bank.java

该系统能够根据银行用户的要求

/*
 * 本类主要实现银行的注册账户、登录账户、修改密码、存取钱等最基本工作，不过这里没详述它的细节。
 */
package guiPackage;

import static userPackage.ManageUser.findUser;

import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

import userPackage.User;

//Land类用于模拟ATM的界面
public class Bank implements ActionListener{
	private JFrame frame;
	private Container contentPane;
	private String name;
	private String password;

	//登录界面
	private JLabel userLbl, pwdLbl, message0;
	private JTextField userText;
	private JPasswordField pwdText;
	private JButton okBtn, exitBtn;

	//执行界面
	private JLabel message1;
	private JButton balanceBtn, chpwdBtn, withdrawBtn, savingBtn;
	private JButton returnBtn1;

	//修改密码
	private JLabel message2;
	private JLabel oldpwdLbl, newpwdLbl, rnewpwdLbl;
	private JPasswordField oldpwdTxt, newpwdTxt, rnewpwdTxt;
	private JButton okBtn2, returnBtn2;
	
	//存储现金
	private JLabel message3;
	private JLabel saveLbl;
	private JTextField saveField;
	private JButton okBtn3,returnBtn3;
	
	//提取现金
	private JLabel message4;
	private JButton[] moneyBtn = new JButton[5];
	private JButton returnBtn4; 
	
	//private User user=new User();
	
	public Bank(){
		frame = new JFrame("*********银行系统*********");
		frame.setBounds(300, 100, 400, 300);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setResizable(false);
		contentPane = frame.getContentPane();
		initGUI();
	}
	//本函数定义一个卡类型的布局，准备以后本界面切卡形式实现界面
	public void initGUI(){
		contentPane.setLayout(new CardLayout());
		contentPane.add(getPanel(0), "");
	}
	public void loadLand(int id){
		contentPane.add(getPanel(id), "");
		//取得的界面切卡形式切换界面
		CardLayout c = (CardLayout)contentPane.getLayout();
		c.next(contentPane);
	}
	public JPanel getPanel(int id){
		JPanel panel = null;
		switch(id){
		case 0:{
			//登录界面的实现
			message0 = new JLabel("中国牧业银行欢迎您!");
			userLbl = new JLabel("   账户名: ");
			pwdLbl = new JLabel("账户密码: ");
			userText = new JTextField(10);
			pwdText = new JPasswordField(10);
			okBtn = new JButton("确定");
			exitBtn = new JButton("退出");
			okBtn.setSize(4, 2);
			exitBtn.setSize(4, 2);
			JPanel panel0 = new JPanel(new FlowLayout());
			JPanel panel01 = new JPanel(new FlowLayout());
			JPanel panel02 = new JPanel(new FlowLayout());
			panel01.add(userLbl);
			panel01.add(userText);
			panel02.add(pwdLbl);
			panel02.add(pwdText);
			panel0.add(panel01);
			panel0.add(panel02);
			panel = new JPanel(new BorderLayout());
			panel.add(message0, BorderLayout.NORTH);
			panel.add(panel0, BorderLayout.CENTER);
			JPanel panel03 = new JPanel(new BorderLayout());
			JPanel panel04 = new JPanel(new BorderLayout());
			JPanel panel030 = new JPanel(new FlowLayout());
			JPanel panel040 = new JPanel(new FlowLayout());
			panel030.add(okBtn);
			panel03.add(panel030, BorderLayout.SOUTH);
			panel040.add(exitBtn);
			panel04.add(panel040, BorderLayout.SOUTH);
			panel.add(panel03, BorderLayout.WEST);
			panel.add(panel04, BorderLayout.EAST);
			//然后对两个按钮添加监听，准备做事件
			okBtn.addActionListener(this);
			exitBtn.addActionListener(this);
		}break;
		case 1:{
			//执行界面的实现
			message1 = new JLabel("******中国牧业银行欢迎您******");
			balanceBtn = new JButton("查询");
			chpwdBtn = new JButton("修改密码");
			withdrawBtn = new JButton("取款");
			savingBtn = new JButton("存款");
			returnBtn1 = new JButton("返回");
			JPanel panel1 = new JPanel(new GridLayout(3, 1, 200, 20));
			JPanel panel2 = new JPanel(new GridLayout(3, 1, 200, 20));
			panel1.add(balanceBtn);
			panel1.add(chpwdBtn);
			panel1.add(new JLabel(" "));
			panel2.add(withdrawBtn);
			panel2.add(savingBtn);
			panel2.add(returnBtn1);
			panel = new JPanel(new BorderLayout());
			panel.add(message1, BorderLayout.NORTH);
			panel.add(panel1, BorderLayout.WEST);
			panel.add(panel2, BorderLayout.EAST);
			//然后对五个按钮添加监听，准备做事件
			balanceBtn.addActionListener(this);
			chpwdBtn.addActionListener(this);
			withdrawBtn.addActionListener(this);
	    	savingBtn.addActionListener(this);
			returnBtn1.addActionListener(this);
		}break;
		case 2:{
			//修改密码界面的实现
			message2 = new JLabel(" ");
			oldpwdLbl = new JLabel("     旧密码: ");
			newpwdLbl = new JLabel("     新密码: ");
			rnewpwdLbl = new JLabel(" 重复新密码: ");
			oldpwdTxt = new JPasswordField(10);
			newpwdTxt = new JPasswordField(10);
			rnewpwdTxt = new JPasswordField(10);
			okBtn2 = new JButton("  确定  ");
			returnBtn2 = new JButton("返回");
			JPanel panel2 = new JPanel(new FlowLayout());
			JPanel panel20 = new JPanel(new FlowLayout());
			JPanel panel21 = new JPanel(new FlowLayout());
			JPanel panel22 = new JPanel(new FlowLayout());
			panel20.add(oldpwdLbl);
			panel20.add(oldpwdTxt);
			panel21.add(newpwdLbl);
			panel21.add(newpwdTxt);
			panel22.add(rnewpwdLbl);
			panel22.add(rnewpwdTxt);
			panel2.add(panel20);
			panel2.add(panel21);
			panel2.add(panel22);
			panel = new JPanel(new BorderLayout());
			panel.add(message2, BorderLayout.NORTH);
			panel.add(panel2, BorderLayout.CENTER);
			JPanel panel3 = new JPanel(new BorderLayout());
			JPanel panel30 = new JPanel(new FlowLayout());
			panel30.add(okBtn2);
			panel3.add(panel30, BorderLayout.SOUTH);
			JPanel panel4 = new JPanel(new BorderLayout());
			JPanel panel40 = new JPanel(new FlowLayout());
			panel40.add(returnBtn2);
			panel4.add(panel40, BorderLayout.SOUTH);
			panel.add(panel3, BorderLayout.WEST);
			panel.add(panel4, BorderLayout.EAST);
			//然后对两个按钮添加监听，准备做事件
			okBtn2.addActionListener(this);
			returnBtn2.addActionListener(this);
		}break;
		case 4:{
			//存储现金界面的实现
			message3=new JLabel("系统等待存现金....");
			saveLbl=new JLabel("存储金额:");
			saveField=new JTextField(10);
			panel = new JPanel(new BorderLayout());
			panel.add(message3,BorderLayout.NORTH);
			JPanel panel40=new JPanel(new FlowLayout());
			panel40.add(saveLbl);
			panel40.add(saveField);
			panel.add(panel40,BorderLayout.CENTER);
			saveField.grabFocus();
			okBtn3=new JButton("确定");
			returnBtn3=new JButton("返回");
			JPanel panel41=new JPanel(new FlowLayout());
			JPanel panel42=new JPanel(new FlowLayout());
			JPanel panel14=new JPanel(new BorderLayout());
			JPanel panel24=new JPanel(new BorderLayout());
			panel41.add(okBtn3);
			panel42.add(returnBtn3);
			panel14.add(panel41,BorderLayout.SOUTH);
			panel24.add(panel42,BorderLayout.SOUTH);
			panel.add(panel14,BorderLayout.WEST);
			panel.add(panel24,BorderLayout.EAST);
			//然后对两个按钮添加监听，准备做事件
			okBtn3.addActionListener(this);
			returnBtn3.addActionListener(this);
			
		}break;
		case 3:{
			//提取现金界面的实现
			message4 = new JLabel("您取出的钱不能少于 100元!");
			for(int i=0; i<5; i++){
				moneyBtn[i] = new JButton((i+1) + "00");
				moneyBtn[i].addActionListener(this);
			}
			returnBtn4 = new JButton("返回");
			returnBtn4.addActionListener(this);
			JPanel panel31 = new JPanel(new GridLayout(3, 1, 200, 20));
			JPanel panel32 = new JPanel(new GridLayout(3, 1, 200, 20));
			panel31.add(moneyBtn[0]);
			panel31.add(moneyBtn[1]);
			panel31.add(moneyBtn[2]);
			panel32.add(moneyBtn[3]);
			panel32.add(moneyBtn[4]);
			panel32.add(returnBtn4);
			panel = new JPanel(new BorderLayout());
			panel.add(message4, BorderLayout.NORTH);
			panel.add(panel31, BorderLayout.WEST);
			panel.add(panel32, BorderLayout.EAST);
		}
		}
		return panel;
	}
	
	
	public void actionPerformed(ActionEvent e){
		//登录界面的监听事件
		if(e.getSource() == okBtn){
			//getText() 返回此 TextComponent(文本框)中包含的文本
			//toLowerCase()使用默认语言环境的规则将此 String 中的所有字符都转换为小写。
			//trim()返回字符串的副本，忽略前导空白和尾部空白
			//如果查找账户函数里用户不为空就调用loadLand()
			name = userText.getText().toLowerCase().trim();
			password = pwdText.getText().toLowerCase().trim();
			if(findUser(name,password) != null){
				loadLand(1);
				for(int i=1;i<=3;i++){
					BankATM b=new BankATM(i,name,password);
					b.go();
				}
			}
			else{
				//登录名和密码任一个不对就输出下条语句,然后对用户名和密码输入文本框清零
				//userTest.grabFocus()是用户名输入文本框处取得交互点
				message0.setText("您输入的账户名或密码不正确!");
				userText.setText("");	
				pwdText.setText("");
				userText.grabFocus();
			}
			return;
		}
		//退出登录界面时执行本操作
		if(e.getSource() == exitBtn){
			frame.hide();
			return;
		}
		//执行界面的监听事件
		if(e.getSource() == balanceBtn){//查询余额
			//取得本用户的账户，然后账户里查询得到余额
			double d = (findUser(name, password).getAccount().getBalance());
			message1.setText("您的余额为：" + d);
			return;
		}
		if(e.getSource() == chpwdBtn){//修改密码
			loadLand(2);
			oldpwdTxt.grabFocus();
			return;
		}	
		if(e.getSource() == withdrawBtn){//提取现金
			loadLand(3);
			return;
		}
		if(e.getSource() == savingBtn){
			loadLand(4);
			saveField.grabFocus();
			return;
		}
		//取得返回按钮 返回到登录界面
		if(e.getSource() == returnBtn1){//返回
			loadLand(0);
			
			return;
		}
		//修改密码界面的监听事件
		if(e.getSource() == okBtn2){
			String pwd1 = oldpwdTxt.getText().toLowerCase().trim();
			String pwd2 = newpwdTxt.getText().toLowerCase().trim();
			String pwd3 = rnewpwdTxt.getText().toLowerCase().trim();
			//如果输入原密码不对输出提示语句
			if(!pwd1.equals(password)){
				message2.setText("您输入的旧密码不正确!");
				oldpwdTxt.setText("");
				newpwdTxt.setText("");
				rnewpwdTxt.setText("");
				oldpwdTxt.grabFocus();
			}
			//如果两次输入的新密码不一致输出提示语句
			else if(!pwd2.equals(pwd3)){
				message2.setText("您输入的新密码不一致!");
				oldpwdTxt.setText("");
             newpwdTxt.setText("");
				rnewpwdTxt.setText("");
             oldpwdTxt.grabFocus();
			}
			else if(pwd3.length()!= 6){
				message2.setText("您输入的新密码必须六位字符!");
				oldpwdTxt.setText("");
             newpwdTxt.setText("");
				rnewpwdTxt.setText("");
             oldpwdTxt.grabFocus();
			}
			else {
				User u = findUser(name, password);
				u.setPwd(pwd2);
				
				message2.setText("修改成功!");
			}
			return;
		}
		//如果得到返回按钮就返回到执行界面
		if(e.getSource() == returnBtn2){
			loadLand(1);
			return;
		}
		//存储现金界面的监听事件
		if(e.getSource()==okBtn3){
			//取得本用户的账户，然后账户里查询得到添加函数进行添加金额
			String s=saveField.getText().trim();
			if(s.length()!=0){
			double amount=Double.parseDouble(s);
		   if(amount%10==0){
			if(findUser(name, password).getAccount().deposit(amount)){
				double d = (findUser(name, password).getAccount().getBalance());
				message3.setText("您已成功存储"+amount+"元;总余额为:"+d+"元");
			}
			else
				message3.setText("存储失败!");
			}
			else
				message3.setText("请存储被十整除的现金!");
				saveField.setText("");
				saveField.grabFocus();
			}
			else
				message3.setText("请存储金额不为空!");
             saveField.grabFocus();
				
		}
		if(e.getSource()==returnBtn3){
			loadLand(1);
			return;
		}
		//提取现金
		if(e.getSource() == moneyBtn[0]){
			double amount = 100.0;
			if((findUser(name, password)).getAccount().withdraw(amount)){
				double d = (findUser(name, password).getAccount().getBalance());
				message4.setText("您成功地取出 100.0元,现在的余额为:"+d+"元");
			}
			else 
				message4.setText("对不起!你的余额不足,取出失败!");
			return;
		}
		if(e.getSource() == moneyBtn[1]){
			double amount = 200.0;
			if((findUser(name, password)).getAccount().withdraw(amount)){
				double d = (findUser(name, password).getAccount().getBalance());
				message4.setText("您成功地取出 200.0元,现在的余额为:"+d+"元");
			}
			else 
				message4.setText("对不起!你的余额不足,取出失败!");
			return;
		}
		if(e.getSource() == moneyBtn[2]){
			double amount = 300.0;
			if((findUser(name, password)).getAccount().withdraw(amount)){
				double d = (findUser(name, password).getAccount().getBalance());
				message4.setText("您成功地取出 300.0元,现在的余额为:"+d+"元");
			}
			else 
				message4.setText("对不起!你的余额不足,取出失败!");
			return;
		}
		if(e.getSource() == moneyBtn[3]){
			double amount = 400.0;
			if((findUser(name, password)).getAccount().withdraw(amount)){
				double d = (findUser(name, password).getAccount().getBalance());
				message4.setText("您成功地取出 400.0元,现在的余额为:"+d+"元");
			}
			else 
				message4.setText("对不起!你的余额不足,取出失败!");
			return;
		}
		if(e.getSource() == moneyBtn[4]){
			double amount = 500.0;
			if((findUser(name, password)).getAccount().withdraw(amount)){
				double d = (findUser(name, password).getAccount().getBalance());
				message4.setText("您成功地取出 500.0元,现在的余额为:"+d+"元");
			}
			else 
				message4.setText("对不起!你的余额不足,取出失败!");
			return;
		}
		//如果是返回按钮就返回到执行界面
		if(e.getSource() == returnBtn4){
			loadLand(1);
			return;
		}
	}
	public void go(){
		frame.setVisible(true);
	} 
	/*public static void main(String[] args){
		(new Land()).go();
	}*/
}