Question

JAVA选择文件夹路径，该怎么解决

Answer 1

用JFileChooser，并且setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);

Java codepublic class DemoJFileChooser extends JPanel
implements ActionListener {
JButton go;

JFileChooser chooser;
String choosertitle;

public DemoJFileChooser() {
go = new JButton("Do it");
go.addActionListener(this);
add(go);
}

public void actionPerformed(ActionEvent e) {
int result;

chooser = new JFileChooser();
chooser.setCurrentDirectory(new java.io.File("."));
chooser.setDialogTitle(choosertitle);
chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
//
// disable the "All files" option.
//
chooser.setAcceptAllFileFilterUsed(false);
//
if (chooser.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {
System.out.println("getCurrentDirectory(): "
+ chooser.getCurrentDirectory());
System.out.println("getSelectedFile() : "
+ chooser.getSelectedFile());
}
else {
System.out.println("No Selection ");
}
}

public Dimension getPreferredSize(){
return new Dimension(200, 200);
}

public static void main(String s[]) {
JFrame frame = new JFrame("");
DemoJFileChooser panel = new DemoJFileChooser();
frame.addWindowListener(
new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
}
);
frame.getContentPane().add(panel,"Center");
frame.setSize(panel.getPreferredSize());
frame.setVisible(true);
}
}