logintest.java

这是一个理发店管理系统

package Barber;

import java.awt.Dimension;
import java.awt.Rectangle;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import Barber.Mainpage;
import java.awt.event.KeyEvent;
import javax.swing.ImageIcon;
import java.awt.Color;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.awt.Toolkit;


public class Logintest extends JFrame {

	private static final long serialVersionUID = 1L;
	private String s;
	private JPanel jContentPane = null;

	private JLabel jLabel = null;

	private JButton jButton = null;

	private JLabel jLabel1 = null;
	
	private Mainpage mainpage;

	private JPasswordField jPasswordField = null;

	private JButton jButton1 = null;
	private JLabel jLabel2 = null;

	/**
	 * This is the default constructor
	 */
	public Logintest() {
		super();
		initialize();
	}

	/**
	 * This method initializes this
	 * 
	 * @return void
	 */
	private void initialize() {
		try{
		BufferedReader in;
		Toolkit kit = Toolkit.getDefaultToolkit();
		Dimension screenSize = kit.getScreenSize();
		int screenHeight = screenSize.height;
		int screenWidth = screenSize.width;
		this.setBounds(new Rectangle((screenWidth - 636)/ 2,(screenHeight - 537)/ 2, 636, 537));
		in=new BufferedReader(new FileReader("password.ini"));
		s=in.readLine();
		
		}
		catch(IOException e)
		{
			JOptionPane.showMessageDialog(null,"密码读取错误！");
		}
		
		this.setIconImage(Toolkit.getDefaultToolkit().getImage(getClass().getResource("/Barber/top.jpg")));
		//this.setBounds(new Rectangle(0, 0, 636, 535));
		this.setContentPane(getJContentPane());
		this.setTitle("HIT理发店管理系统");
	}

	/**
	 * This method initializes jContentPane
	 * 
	 * @return javax.swing.JPanel
	 */
	private JPanel getJContentPane() {
		if (jContentPane == null) {
			jLabel2 = new JLabel();
			jLabel2.setBounds(new Rectangle(-1, -1, 133, 509));
			jLabel2.setIcon(new ImageIcon(getClass().getResource("/Barber/0007.jpg")));
			jLabel2.setText("");
			jLabel1 = new JLabel();
			jLabel1.setText("请输入密码");
			jLabel1.setDisplayedMnemonic(KeyEvent.VK_UNDEFINED);
			jLabel1.setForeground(new Color(153, 0, 51));
			jLabel1.setBounds(new Rectangle(265, 411, 71, 22));
			jLabel = new JLabel();
			jLabel.setText("");
			jLabel.setDisplayedMnemonic(KeyEvent.VK_UNDEFINED);
			jLabel.setIcon(new ImageIcon(getClass().getResource("/Barber/0001.jpg")));
			jLabel.setBackground(new Color(231, 255, 255));
			jLabel.setBounds(new Rectangle(130, -2, 499, 377));
			jContentPane = new JPanel();
			jContentPane.setLayout(null);
			jContentPane.setBackground(new Color(204, 204, 204));
			jContentPane.add(jLabel, null);
			jContentPane.add(getJButton(), null);
			jContentPane.add(jLabel1, null);
			jContentPane.add(getJPasswordField(), null);
			jContentPane.add(getJButton1(), null);
			jContentPane.add(jLabel2, null);
		}
		return jContentPane;
	}

	/**
	 * This method initializes jButton	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getJButton() {
		if (jButton == null) {
			jButton = new JButton();
			jButton.setBounds(new Rectangle(240, 457, 86, 29));
			jButton.setIcon(new ImageIcon(getClass().getResource("/Barber/loginb.jpg")));
			jButton.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					String text = jPasswordField.getText();
					String ss=text;
					if(s.equals(ss))
					{
						setVisible(false);
						if(mainpage==null)
						{
							mainpage=new  Mainpage();
							mainpage.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
							mainpage.setVisible(true);
						}
					}
					else
					{
						JOptionPane.showMessageDialog(null,"密码错误！");
						return;
					}
						
				}
			});
		}
		return jButton;
	}

	/**
	 * This method initializes jPasswordField	
	 * 	
	 * @return javax.swing.JPasswordField	
	 */
	private JPasswordField getJPasswordField() {
		if (jPasswordField == null) {
			jPasswordField = new JPasswordField();
			jPasswordField.setBounds(new Rectangle(371, 410, 88, 23));
			jPasswordField.setBackground(new Color(204, 204, 176));
		}
		return jPasswordField;
	}

	/**
	 * This method initializes jButton1	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getJButton1() {
		if (jButton1 == null) {
			jButton1 = new JButton();
			jButton1.setBounds(new Rectangle(411, 457, 86, 29));
			jButton1.setIcon(new ImageIcon(getClass().getResource("/Barber/loginb2.jpg")));
			jButton1.setText("");
			jButton1.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e) {
					System.exit(0);
					}
			});
		}
		return jButton1;
	}

}  //  @jve:decl-index=0:visual-constraint="356,79"