java中如何从一个窗口通过点击按钮进入另外一个窗口？ （两个窗口不在一个class中。）

Posted 2023-05-17

要写两个窗体，第一个窗体：
import javax.swing.SwingUtilities;
import javax.swing.JPanel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JFrame;
import javax.swing.JButton;
import java.awt.Rectangle;

public class Frame1 extends JFrame implements ActionListener

private static final long serialVersionUID = 1L;

private JPanel jContentPane = null;

private JButton jButton = null;

public void actionPerformed(ActionEvent arg0)
Frame2 f2=new Frame2(this);
f2.setVisible(true);
this.setVisible(false);

private JButton getJButton()
if (jButton == null)
jButton = new JButton();
jButton.setBounds(new Rectangle(92, 62, 105, 35));
jButton.setText("进入子窗体");
jButton.addActionListener(this);

return jButton;

public static void main(String[] args)
// TODO 自动生成方法存根
SwingUtilities.invokeLater(new Runnable()
public void run()
Frame1 thisClass = new Frame1();
thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
thisClass.setVisible(true);

);

public Frame1()
super();
initialize();

private void initialize()
this.setSize(300, 200);
this.setContentPane(getJContentPane());
this.setTitle("主窗体");

private JPanel getJContentPane()
if (jContentPane == null)
jContentPane = new JPanel();
jContentPane.setLayout(null);
jContentPane.add(getJButton(), null);

return jContentPane;



第二个窗体（可以从第一个窗体进入第二个窗体，也可从第二个窗体回到第一个窗体）
import javax.swing.SwingUtilities;
import javax.swing.JPanel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;

import javax.swing.JFrame;
import javax.swing.JButton;
import java.awt.Rectangle;

public class Frame2 extends JFrame implements ActionListener, WindowListener

private static final long serialVersionUID = 1L;

private JPanel jContentPane = null;

private JButton jButton = null;

private Frame1 f1=null;

public void actionPerformed(ActionEvent arg0)
f1.setVisible(true);
this.setVisible(false);


private JButton getJButton()
if (jButton == null)
jButton = new JButton();
jButton.setBounds(new Rectangle(85, 48, 105, 39));
jButton.setText("回到主窗体");
jButton.addActionListener(this);

return jButton;

public static void main(String[] args)
// TODO 自动生成方法存根
SwingUtilities.invokeLater(new Runnable()
public void run()
Frame2 thisClass = new Frame2();
thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
thisClass.setVisible(true);

);

public Frame2()
super();
initialize();


public Frame2(Frame1 f)
this();
f1=f;

private void initialize()
this.setSize(300, 200);
this.setContentPane(getJContentPane());
this.setTitle("子窗体");
this.addWindowListener(this);

private JPanel getJContentPane()
if (jContentPane == null)
jContentPane = new JPanel();
jContentPane.setLayout(null);
jContentPane.add(getJButton(), null);

return jContentPane;


public void windowActivated(WindowEvent arg0)


public void windowClosed(WindowEvent arg0)


public void windowClosing(WindowEvent arg0)
f1.setVisible(true);


public void windowDeactivated(WindowEvent arg0)


public void windowDeiconified(WindowEvent arg0)


public void windowIconified(WindowEvent arg0)


public void windowOpened(WindowEvent arg0)

参考技术A 在action的监听中直接new另外窗口即可

如何在java程序中，当点击一个按钮后，关闭当前窗口，开启一个新的窗口？

JButton btn=new JButton(new AbstractAction("关闭并打开")       @Override   public void actionPerformed(ActionEvent e)       oldFrame.dispose();// 关闭并销毁，无需销毁可采用oldFrame.setVisible(false);      newFrame.setVisible(true);// 打开新窗口   );

import javax.swing.*;

import java.awt.Rectangle;

import java.awt.event.*;

public class Swing7 extends JFrame implements ActionListener

JButton jb = new JButton();

public Swing7()

this.setTitle("Java——");

jb.setText("确定");

jb.setMnemonic('a');

this.add(jb);

this.setBounds(200, 300, 250, 300);

ctionListener就是Swing7实例。

public void actionPerformed(ActionEvent e) // 实现ActionListener接口的actionPerformed接口。

JFrame frame = new JFrame("新窗口");//构造一个新的JFrame，作为新窗口。

frame.setBounds(// 让新窗口与Swing7窗口示例错开50像素。

new Rectangle(

(int) this.getBounds().getX() + 50,

(int) this.getBounds().getY() + 50,

(int) this.getBounds().getWidth(),

(int) this.getBounds().getHeight()
)
);

JLabel jl = new JLabel();// 注意类名别写错了。

frame.getContentPane().add(jl);

jl.setText("这是新窗口");

jl.setVerticalAlignment(JLabel.CENTER);
jl.setHorizontalAlignment(JLabel.CENTER);// 注意方法名别写错了。
frame.setVisible(true);

public static void main(String args[])
Swing7 s = new Swing7();

参考技术A

假设本身是Form1，第二个窗口是Form2，你双击按钮进入那个按钮的点击事件，编写以下代码：
Form2 f2=new Form2();
f2.Show();
this.Hide();

简单的程序代码，运用代码就可以完美解决