       handleClinet client = new handleClinet(); 
       client.startClient(clientSocket, dataFromClient, clientsList); 
      } 

      clientSocket.Close(); 
      serverSocket.Stop(); 
      Console.WriteLine("exit"); 
      Console.ReadLine(); 
     } 

     public static void broadcast(string msg, string uName, bool flag) 
     { 
      foreach (DictionaryEntry Item in clientsList) 
      { 
       TcpClient broadcastSocket; 
       broadcastSocket = (TcpClient)Item.Value; 
       NetworkStream broadcastStream = broadcastSocket.GetStream(); 
       Byte[] broadcastBytes = null; 

       if (flag == true) 
       { 
        broadcastBytes = Encoding.ASCII.GetBytes(uName + " says : " + msg); 
       } 
       else 
       { 
        broadcastBytes = Encoding.ASCII.GetBytes(msg); 
       } 

       broadcastStream.Write(broadcastBytes, 0, broadcastBytes.Length); 
       broadcastStream.Flush(); 
      } 
     } 
    } 


    public class handleClinet 
    { 
     TcpClient clientSocket; 
     string clNo; 
     Hashtable clientsList; 

     public void startClient(TcpClient inClientSocket, string clineNo, Hashtable cList) 
     { 
      this.clientSocket = inClientSocket; 
      this.clNo = clineNo; 
      this.clientsList = cList; 
      Thread ctThread = new Thread(doChat); 
      ctThread.Start(); 
     } 

     private void doChat() 
     { 
      int requestCount = 0; 
      byte[] bytesFrom = new byte[100025]; 
      string dataFromClient = null; 
      Byte[] sendBytes = null; 
      string serverResponse = null; 
      string rCount = null; 
      requestCount = 0; 

      while ((true)) 
      { 
       try 
       { 
        requestCount = requestCount + 1; 
        NetworkStream networkStream = clientSocket.GetStream(); 
        networkStream.Read(bytesFrom, 0, (int)clientSocket.ReceiveBufferSize); 
        dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom); 
        dataFromClient = dataFromClient.Substring(0, dataFromClient.IndexOf("$")); 
        Console.WriteLine("From client - " + clNo + " : " + dataFromClient); 
        rCount = Convert.ToString(requestCount); 

        Program.broadcast(dataFromClient, clNo, true); 
       } 
       catch (Exception ex) 
       { 
        Console.WriteLine(ex.ToString()); 
       } 
      }//end while 
     }//end doChat 
    } //end class handleClinet 
} 

はクライアント：

using System; 
using System.Windows.Forms; 
using System.Text; 
using System.Net.Sockets; 
using System.Threading; 
namespace ChatClientForms 
{ 
    public partial class Form1 : Form 
    { 
     System.Net.Sockets.TcpClient clientSocket = new System.Net.Sockets.TcpClient(); 
     NetworkStream serverStream = default(NetworkStream); 
     string readData = null; 

     public Form1() 
     { 
      InitializeComponent(); 
     } 

     private void button1_Click(object sender, EventArgs e) 
     { 
      byte[] outStream = System.Text.Encoding.ASCII.GetBytes(textBox3.Text + "$"); 
      serverStream.Write(outStream, 0, outStream.Length); 
      serverStream.Flush(); 
     } 

     private void button2_Click(object sender, EventArgs e) 
     { 
      readData = "Conected to Chat Server ..."; 
      msg(); 
      clientSocket.Connect("127.0.0.1", 8888); 
      serverStream = clientSocket.GetStream(); 

      byte[] outStream = System.Text.Encoding.ASCII.GetBytes(textBox1.Text + "$"); 
      serverStream.Write(outStream, 0, outStream.Length); 
      serverStream.Flush(); 

      Thread ctThread = new Thread(getMessage); 
      ctThread.Start(); 
     } 

     private void getMessage() 
     { 
      while (true) 
      { 
       serverStream = clientSocket.GetStream(); 
       int buffSize = 0; 
       byte[] inStream = new byte[100025]; 
       buffSize = clientSocket.ReceiveBufferSize; 
       serverStream.Read(inStream, 0, buffSize); 
       string returndata = System.Text.Encoding.ASCII.GetString(inStream); 
       readData = "" + returndata; 
       msg(); 
      } 
     } 

     private void msg() 
     { 
      if (this.InvokeRequired) 
       this.Invoke(new MethodInvoker(msg)); 
      else 
       textBox2.Text = textBox2.Text + Environment.NewLine + " >> " + readData; 
     } 

    } 
}