C# 다중채팅 WPF 클라이언트 코드

using System;
using System.IO;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Windows;
using Firebase.Database;
using Firebase.Database.Query;

namespace ChatClient
{
    public partial class MainWindow : Window
    {
        TcpClient clientSocket = new TcpClient();
        NetworkStream stream = default(NetworkStream);
        string message = string.Empty;
        StreamWriter writer;
        StreamReader reader;
        FirebaseClient firebaseClient;

        public MainWindow()
        {
            InitializeComponent();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            ConnectToServer();
            ConnectToFirebase();
        }

        private void ConnectToServer()
        {
            try
            {
                clientSocket.Connect("127.0.0.1", 7777);
                stream = clientSocket.GetStream();
                writer = new StreamWriter(stream, Encoding.UTF8) { AutoFlush = true };
                reader = new StreamReader(stream, Encoding.UTF8);

                Thread receiveThread = new Thread(ReceiveMessages);
                receiveThread.IsBackground = true;
                receiveThread.Start();

                writer.WriteLine("User" + new Random().Next(1000)); // 임의의 사용자 이름 전송
            }
            catch (Exception ex)
            {
                MessageBox.Show("서버 연결 실패: " + ex.Message);
            }
        }

        private void ConnectToFirebase()
        {
            firebaseClient = new FirebaseClient("https://your-database-name.firebaseio.com/");
            var observable = firebaseClient
                .Child("messages")
                .AsObservable<Message>()
                .Subscribe(d => this.Dispatcher.Invoke(() =>
                {
                    chatList.Items.Add(d.Object.Message);
                }));
        }

        private void ReceiveMessages()
        {
            while (true)
            {
                try
                {
                    message = reader.ReadLine();
                    if (message != null)
                    {
                        this.Dispatcher.Invoke(() =>
                        {
                            chatList.Items.Add(message);
                        });
                    }
                }
                catch (Exception ex)
                {
                    this.Dispatcher.Invoke(() =>
                    {
                        chatList.Items.Add("서버 연결 끊김: " + ex.Message);
                    });
                    break;
                }
            }
        }

        private void sendButton_Click(object sender, RoutedEventArgs e)
        {
            if (!string.IsNullOrWhiteSpace(messageBox.Text))
            {
                writer.WriteLine(messageBox.Text);
                messageBox.Clear();
            }
        }

        public class Message
        {
            public string Message { get; set; }
        }
    }
}

 

 

--클라이언트 XAML--

 

<Window x:Class="ChatClient.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Chat Client" Height="350" Width="525" Loaded="Window_Loaded">
    <Grid>
        <ListBox x:Name="chatList" HorizontalAlignment="Left" Height="238" Margin="10,10,0,0" VerticalAlignment="Top" Width="497"/>
        <TextBox x:Name="messageBox" HorizontalAlignment="Left" Height="23" Margin="10,258,0,0" VerticalAlignment="Top" Width="414"/>
        <Button Content="Send" HorizontalAlignment="Left" Margin="429,258,0,0" VerticalAlignment="Top" Width="78" Click="sendButton_Click"/>
    </Grid>
</Window>