Java 边框类型setBorder BorderFactory

一、线边框、蚀刻边框、斜面边框、标题边框、组合边框

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

public
class  BorderDemo {

    public static  void  main(String[] args) {

        JFrame frame = new JFrame("Swing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.setVisible(true);

    }

}

二、创建一个边框类：

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import javax.swing.border.LineBorder;

/**
 * @author user 
 *   边框设置	
 */

public class TextBorderUtlis extends LineBorder 
{

	private static final long serialVersionUID = 1L;

	public TextBorderUtlis(Color color, int thickness, boolean roundedCorners) 
	{
		super(color, thickness, roundedCorners);
	}

	public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) 
	{

		RenderingHints rh = new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		Color oldColor = g.getColor();
		Graphics2D g2 = (Graphics2D) g;
		int i;
		g2.setRenderingHints(rh);
		g2.setColor(lineColor);
		for (i = 0; i < thickness; i++) 
		{
			if (!roundedCorners){
				g2.drawRect(x + i, y + i, width - i - i - 1, height - i - i - 1);
			}else{
				g2.drawRoundRect(x + i, y + i, width - i - i - 1, height - i - i - 1, 5, 5);}
		}
		g2.setColor(oldColor);
	}

}