如何修改Swing程序中按钮的默认外观

说明

以下示例展示了如何修改Swing程序中按钮的默认外观。

我们正在使用以下 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和感觉。

代码示例

package com.yiidian;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

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("一点教程网：Swing Tester");
      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("Ok");
      JButton cancelButton = new JButton("Cancel");
      cancelButton.setEnabled(false);
      JButton submitButton = new JButton("Submit");

      okButton.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
            JOptionPane.showMessageDialog(frame, "Ok Button clicked.");
         }
      });

      submitButton.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
            JOptionPane.showMessageDialog(frame, "Submit Button clicked.");
         }
      });

      frame.getRootPane().setDefaultButton(submitButton);

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

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

执行效果如下：