又是100分。请大虾指点

Question

可以使用JFileChooser类,里面可以将对话框设计成为Customer的样式,而不用open/save的样式.

Answer 1

JFileChooser chooser = new JFileChooser();
chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
//有FILES_ONLY,FILES_AND_DIRECTORIES,DIRECTORIES_ONLY
showDialog(new JFrame(),"选择");

Answer 2

我做了一个演示程序，它实现了你提到的功能，你试用一下，愿对你有用。原代码如下：import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.filechooser.*;public class FileChooserDemo extends JFrame {
    static private String newline = "\n";    public FileChooserDemo() {
        super("FileChooserDemo");        //Create the log first, because the action listener
        //needs to refer to it.
        final JTextArea log = new JTextArea(20,40);
        log.setMargin(new Insets(5,5,5,5));
        log.setEditable(false);
        JScrollPane logScrollPane = new JScrollPane(log);        JButton sendButton = new JButton("Select path...");
        sendButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                JFileChooser fc = new JFileChooser();
                fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);                int returnVal = fc.showDialog(FileChooserDemo.this,
                                              "Select");
                if (returnVal == JFileChooser.APPROVE_OPTION) {
                    File file = fc.getSelectedFile();
                    //+++++++++++++++++++++
                    log.append("Selected path: " + file.getAbsolutePath());
                    log.append("\n");
                    //++++++++++++++++++++++
                } else {
                    log.append("Attachment cancelled by user." + newline);
                }
            }
        });        Container contentPane = getContentPane();
        contentPane.add(sendButton, BorderLayout.NORTH);
        contentPane.add(logScrollPane, BorderLayout.CENTER);
    }    public static void main(String[] args) {
        JFrame frame = new FileChooserDemo();
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });        frame.pack();
        frame.setVisible(true);
    }
}