如何在java中獲得父面板？

我已經創建了3個面板。在根面板中，我添加了JTabbedPane，其中一個選項卡中添加了第二個Panel和BorderLayout，最後在BorderLayout.WEST第三個中。在第三個裏面我添加了一個JTree和PopupMenu。如何在java中獲得父面板？

如何獲取根面板內部操作執行PopupMenu？

menuItem.addActionListener(new AbstractAction() { 
    public void actionPerformed(ActionEvent e) { 
     System.out.println("one:"+tree.getParent().getName()); 
     System.out.println("two:"+tree.getParent().getParent().getName()); 
     System.out.println("three:"+tree.getParent().getParent().getParent().getName()); 
     new UnzipFile(file, file.getParentFile(), 
     (rootPanel) tree.getParent().getParent().getParent()).run(); 
    } 
});

輸出：

Exception in thread "AWT-EventQueue-1" java.lang.ClassCastException: de.util.scanners.view.FileTreePanel 
at de.util.scanners.view.FileTreePanel$2$1.actionPerformed(FileTreePanel.java:109) 
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) 
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) 
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) 
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) 
at javax.swing.AbstractButton.doClick(AbstractButton.java:302) 
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1050) 
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1091) 
at java.awt.Component.processMouseEvent(Component.java:5517) 
at javax.swing.JComponent.processMouseEvent(JComponent.java:3129) 
at java.awt.Component.processEvent(Component.java:5282) 
at java.awt.Container.processEvent(Container.java:1966) 
at java.awt.Component.dispatchEventImpl(Component.java:3984) 
at java.awt.Container.dispatchEventImpl(Container.java:2024) 
at java.awt.Component.dispatchEvent(Component.java:3819) 
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) 
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) 
one:null 
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) 
two:null 
three:null 
at java.awt.Container.dispatchEventImpl(Container.java:2010) 
at java.awt.Window.dispatchEventImpl(Window.java:1791) 
at java.awt.Component.dispatchEvent(Component.java:3819) 
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) 
at be.azvub.webutil.gui.WebEventQueue.dispatchEvent(WebEventQueue.java:34) 
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) 
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) 
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) 
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) 
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)

來源

2012-05-02 itro

你還應該顯示你得到的輸出...... –

在任何情況下，父面板的相關性如何？當然彈出窗口應該設置在相對於生成它的組件的位置！ –