loginpanel.java

jsp2.0动态网站开发实例指南原代码

/*
 * Created on 2005-4-13
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package ui;

import java.awt.Dimension;

import javax.swing.JPanel;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JPasswordField;
import javax.swing.JButton;
import javax.swing.SwingUtilities;

import AccountsPack.User;
import AccountsPack.UserFactory;
/**
 * @author Administrator
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class LoginPanel extends JPanel {

	private JLabel jLabel = null;
	private JTextField tfUserName = null;
	private JLabel jLabel1 = null;
	private JPasswordField pfPassword = null;
	private JButton bnLogin = null;
	private JButton bnCancel = null;
	/**
	 * This method initializes jTextField	
	 * 	
	 * @return javax.swing.JTextField	
	 */    
	private JTextField getTfUserName() {
		if (tfUserName == null) {
			tfUserName = new JTextField();
			tfUserName.setBounds(118, 25, 145, 22);
		}
		return tfUserName;
	}
	/**
	 * This method initializes jPasswordField	
	 * 	
	 * @return javax.swing.JPasswordField	
	 */    
	private JPasswordField getPfPassword() {
		if (pfPassword == null) {
			pfPassword = new JPasswordField();
			pfPassword.setBounds(118, 74, 145, 22);
		}
		return pfPassword;
	}
	/**
	 * This method initializes jButton	
	 * 	
	 * @return javax.swing.JButton	
	 */    
	private JButton getBnLogin() {
		if (bnLogin == null) {
			bnLogin = new JButton();
			bnLogin.setBounds(104, 125, 74, 22);
			bnLogin.setText("Login");
			bnLogin.addActionListener(new java.awt.event.ActionListener() { 
				public void actionPerformed(java.awt.event.ActionEvent e) {    
					OnLogin();
				}
			});
		}
		return bnLogin;
	}
	
	public void OnLoginSuccess(String userName) {
		UserFactory factory = new UserFactory();
	    User loginUser = factory.GetUser(-1);
	    loginUser.set_userName(userName);
	    loginUser.GetInfo();
        new MainFrame();
	    MainFrame.getMainFrame().setCurrentUser(loginUser);
        MainFrame.getMainFrame().init();
	    MainFrame.getMainFrame().setVisible(true);
	    JFrame parent = (JFrame) SwingUtilities.getAncestorOfClass(JFrame.class, this);
	    if (parent != null) {
	        parent.dispose();
	    }
	}
	
	public void OnCancel(){
	    JFrame parent = (JFrame) SwingUtilities.getAncestorOfClass(JFrame.class, this);
	    if (parent != null) {
	        parent.dispose();
	    }
	}
	
	public void OnLogin(){
	    String userName = getTfUserName().getText();
	    if (userName.equals("")) {
	        JOptionPane.showMessageDialog(this, "Please enter user name!", "Error", JOptionPane.ERROR_MESSAGE);
	        return;
	    }
	    String pwd = new String(getPfPassword().getPassword());
	    
	    UserFactory factory = new UserFactory();
	    User loginUser = factory.GetUser(-1);
	    loginUser.set_userName(userName);
	    loginUser.set_password(pwd);
	    if (loginUser.Login()) {
	        OnLoginSuccess(userName);
	    }else {
	        JOptionPane.showMessageDialog(this, "Login failed.Check your user name and password!", "Error", JOptionPane.ERROR_MESSAGE);
	    }
	}
	/**
	 * This method initializes jButton1	
	 * 	
	 * @return javax.swing.JButton	
	 */    
	private JButton getBnCancel() {
		if (bnCancel == null) {
			bnCancel = new JButton();
			bnCancel.setBounds(192, 125, 74, 22);
			bnCancel.setText("Cancel");
			bnCancel.addActionListener(new java.awt.event.ActionListener() { 
				public void actionPerformed(java.awt.event.ActionEvent e) {
				    OnCancel();
					System.out.println("actionPerformed()"); // TODO Auto-generated Event stub actionPerformed()
				}
			});
		}
		return bnCancel;
	}
    
	public static void main(String[] args) {
	    JFrame mainFrame = new JFrame();
	    mainFrame.setTitle("Hotel online ordering system - Login");
	    mainFrame.setContentPane(new LoginPanel());
	    mainFrame.setSize(new Dimension(300, 200));
	    mainFrame.setResizable(false);
	    mainFrame.setLocation(300, 200);
        mainFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
	    mainFrame.setVisible(true);
    }
	/**
	 * This is the default constructor
	 */
	public LoginPanel() {
		super();
		initialize();
	}
	/**
	 * This method initializes this
	 * 
	 * @return void
	 */
	private  void initialize() {
		jLabel1 = new JLabel();
		jLabel = new JLabel();
		this.setLayout(null);
		this.setSize(300, 186);
		jLabel.setText("User name:");
		jLabel.setBounds(22, 25, 76, 22);
		jLabel1.setBounds(22, 74, 76, 22);
		jLabel1.setText("Password:");
		this.add(jLabel, null);
		this.add(getTfUserName(), null);
		this.add(jLabel1, null);
		this.add(getPfPassword(), null);
		this.add(getBnLogin(), null);
		this.add(getBnCancel(), null);
	}
}  //  @jve:decl-index=0:visual-constraint="81,32"