JPanel设置边框

import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;

public class BorderDemo
{
	public static void main(String[] args)
	{
		JFrame frame = new JFrame("边框演示");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		JPanel panel = new JPanel();
		panel.setLayout(new GridLayout(0, 2, 5, 10));
		panel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));

		JButton p1 = new JButton();
		p1.setBorder(BorderFactory.createLineBorder(Color.red, 3));
		p1.add(new JLabel("线边框"));
		panel.add(p1);

		JPanel p2 = new JPanel();
		p2.setBorder(BorderFactory.createEtchedBorder());
		p2.add(new JLabel("蚀刻边框"));
		panel.add(p2);

		JPanel p3 = new JPanel();
		p3.setBorder(BorderFactory.createRaisedBevelBorder());
		p3.add(new JLabel("斜面边框(凸)"));
		panel.add(p3);

		JPanel p4 = new JPanel();
		p4.setBorder(BorderFactory.createLoweredBevelBorder());
		p4.add(new JLabel("斜面边框(凹)"));
		panel.add(p4);

		JPanel p5 = new JPanel();
		p5.setBorder(BorderFactory.createTitledBorder("标题"));
		p5.add(new JLabel("标题边框"));
		panel.add(p5);

		JPanel p6 = new JPanel();
		TitledBorder tb = BorderFactory.createTitledBorder("标题");
		tb.setTitleJustification(TitledBorder.RIGHT);
		p6.setBorder(tb);
		p6.add(new JLabel("标签边框(右)"));
		panel.add(p6);

		JPanel p7 = new JPanel();
		p7.setBorder(BorderFactory.createMatteBorder(1, 5, 1, 1, Color.yellow));
		p7.add(new JLabel("花色边框"));
		panel.add(p7);

		JPanel p8 = new JPanel();
		Border b1 = BorderFactory.createLineBorder(Color.blue, 2);
		Border b2 = BorderFactory.createEtchedBorder();
		p8.setBorder(BorderFactory.createCompoundBorder(b1, b2));
		p8.add(new JLabel("组合边框"));
		panel.add(p8);

		JScrollPane scrollPane = new JScrollPane(panel);
		scrollPane.setPreferredSize(new Dimension(300, 300));
		frame.getContentPane().add(panel);
		frame.pack();
		frame.show();
	}
}