gui登錄界面

import javax.swing.*;

import java.awt.*;
import java.awt.event.*;
public class SurFace extends JFrame implements ActionListener{
	JLabel jl1,jl2,jl3;
	JLabel label;
	JTextField jtf;
	JPasswordField jpf;
	JButton jb1,jb2,jb3;
	ImageIcon background;
	JPanel jp1,jp2,jp3,jp4;
	JPanel myPanel;		//要放置的背景
	
	public SurFace(){
		
		
		
		
		jl1=new JLabel("賬號：");
		jl2=new JLabel("密碼：");
//		jl3=new JLabel(new ImageIcon("images/背景.jpg"));
		jtf=new JTextField(16);
		jpf=new JPasswordField(16);
		jb1=new JButton("登錄");
		jb2=new JButton("取消");
		jb3=new JButton("清空");
		
		jp1=new JPanel();
		jp2=new JPanel();
		jp3=new JPanel();
//		jp4=new JPanel();
		
		background = new ImageIcon("images/背景.jpg");	//創建一個背景圖片
		label = new JLabel(background);		//把背景圖片添加到標籤裏
		label.setBounds(0, 0, background.getIconWidth(), background.getIconHeight());	//把標籤設置爲和圖片等高等寬
		myPanel = (JPanel)this.getContentPane();		//把我的面板設置爲內容面板
		myPanel.setOpaque(false);					//把我的面板設置爲不可視
		myPanel.setLayout(new FlowLayout());		//把我的面板設置爲流動佈局
		this.getLayeredPane().setLayout(null);		//把分層面板的佈局置空
		
		jp1.add(jl1);
		jp1.add(jtf);
		jp2.add(jl2);
		jp2.add(jpf);
		jp3.add(jb1);
		jp3.add(jb2);
		jp3.add(jb3);
		
//		jp4.add(jl3);
		this.add(jp1);
		this.add(jp2);
     	this.add(jp3);
		
		
		this.getLayeredPane().add(label, new Integer(Integer.MIN_VALUE));		//把標籤添加到分層面板的最底層
		
		//監聽
		jb1.addActionListener(this);
		jb2.addActionListener(this);
		jb3.addActionListener(this);
		
		this.setTitle(“xxxxxxxxxxx");
		this.setSize(400,300);
		this.setLocation(300,300);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setVisible(true);
	}
public static void main(String[] args) {
	new SurFace();
}
@Override
public void actionPerformed(ActionEvent e) {
	// TODO Auto-generated method stub
	/*jb1=new JButton("登錄");
		jb2=new JButton("取消");
		jb3=new JButton("清空");
		JTextField jtf;
	JPasswordField jpf;*/
	if(e.getSource()==jb1) {
		String name="17033114";
		String psw="111111";
		
		String j1=jtf.getText();
		String p1=jpf.getText();
		
		if(name.equals(j1)&&psw.equals(p1)) {
			JOptionPane.showMessageDialog(this, "登陸成功");
			
		}else {
			JOptionPane.showMessageDialog(this, "登陸失敗");
		}
		
	}else if(e.getSource()==jb2) {
		this.setVisible(false);
		
	}else if(e.getSource()==jb3) {
		jtf.setText(null);
		jpf.setText(null);
		
	}
	
}
}
class test extends JPanel{
	
}

登錄背景圖片：

界面：