复制代码 代码如下:
package com.hongyuan.gui;

import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class PlafTest {

public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {

@Override
public void run() {
PlafFrame frame=new PlafFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
});
}

}

class PlafFrame extends JFrame
{
private JPanel buttonPanel;
public PlafFrame(){
this.setTitle("PlafTest");
this.setSize(400, 300);

buttonPanel=new JPanel();
//查询观感并生成按钮
UIManager.LookAndFeelInfo[] infos=UIManager.getInstalledLookAndFeels();
for(UIManager.LookAndFeelInfo info:infos){
makeButton(info.getName(),info.getClassName());
}

this.add(buttonPanel);
}
void makeButton(String name,final String plafName){

JButton button=new JButton(name);
buttonPanel.add(button);

button.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent e) {
try {
//设置观感并更新组件
UIManager.setLookAndFeel(plafName);
SwingUtilities.updateComponentTreeUI(PlafFrame.this);
} catch (ClassNotFoundException | InstantiationException
| IllegalAccessException
| UnsupportedLookAndFeelException e1) {
e1.printStackTrace();
}
}
});
}
}