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我尝试熟悉java中的拖放，但我发现的所有教程都是......（让我生气）

我想要的只是从 JList（包含在名为“UserPanel”的自制 JPanel 中）拖动“PublicUserLabel”并将其放入从 JTabbedPanel 继承的自制类中。拖动对象本身而不是其字符串表示非常重要！

这就是我到目前为止所拥有的：PublicUserLabel

public class PublicUserLabel extends JLabel implements DragSourceListener, DragGestureListener, Transferable
    {
        private DragSource ds;
        private PublicUser user;

        public PublicUserLabel(PublicUser user)
        {
            super(user.getName());
            this.user = user;
            ds = new DragSource();
            ds.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY_OR_MOVE, this);
        }

        @Override
        public void dragGestureRecognized(DragGestureEvent e)
        {
            ds.startDrag(e, DragSource.DefaultCopyDrop, this, this);
        }

        @Override
        public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException
        {
            if (flavor.equals(PublicUserFlavor.publicUserFlavor))
            {
                return this;//TODO ?
            }
            throw new UnsupportedFlavorException(flavor);
        }

        @Override
        public DataFlavor[] getTransferDataFlavors()
        {
            DataFlavor[] df = new …