Swing如何修改按钮默认外观？

下面的示例展示了如何在Java Swing应用程序中修改按钮的默认外观。

使用以下API -

• UIManager.setLookAndFeel() - 更改java应用程序的当前外观。
• UIManager.getSystemLookAndFeelClassName() - 获取当前操作系统的外观。

示例

package com.zaixian.swingdemo;

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.LayoutManager;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

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

public class SwingTester {
   public static void main(String[] args) 
      throws ClassNotFoundException, InstantiationException
      , IllegalAccessException, UnsupportedLookAndFeelException {
      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
      createWindow();
   }

   private static void createWindow() {    
      JFrame frame = new JFrame("Swing修改按钮默认样式(xuhuhu.com)");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

      createUI(frame);
      frame.setSize(560, 200);      
      frame.setLocationRelativeTo(null);  
      frame.setVisible(true);
   }

   private static void createUI(final JFrame frame){  
      JPanel panel = new JPanel();
      LayoutManager layout = new FlowLayout();  
      panel.setLayout(layout);       

      JButton okButton = new JButton("确定");
      JButton cancelButton = new JButton("取消");
      cancelButton.setEnabled(false);
      JButton submitButton = new JButton("提交");

      okButton.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
            JOptionPane.showMessageDialog(frame, "点击了确定按钮");
         }
      });

      submitButton.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
            JOptionPane.showMessageDialog(frame, "点击了提交按钮");
         }
      });

      frame.getRootPane().setDefaultButton(submitButton);

      panel.add(okButton);
      panel.add(cancelButton);
      panel.add(submitButton);

      frame.getContentPane().add(panel, BorderLayout.CENTER);    
   }
}

执行上面示例代码，得到以下结果: