javaswing监听器调出文件管理器

您可以使用JFileChooser类来调出文件管理器。以下是一个简单的示例代码：

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class FileChooserDemo {
  private JFrame frame;
  private JPanel panel;
  private JButton button;

  public FileChooserDemo() {
    frame = new JFrame("File Chooser Demo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    panel = new JPanel();

    button = new JButton("Open File Chooser");
    button.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        JFileChooser fileChooser = new JFileChooser();
        int option = fileChooser.showOpenDialog(frame);
        if (option == JFileChooser.APPROVE_OPTION) {
          System.out.println("Selected file: " + fileChooser.getSelectedFile().getAbsolutePath());
        } else {
          System.out.println("File chooser dialog canceled");
        }
      }
    });

    panel.add(button);
    frame.add(panel);
    frame.pack();
    frame.setVisible(true);
  }

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

运行代码后，单击“Open File Chooser”按钮即可调出文件管理器。选中文件后，程序将打印文件的绝对路径。