记录java桌面程序swing布局的痛心

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。

Login.java

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);
	}
}

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