如何从Java呈现精美的桌面通知？

import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class DesktopNotification {
    public static void main(String[] args) {
        // 创建通知窗口
        JFrame notificationWindow = new JFrame("桌面通知");
        notificationWindow.setSize(300, 200);
        notificationWindow.setLocationRelativeTo(null);
        notificationWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 设计通知内容
        JLabel notificationLabel = new JLabel("您有新的消息！");
        notificationLabel.setFont(new Font("Arial", Font.BOLD, 20));
        notificationLabel.setForeground(Color.RED);
        notificationWindow.add(notificationLabel);

        JButton closeButton = new JButton("关闭");
        closeButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                System.exit(0);
            }
        });
        notificationWindow.add(closeButton);

        // 设置通知样式
        notificationWindow.getContentPane().setBackground(Color.WHITE);
        notificationWindow.getRootPane().setBorder(javax.swing.BorderFactory.createMatteBorder(2, 2, 2, 2, Color.BLACK));

        // 显示通知窗口
        notificationWindow.setVisible(true);
    }
}