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MessagingServer.java
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115 lines (101 loc) · 4.24 KB
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package com.demo;
import java.io.IOException;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.List;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
public class MessagingServer {
private static final int PORT = 8093;
private Set<ClientHandler> clients = ConcurrentHashMap.newKeySet();
private DatabaseManager dbManager;
private ServerSocket serverSocket;
public MessagingServer() {
dbManager = new DatabaseManager();
}
public void start() {
try {
// Test database connection first
System.out.println("Testing database connection...");
dbManager.getRecentMessages(1); // Test database access
System.out.println("Database connection successful!");
serverSocket = new ServerSocket(PORT);
System.out.println("=== MESSAGING SERVER STARTED ===");
System.out.println("Server listening on port: " + PORT);
System.out.println("Server address: " + InetAddress.getLocalHost().getHostAddress());
System.out.println("Waiting for client connections...");
System.out.println("================================");
while (serverSocket != null && !serverSocket.isClosed()) {
try {
Socket clientSocket = serverSocket.accept();
System.out.println("Accepted connection from:" + clientSocket.getRemoteSocketAddress());
ClientHandler clientHandler = new ClientHandler(clientSocket, this);
clients.add(clientHandler);
new Thread(clientHandler).start();
System.out.println("New client connected. Total clients: " + clients.size());
} catch (IOException e) {
System.err.println("Error accepting client: " + e.getMessage());
e.printStackTrace();
} catch (Exception e) {
System.err.println("Unexpected error: " + e.getMessage());
e.printStackTrace();
}
}
} catch (IOException e) {
System.err.println("Server error: " + e.getMessage());
e.printStackTrace();
} catch (Exception e) {
System.err.println("Database connection error: " + e.getMessage());
System.err.println("Please check your MySQL connection settings.");
e.printStackTrace();
}
}
public void broadcastMessage(String message, ClientHandler sender) {
for (ClientHandler client : clients) {
if (client != sender && client.isConnected()) {
client.sendMessage(message);
}
}
}
public void removeClient(ClientHandler client) {
clients.remove(client);
System.out.println("Client disconnected. Total clients: " + clients.size());
}
public void saveMessage(String username, String message) {
dbManager.saveMessage(username, message);
}
public List<ChatMessage> getRecentMessages() {
return dbManager.getRecentMessages(50);
}
public void stop() {
try {
if (serverSocket != null && !serverSocket.isClosed()) {
serverSocket.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
try {
MessagingServer server = new MessagingServer();
// Add shutdown hook
Runtime.getRuntime().addShutdownHook(new Thread(server::stop));
server.start();
} catch (Exception e) {
System.err.println("Failed to start server:" + e.getMessage());
e.printStackTrace();
}
SwingUtilities.invokeLater(() -> {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
e.printStackTrace();
}
new MessagingClient().setVisible(true);
});
}
}