你如何处理Java中的Socket Disconnecting？

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
    public static void main(String[] args) {
        ServerSocket serverSocket = null;
        Socket socket = null;
        BufferedReader in = null;
        try {
            serverSocket = new ServerSocket(8888);
            System.out.println("Server is listening on port 8888");
            while (true) {
                socket = serverSocket.accept();
                System.out.println("New client connected");
                in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                String line;
                while ((line = in.readLine()) != null) {
                    System.out.println("Received: " + line);
                    if (line.equals("disconnect")) {
                        System.out.println("Client disconnected");
                        break;
                    }
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
                if (socket != null) {
                    socket.close();
                }
                if (serverSocket != null) {
                    serverSocket.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}