CODEWITHSUNDEEP
javaswinguser-interfacenetbeans
user2279546
user2279546

Reputation:

NetBeans GUI Builder - Add a whole directory of images to another specific directory, so the images will be imported there

I am currently building an application, where I want a whole directory to be imported in another one. I am working with apache commons.io library that you need to import a s a jar file.

Let's say from a directory that I will choose with a JfileChooser from GuiBuilder Netbeans into C:\output. I want all the images to be imported there. My code is not running. When I am pressing JButton2 ( the button responsible for loading a directory I get an exception

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at WebAppImg.jButton2ActionPerformed(WebAppImg.java:141) ( The second line points out to : String filename = f.getAbsolutePath(); )

copyDirectoryToDirectory method maybe. But my thoughts on doing that was that when putting FileSelectionMode to be Directories_Only that the absolute path would be something like C:\importFile and not C:\importFile\image1.jpg for example so it would not be wrong. But maybe this is the mistake?

So far, this is my code.

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    // TODO add your handling code here:(for importing a whole directory(folder) from C:\images1 into C:\output ).        
    JFileChooser chooser = new JFileChooser();
    chooser = new JFileChooser(); 
    //chooser.setCurrentDirectory(new java.io.File("."));
    //chooser.setDialogTitle(choosertitle);
    chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
    //chooser.showOpenDialog(null);
    //chooser.setAcceptAllFileFilterUsed(false);

    File f = chooser.getSelectedFile();

    String filename = f.getAbsolutePath();
try {

    File srcDir = new File(filename);
    File destDir = new File("C:/output/");

    FileUtils.copyDirectoryToDirectory(srcDir, destDir);

}
    catch (Exception ex) {
    ex.printStackTrace();
}
}

Upvotes: 1

Views: 1035

Answers (2)

moskito-x
moskito-x

Reputation: 11968

Try this.

 private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    JFileChooser chooser = new JFileChooser();
    chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
    chooser.showOpenDialog(null);
    File f = chooser.getSelectedFile();
    String SourceDir = f.getAbsolutePath();
try {

    File srcDir = new File(SourceDir);
    File destDir = new File("C:/output/");

    FileUtils.copyDirectoryToDirectory(srcDir, destDir);

}
    catch (Exception ex) {
    ex.printStackTrace();
}
}

Upvotes: 0

John Yeary
John Yeary

Reputation: 1113

I believe that you are not using the correct FileUtils method. Please try using copyDirectory(File srcDir, File destDir);

UPDATE

If you want to copy all the files in the src directory use the method above. If you want to copy the directory let's say C:\images to C:\COPIED the copyDirectoryToDirectory(File srcDir, File destDir); will result in C:\COPIED\images since it copies the whole directory into another directory.

Here is my working example...

private void jFileChooser1ActionPerformed(java.awt.event.ActionEvent evt) {                                              
  File src =  jFileChooser1.getSelectedFile();
  File dest = new File("C:\\COPIED");
    System.out.println(src.getAbsolutePath());
    System.out.println(dest.getAbsolutePath());
    try {
        FileUtils.copyDirectory(src, dest);
        //FileUtils.copyDirectoryToDirectory(src, dest);
    } catch (IOException ex) {
        Logger.getLogger(FileChoosingFrame.class.getName()).log(Level.SEVERE, null, ex);
    }
}

Here is a working example: stackoverflow-jchooser.zip It should only be used as a starting point. The copying should be done in a separate thread instead of the EDT.

Upvotes: 1

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