頁面代碼之一：

package org.vector.view;


import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;

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

import org.vector.bean.Bank;
import org.vector.serviceImpl.BankServiceImpl;





@SuppressWarnings("serial")
public class BankView extends JFrame{

	private JButton register,login,codeChange;
	private JLabel idLabel,codeLabel,bank,imLabel;
	public static JTextField idTest;
	private JPasswordField codeTest;
	public static String message;
	public BankView() {
		building();
		addListeners();
		
	}
	public void building() {
		setLayout(null);
		ImageIcon image = new ImageIcon("bank.png");
		imLabel = new JLabel(image);
		imLabel.setBounds(180, 90, 250, 200);
		bank = new JLabel("bank");
		idLabel = new JLabel("賬號");
		codeLabel = new JLabel("密碼");
		register = new JButton("注冊");
		login = new JButton("登錄");
		image = new ImageIcon("bank.png");
		idTest = new JTextField(20);
		codeTest = new JPasswordField(20);
		codeChange = new JButton("修改/忘記密碼");
		bank.setBounds(250, 20, 120, 50);
		Font font = new Font("圓體", Font.BOLD, 50);
		Font font1 = new Font("圓體", Font.BOLD, 30);
		bank.setFont(font);
		register.setBounds(0, 500, 120, 25);
		login.setBounds(225, 450, 120, 25);
		codeChange.setBounds(450, 500, 120, 25);
		idLabel.setBounds(150, 300, 120, 25);
		idLabel.setFont(font1);
		codeLabel.setBounds(150, 375, 120, 25);
		codeLabel.setFont(font1);
		idTest.setBounds(250, 300, 200, 30);
		codeTest.setBounds(250, 375, 200, 30);
		
		
		add(bank);
		add(imLabel);
		add(idLabel);
		add(idTest);
		add(codeLabel);
		add(codeTest);
		add(login);
		add(register);
		add(codeChange);
		
    	setBounds(600,600,600,600);
    	setLocation((2000-getWidth())/2,(1000-getHeight())/2);
    	setResizable(false);
    	setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    	setVisible(true);
	}

	private void addListeners() {
		register.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				BankView.this.dispose();
				new BankRegister().setVisible(true);
			}
			
		});
		
		login.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				
				int flag = 0;
				String id = idTest.getText();
				String code = codeTest.getText();
				if(!id.equals("")&&!code.equals("")) {
				BankServiceImpl bankServiceImpl = new BankServiceImpl();
				BankView_0.list.clear();
				BankView_0.list.addAll(bankServiceImpl.find());
				for (int i = 0; i < BankView_0.list.size(); i++) {
					if(id.equals(BankView_0.list.get(i).getIdAccount()) && code.equals(BankView_0.list.get(i).getCode())) {
						BankView_0.list1.clear();
						BankView_0.list1.add(id);
						flag = 1;
						JOptionPane.showMessageDialog(register, "登陸成功", "標題",JOptionPane.WARNING_MESSAGE); 
						BankView.this.dispose();
						new BankView_0().setVisible(true);	
						break;
					}
				}
				if(flag == 0){
					JOptionPane.showMessageDialog(register, "賬號或密碼錯誤", "標題",JOptionPane.WARNING_MESSAGE); 
				}
			}
				else {
					JOptionPane.showMessageDialog(register, "賬號或密碼不能為空", "標題",JOptionPane.WARNING_MESSAGE); 

				}
			}
		});
		codeChange.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				JOptionPane.showMessageDialog(codeChange, "此功能暫未開放", "標題",JOptionPane.WARNING_MESSAGE); 

			}
		});


	}
}