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);}}

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