Java Swing JFileChooser 过滤器不适用于 sqlite

Question

I copied and modified an example from here . I changed it for sqlite. I am looking at a directory with.app, .jar, and.sqlite files. The.jar files are grayed out, but.sqlite and.app files are selectable. Why is the filter not making the.app files not selectable? I only want.sqlite to be selectable. I am running this on Mac OS X.

package org.todivefor.filechooser4;

import javax.swing.JFileChooser;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.filechooser.FileSystemView;

public class FileChooser4 {

    public static void main(String[] args) {

        JFileChooser jfc = new JFileChooser(FileSystemView.getFileSystemView().getHomeDirectory());
        jfc.setDialogTitle("Select DB");
        jfc.setAcceptAllFileFilterUsed(false);
        FileNameExtensionFilter filter = new FileNameExtensionFilter("SQLite DB", "sqlite");
        jfc.addChoosableFileFilter(filter);

        int returnValue = jfc.showOpenDialog(null);
        if (returnValue == JFileChooser.APPROVE_OPTION) {
            System.out.println(jfc.getSelectedFile().getPath());
        }
    }
}

EDIT:

First, I don't think I understood how this was to work. I thought by specifying a filter with sqlite, I would not see anything without an.sqlite extension. In my testing, I find I can see files of all extensions, but can only select those with.sqlite. I tried my code above on both Mac OS X and Windows and saw different results. On Windows, I saw both.app and.sqlite files, but I could only select.sqlite files. On Mac OS X, I saw both.app and.sqlite files and could select either. I am not sure why this is, but has something to do with look and feel. On both Windows and Mac, I do not specify a look and feel, so I guess I get the default. On Windows, the.app files appear as folders. Whereas on Mac, they appear as files (still don't know why they are selectable). The application where I am using this, I control the L&F, and It works the way I expect, except for the Mac OS X L&F where I can select a.app extension file.

Answer 1

I'm on Windows and the code you posted seem to be working. It may be a bug with Java. Is your Java up to date?