重点组件参考

根据您的确切上下文，您可能考虑使用自定义TextAction：其方法

getTextComponent(ActionEvent)

    Action logSelected = new TextAction("log selected") {        @Override        public void actionPerformed(ActionEvent e) { JTextComponent text = getTextComponent(e); System.out.println("selected: " + text.getSelectedText());        }    };    JComponent content = new JPanel();    content.add(new JTextField("sometext", 20));    content.add(new JTextField("other content", 20));    content.add(new JCheckBox("just some focusable comp"));    content.add(new JButton(logSelected));