为什么Scrollpane不自动出现滚动条???
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private String path="e:\\test.jpg";
private JPanel PaneImageView = new JPanel();
private BorderLayout borderLayout2 = new BorderLayout();
private JLabel imageview=new JLabel();
private JScrollPane ScrollPaneImage= new JScrollPane();
private void initPaneImageView()
{
ImageIcon im=new ImageIcon(path);
imageview.setIcon(im);
ScrollPaneImage.setViewportView(imageview);
ScrollPaneImage.setAutoscrolls(true);
PaneImageView.setLayout(borderLayout2);
PaneImageView.add(ScrollPaneImage, BorderLayout.NORTH);
}