什么是Java中的Form加载事件处理程序？

Question

Java中的事件处理程序（使用网络bean）在C＃中类似于From_Load是什么？

Answer 1

如果你正在使用Swing的JFrame，请尝试使用addWindowListener（继承自java.awt.Window）

监听器的windowOpened方法看起来就像你想要的那样......

Answer 2

这个简单的样本很有用。

public static void main(String[] args) {

    JFrame fa = new JFrame();
    fa.setBounds(100, 100, 400, 200);
    fa.setVisible(true);
    fa.addWindowListener(new WindowListener() {

        @Override
        public void windowOpened(WindowEvent e) {
            JOptionPane.showMessageDialog(fa, "windowOpened");
        }

        @Override
        public void windowClosing(WindowEvent e) {
            JOptionPane.showMessageDialog(fa, "windowClosing");
        }

        @Override
        public void windowClosed(WindowEvent e) {
            JOptionPane.showMessageDialog(fa, "windowClosed");
        }

        @Override
        public void windowIconified(WindowEvent e) {
            JOptionPane.showMessageDialog(fa, "windowIconified");
        }

        @Override
        public void windowDeiconified(WindowEvent e) {
            JOptionPane.showMessageDialog(fa, "windowDeiconified");
        }

        @Override
        public void windowActivated(WindowEvent e) {
        //                JOptionPane.showMessageDialog(fa, "windowActivated");
        }

        @Override
        public void windowDeactivated(WindowEvent e) {
        //                JOptionPane.showMessageDialog(fa, "windowDeactivated");
        }
    });
}

Answer 3

虽然接受的答案基于底层 WindowListener 接口（这迫使您为您可以使用的每种类型的事件提供实现），但您可以在其中覆盖相应的事件的 WindowAdapter有兴趣。

public class MySwingJFrame extends JFrame {
    public MySwingJFrame() {
        addWindowListener(new WindowAdapter() {
            @Override
            public void windowOpened(WindowEvent e) {
                // do something
            }
        });
    }
}