我怎样才能在Java中实现这种可扩展的布局？ 灵活的BoxLayout等

我希望能够有三个JPanels p1 p2和p3，并让它们像这样布局：

我一直在玩FlowLayout，BoxLayout等，但我不确定我是否朝着正确的方向前进。 我是Java的新手，所以如果我很诚实，我不知道会发生什么。

我喜欢BoxLayout如何工作，调整面板大小，但我希望能够给它一些宽度属性。

我没有使用视觉设计师，这是我目前的窗口代码：

private void initialize() { Dimension dimensions = Toolkit.getDefaultToolkit().getScreenSize(); frame = new JFrame(); frame.setLayout(new GridLayout(1, 3)); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setBounds(dimensions.width / 2 - WINDOW_WIDTH / 2, dimensions.height / 2 - WINDOW_HEIGHT / 2, WINDOW_WIDTH, WINDOW_HEIGHT); JPanel p1 = new JPanel(new BorderLayout()); p1.setBackground(Color.red); JPanel p2 = new JPanel(new BorderLayout()); p2.setBackground(Color.black); JPanel p3 = new JPanel(new BorderLayout()); p3.setBackground(Color.blue); frame.add(p2); frame.add(p1); frame.add(p3); } 

任何指针赞赏！

编辑：感谢mKorbel，我已经设法让它按照我想要的方式工作。 正确的列没有完全按照我要做的那样布局，但实际上我改变了主意并决定保留其他布局。

代码：

 import java.awt.*; import javax.swing.*; public class PanelWindow extends JFrame { private static final long serialVersionUID = 1L; private static final int WINDOW_HEIGHT = 600; private static final int WINDOW_WIDTH = 800; private JPanel p1, p2, p3; public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { PanelWindow panelWindow = new PanelWindow(); } }); } public PanelWindow() { initialize(); } private void initialize() { setLayout(new GridBagLayout()); GridBagConstraints gbc = new GridBagConstraints(); p1 = new JPanel(); p1.setBackground(Color.red); p2 = new JPanel(); p2.setBackground(Color.green); p3 = new JPanel(); p3.setBackground(Color.blue); gbc.gridx = gbc.gridy = 0; gbc.gridwidth = gbc.gridheight = 1; gbc.fill = GridBagConstraints.BOTH; gbc.anchor = GridBagConstraints.NORTHWEST; gbc.weightx = gbc.weighty = 97; gbc.insets = new Insets(2, 2, 2, 2); add(p1, gbc); gbc.gridy = 1; gbc.weightx = gbc.weighty = 3; gbc.insets = new Insets(2, 2, 2, 2); add(p2, gbc); gbc.gridx = 1; gbc.gridy = 0; gbc.gridwidth = 1; gbc.gridheight = 2; gbc.weightx = 20; gbc.insets = new Insets(2, 2, 2, 2); add(p3, gbc); pack(); setVisible(true); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Dimension dimensions = Toolkit.getDefaultToolkit().getScreenSize(); setBounds(dimensions.width / 2 - WINDOW_WIDTH / 2, dimensions.height / 2 - WINDOW_HEIGHT / 2, WINDOW_WIDTH, WINDOW_HEIGHT); setTitle("Panel Window"); } } 

Answer 1

一个字： MigLayout 。 如您所见，标准布局管理器可以实现。 但我可以向你保证，使用MigLayout将布局代码减少到4行…（虽然它需要一些时间才能进入MigLayout，因为它的工作方式与通常的布局管理器有点不同）。

Answer 2

不是我最喜欢的LayoutManager ，例如使用GridBagLayout ，最简单的可能是使用MigLayout ，也许……

 import java.awt.*; import javax.swing.*; import javax.swing.border.*; public class BorderPanels extends JFrame { private static final long serialVersionUID = 1L; public BorderPanels() { setLayout(new GridBagLayout());// set LayoutManager GridBagConstraints gbc = new GridBagConstraints(); JPanel panel1 = new JPanel(); Border eBorder = BorderFactory.createEtchedBorder(); panel1.setBorder(BorderFactory.createTitledBorder(eBorder, "70pct")); gbc.gridx = gbc.gridy = 0; gbc.gridwidth = gbc.gridheight = 1; gbc.fill = GridBagConstraints.BOTH; gbc.anchor = GridBagConstraints.NORTHWEST; gbc.weightx = gbc.weighty = 70; add(panel1, gbc); // add compoenet to the COntentPane JPanel panel2 = new JPanel(); panel2.setBorder(BorderFactory.createTitledBorder(eBorder, "30pct")); gbc.gridy = 1; gbc.weightx = gbc.weighty = 30; gbc.insets = new Insets(2, 2, 2, 2); add(panel2, gbc); // add component to the COntentPane JPanel panel3 = new JPanel(); panel3.setBorder(BorderFactory.createTitledBorder(eBorder, "20pct")); gbc.gridx =1; gbc.gridy = 0; gbc.gridwidth = /*gbc.gridheight = */1; gbc.gridheight = 2; gbc.weightx = /*gbc.weighty = */20; gbc.insets = new Insets(2, 2, 2, 2); add(panel3, gbc); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // important pack(); setVisible(true); // important } public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater(new Runnable() { // important public void run() { BorderPanels borderPanels = new BorderPanels(); } }); } }