记录java桌面程序swing布局的痛心

偏执的太偏执、 2022-05-24 03:55 238阅读 0赞

最近需要做一些桌面程序，因为我比较擅长的语言是java，php；只能选择java来做，于是先仿照一些桌面程序来布局练下手，下面就是代码记录了，讲真过程有点痛苦，一度的想换javafx，但是群里朋友说，javafx是属于oracle jre协议里面的，要小心使用，于是选择了免费并且没有后顾之忧的swing。

算了直接上代码了，里面的就是简单的布局和调整，使用了swing的美化包substance.jar。

package com.qianku.project;
    
    import java.awt.BorderLayout;
    import java.awt.Color;
    import java.awt.Dimension;
    import java.awt.EventQueue;
    import java.awt.FlowLayout;
    import java.awt.Graphics;
    import java.awt.Image;
    import java.awt.Toolkit;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    
    import javax.swing.BorderFactory;
    import javax.swing.ImageIcon;
    import javax.swing.JButton;
    import javax.swing.JDialog;
    import javax.swing.JFrame;
    import javax.swing.JLabel;
    import javax.swing.JPanel;
    import javax.swing.JTextField;
    import javax.swing.UIManager;
    import javax.swing.UnsupportedLookAndFeelException;
    import javax.swing.border.EmptyBorder;
    
    
    
    public class Login extends JFrame{
    	
    	public   JFrame frame;
    	
    	// 得到显示器屏幕的宽高
        public int width = Toolkit.getDefaultToolkit().getScreenSize().width;
        public int height = Toolkit.getDefaultToolkit().getScreenSize().height;
    	// 定义窗体的宽高
        public int windowsWedth = 662;
        public int windowsHeight = 442;
    	
    	private  void initialize() {
    		frame = this;
    		frame.setLayout(new BorderLayout(2,2));
    		
    		JPanel topPanel = new TopPanel("image/logintitle_bg.png");
    		topPanel.setBackground(Color.red);
    		JPanel leftPanel =  new JPanel();
    		leftPanel.setBackground(Color.white);
    		JPanel rightPanel =  new JPanel();
    		rightPanel.setBackground(Color.white);
    		rightPanel.setLayout(null);
    		frame.add("North", topPanel);     //将按钮添加到窗口中
    		frame.add("East",  rightPanel);
    		frame.add("Center",leftPanel);
    		
    		JLabel label = new JLabel();
    		ImageIcon icon = new ImageIcon("image/login_banner.png");
    		label.setIcon(icon);
    		leftPanel.add(label);
    		
    		JLabel label01 = new JLabel("帐号登录");
    		label01.setBounds(50, 20, 200, 20);
    		JTextField name = new JTextField();
    		name.setBounds(50, 100, 200, 20);
    		name.setColumns(20);
    		JTextField pass = new JTextField();
    		pass.setBounds(50, 130, 200, 20);
    		pass.setColumns(20);
    		//登陆按钮
    		JButton loginBtn = new JButton("登录");
    		loginBtn.setBounds(50, 160, 200, 40);
    		
    		rightPanel.add(label01);
    		rightPanel.add(name);
    		rightPanel.add(pass);
    		rightPanel.add(loginBtn);
    		
    		topPanel.setPreferredSize(new Dimension(0, 80));
    		rightPanel.setPreferredSize(new Dimension(300, 0));
            frame.setBounds((width - windowsWedth) / 2,
            		(height - windowsHeight) / 2, windowsWedth, windowsHeight);
            //设置去掉边框  
            //frame.setUndecorated(true);  
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.setVisible(true);
    		
            loginBtn.addActionListener(new ActionListener() {
    			
    			@Override
    			public void actionPerformed(ActionEvent e) {
    				
    				new MainFrame().initialize();
    				
    			}
    		});
    		
    	}
    	
    	
    	public static void main(String[] args) {
    		
    		
    		EventQueue.invokeLater(new Runnable() {
    			@Override
    			public void run() {
    				JFrame.setDefaultLookAndFeelDecorated(true);
    				JDialog.setDefaultLookAndFeelDecorated(true);
    				try {
    					/*
    					 * 想要修改皮肤的话，只需要更改，下面这个函数的参数，具体改成什么样，可以打开，Referenced Libraries -> 点击substance.jar -> 找到org.jvnet.substance.skin这个包  -> 将下面的SubstanceDustCoffeeLookAndFeel 替换成 刚刚打开的包下的任意一个“Substance....LookAndFeel”即可
    					 */
    					UIManager.setLookAndFeel(new org.jvnet.substance.skin.SubstanceBusinessLookAndFeel());
    				} catch (Exception e) {
    					// TODO Auto-generated catch block
    					e.printStackTrace();
    				}
    				Login login = new Login();
    				login.initialize();
    			}
    		});
    	}
    	
    
    }
    
    class TopPanel extends JPanel
    {
    	private ImageIcon pic;  
        private Image image;  
        private int width;  
        private int height;  
          
        public TopPanel(String imgUrl) {  
            pic = new ImageIcon(imgUrl);  
            image = pic.getImage();  
            width = pic.getIconWidth();  
            height = pic.getIconHeight();  
            this.setSize(width, height);  
        }  
        @Override  
        public void paint(Graphics arg0) {  
            super.paint(arg0);  
            arg0.drawImage(image, 0, 0, width, height,null);  
        }  
        //获取作为背景图片的宽度  
        public int getdefaultWidth(){  
            return width;  
        }  
        //获取作为背景图片的高度  
        public int getdefaultHeight(){  
            return height;  
        }  
    }

MainFrame.java

package com.qianku.project;
    
    import java.awt.BorderLayout;
    import java.awt.Color;
    import java.awt.Dimension;
    import java.awt.Toolkit;
    
    import javax.swing.JButton;
    import javax.swing.JFrame;
    import javax.swing.JPanel;
    
    public class MainFrame  extends JFrame{
    	
    	public   JFrame frame;
    	public int width = Toolkit.getDefaultToolkit().getScreenSize().width;
        public int height = Toolkit.getDefaultToolkit().getScreenSize().height;
    	public int windowsWedth = 1080;
        public int windowsHeight = 668;
    	public void initialize()
    	{
    		frame = this;
    		frame.setLayout(new BorderLayout(2,2));
    		
    		
    		JPanel topPanel = new JPanel();
    		topPanel.setBackground(Color.red);
    		JPanel bottomPanel = new JPanel();
    		bottomPanel.setBackground(Color.green);
    		bottomPanel.setLayout(new BorderLayout(2,2));
    		
    		JPanel leftPanel = new MainLeftPanel();
    		JPanel rightPanel = new MainRightPanel();
    		
    		bottomPanel.add("West", leftPanel);
    		bottomPanel.add("Center", rightPanel);
    		
    		frame.add("North", topPanel);  
    		frame.add("Center",bottomPanel);
    		topPanel.setPreferredSize(new Dimension(0, 80));
    		
    		
    		frame.setBounds((width - windowsWedth) / 2,
            		(height - windowsHeight) / 2, windowsWedth, windowsHeight);
    		 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	     frame.setVisible(true);
    	}
    	
    	public static void main(String[] args) {
    		
    		new MainFrame().initialize();
    	}
    
    }

MainLeftPanel.java

package com.qianku.project;
    
    import java.awt.Color;
    import java.awt.Dimension;
    
    import javax.swing.JPanel;
    
    public class MainLeftPanel extends JPanel{
    	
    	
    	public  MainLeftPanel()
    	{
    		this.setBackground(Color.yellow);
    		this.setPreferredSize(new Dimension(150, 0));
    		
    	}
    
    }

MainRightPanel.java:

package com.qianku.project;
    
    import java.awt.Color;
    
    import javax.swing.JPanel;
    
    public class MainRightPanel extends JPanel{
    
    	
    	public MainRightPanel()
    	{
    		this.setBackground(Color.pink);
    	}
    }

![20180520110759516][]

swing写桌面程序，很难受。附上源码下载链接 ： https://download.csdn.net/download/gaoxuaiguoyi/10425601

[20180520110759516]: /images/20220524/41e9e285f98f4552ba18f590d98e1212.png