关于TC中的复制粘贴问题

nameTJTextField.addKeyListener(new KeyListener(){

					@Override
					public void keyPressed(KeyEvent e) {}

					@Override
					public void keyReleased(KeyEvent e) {
						
						 System.out.println("keycode"+e.getKeyCode());
						if(e.getKeyCode()==KeyEvent.VK_CONTROL&&e.getKeyCode() == KeyEvent.VK_C ||e.isControlDown()&&e.getKeyCode() == KeyEvent.VK_C|| (!e.isControlDown())&&e.getKeyCode() == KeyEvent.VK_C)
						  {
								System.out.println("复制事件");
								Clipboard clipboard =  Toolkit.getDefaultToolkit().getSystemClipboard(); //获得系统粘贴板   
								String selectStr="";
								if(nameTJTextField instanceof JTextField){
									selectStr=((JTextField)nameTJTextField).getSelectedText();
								}
								System.out.println("复制文本:" + selectStr);
								StringSelection textInfoSelected = new StringSelection(selectStr); //建立一个粘贴板内容实例.   
								clipboard.setContents(textInfoSelected, null); //将textInfoSelected加入到粘贴板中; 
								AIFClipboard aifclipboard = AIFPortal.getClipboard();
								aifclipboard.clearClipboard();
								
						  }
					}

					@Override
					public void keyTyped(KeyEvent arg0) {
						System.out.println("33333");
					}

					
				});