如何使用ActionEvent获取ENTER键的KeyStroke？

Question

我正在用Java编写一个应用程序，其中当用户按字母键时需要发生一件事，当用户按ENTER键时需要做一些不同的事情，但当我按ENTER键时似乎无法获得键名，只能换一行。

我认为我应该使用getKeyStroke，但我不确定这是否可能，因为我使用的是ActionEvent。

这就是我到目前为止所做的：

panelMaster.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke("A"), "doSomething");
panelMaster.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke("B"), "doSomething");
panelMaster.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke("C"), "doSomething");
panelMaster.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke( "ENTER" ), "doSomething");
panelMaster.getActionMap().put("doSomething", anAction);

然后我有一个单独的Action类。

class AnAction extends AbstractAction{        
    public void actionPerformed(ActionEvent e) {
        System.out.println("Received: " + e.getActionCommand());
    }    
}

当我输入两个序列"a“，然后是"b”，然后是"c“，然后是"ENTER”，我的输出是这样的：

Received: a
Received: b
Received: c
Received: 

Received: a
Received: b
Received: c
Received: 

Answer 1

可以使用KeyStroke.getKeyStroke(KeyEvent.VK_ENTER，0)

Answer 2

试试这个：

panelMaster.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT)
           .put(KeyStroke.getKeyStroke( "pressed ENTER" ), "doSomething");
panelMaster.getActionMap().put("doSomething", anAction);