package test5.test5_1;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.UIManager;

public class FileChooser extends JFrame implements ActionListener {
	JButton open = null;

	public static void main(String[] args) {
		new FileChooser();
	}

	public FileChooser() {
		open = new JButton("打开");
		this.add(open);
		this.setBounds(400, 200, 100, 100);
		this.setVisible(true);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		open.addActionListener(this);

		//更改默认的选择文件的外观为windows的风格
		if (UIManager.getLookAndFeel().isSupportedLookAndFeel()) {
			final String platform = UIManager.getSystemLookAndFeelClassName();
			if (!UIManager.getLookAndFeel().getName().equals(platform)) {
				try {
					UIManager.setLookAndFeel(platform);
				} catch (Exception exception) {
					exception.printStackTrace();
				}
			}
		}
		
		
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		JFileChooser jfc = new JFileChooser();
		jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
		jfc.showDialog(new JLabel(), "请选择附件");
		File file = jfc.getSelectedFile();
		if (file.isDirectory()) {
			System.out.println("文件夹:" + file.getAbsolutePath());
		} else if (file.isFile()) {
			System.out.println("文件:" + file.getAbsolutePath());
		}
		System.out.println(jfc.getSelectedFile().getName());

	}

}

更改后的：

未更改的：