Java项目:银行管理系统设计和实现(java+swing)

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项目介绍：

本项目是使用Java swing开发，可实现ATM系统/银行系统的基本登陆、转账、查询余额、存取款业务。界面设计比较简介

项目结构：

运行截图：

 

数据库交互类：

public class ExecuteSQL {
	protected static String dbClassName = "com.mysql.jdbc.Driver";
	protected static String dbUrl = "jdbc:mysql://localhost:3306/atm?useUnicode=true&characterEncoding=UTF-8&useSSL=false";
	protected static String dbUser = "root";
	protected static String dbPwd = "root";
	private static Connection conn = null;
	
	private ExecuteSQL() {
		try {
			if (conn == null) {
				Class.forName(dbClassName).newInstance();
				conn = DriverManager.getConnection(dbUrl, dbUser, dbPwd);
			}
			else
				return;
		} catch (Exception ee) {
			ee.printStackTrace();
		}

	}
	
	//重写executeQuer方法
	//返回ResultSet结果集
	private static ResultSet executeQuery(String sql) {
		try {
			if(conn==null)
			new ExecuteSQL();
			return conn.createStatement().executeQuery(sql);//ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE
		} catch (SQLException e) {
			e.printStackTrace();
			return null;
		} finally {
		}
	}
	
	//重写executeUpdate方法
	private static int executeUpdate(String sql) {	
		try {
			if(conn==null)
				new ExecuteSQL();
			return conn.createStatement().executeUpdate(sql);
		} catch (SQLException e) {
			System.out.println(e.getMessage());			
			return -1;
		} finally {
		}
	}
	
	public static void close() {
		try {
			conn.close();
		} catch (SQLException e) {
			e.printStackTrace();
		}finally{
			conn = null;
		}
	}
	
	//登录测试账号 密码
	public static user check(String name,String password){
		int i = 0;
		user u = new user();
		String sql = "select name, password from bank where name = '"+name+"'";
		ResultSet rs = ExecuteSQL.executeQuery(sql);
		try {
			while(rs.next()){				
				u.setName(rs.getString("name"));
				u.setPassword(rs.getString("password"));	
			//	u.setbalance(rs.getFloat("balance"));
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		ExecuteSQL.close();
		return u;
	}
	
	//注册，添加用户信息
	public static int addUser(String name,String password){
		int i = 0;
		String sql = "insert into bank(name,password,balance)"
				+ "values('"+name+"','"+password+"','"+ 0 +"')";
		i = ExecuteSQL.executeUpdate(sql);
		ExecuteSQL.close();
		return i;
		
	}
	
	//查询用户信息
	public static user query(String name){
		user u = new user();
		String sql = "select name,balance from bank where name = '"+name+"'";
		ResultSet rs =  ExecuteSQL.executeQuery(sql);
		try {
			while(rs.next()){
				u.setName(rs.getString("name"));
				u.setbalance(rs.getDouble("balance"));
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		ExecuteSQL.close();
		return u;
	}
	
	// 修改账户的余额
	public static int  modifyMoney(String name, double balance) {
		user u = new user();
		String sql = "update  bank set balance = '" + balance + "' where name ='" + name + "'";
		int i  =  ExecuteSQL.executeUpdate(sql);
		ExecuteSQL.close();
		return i;
	}	
}

 

登录swing窗口：

public class LoginFrame extends JFrame {

	private JPanel contentPane;
	private JTextField u_name_Field;
	private JPasswordField u_password_field;
	private user user;

	//登录事件监听器
	class loginAction implements ActionListener {
		public void actionPerformed(ActionEvent e) {
			// TODO Auto-generated method stub
			user = ExecuteSQL.check(u_name_Field.getText(), u_password_field.getText());
			if (user.getName() != null) {
				if (user.getPassword().equals(u_password_field.getText())) {
					try {
						atmFrame frame = new atmFrame(user.getName());
						frame.setTitle(user.getName());
						frame.setVisible(true);
						setVisible(false);
					} catch (Exception ex) {
						ex.printStackTrace();
					}
				} else {
					JOptionPane.showMessageDialog(null, "密码不正确！请重新输入");
					u_name_Field.setText("");
					u_password_field.setText("");
				}

			} else {
				JOptionPane.showMessageDialog(null, "找不到该用户，请先注册！");
				u_name_Field.setText("");
				u_password_field.setText("");
			}
		}
	}
	
	//注册事件监听器
	class signAction implements ActionListener{

		public void actionPerformed(ActionEvent e) {
			// TODO Auto-generated method stub
			SignFrame frame = new SignFrame();
			frame.setVisible(true);
			setVisible(false);
		}
		
	}

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					LoginFrame frame = new LoginFrame();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public LoginFrame() {
		setTitle("\u7F51\u4E0A\u94F6\u884C");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 506, 385);
		contentPane = new JPanel();
		setLocationRelativeTo(null);
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);
		
		JButton LoginButton = new JButton("\u767B\u5F55");
		LoginButton.setFont(new Font("新宋体", Font.BOLD, 20));
		LoginButton.setBounds(92, 214, 120, 37);
		contentPane.add(LoginButton);
		LoginButton.addActionListener(new loginAction());
		
		JButton signButton = new JButton("\u6CE8\u518C");
		signButton.setFont(new Font("新宋体", Font.BOLD, 20));
		signButton.setBounds(283, 214, 113, 37);
		contentPane.add(signButton);
		signButton.addActionListener(new signAction());
		
		JLabel u_nameLabel = new JLabel("\u7528\u6237\u540D\uFF1A");
		u_nameLabel.setFont(new Font("新宋体", Font.BOLD, 18));
		u_nameLabel.setBounds(92, 49, 88, 37);
		contentPane.add(u_nameLabel);
		
		JLabel u_passwordLabel_1 = new JLabel("\u5BC6\u7801\uFF1A");
		u_passwordLabel_1.setFont(new Font("新宋体", Font.BOLD, 18));
		u_passwordLabel_1.setBounds(92, 130, 88, 27);
		contentPane.add(u_passwordLabel_1);
		
		u_name_Field = new JTextField();
		u_name_Field.setBounds(184, 57, 157, 29);
		contentPane.add(u_name_Field);
		u_name_Field.setColumns(10);
		
		u_password_field = new JPasswordField();
		u_password_field.setBounds(184, 133, 157, 27);
		contentPane.add(u_password_field);
		
		JLabel lblNewLabel = new JLabel("\u7528\u6237\u6307\u5357");
		lblNewLabel.setForeground(Color.RED);
		lblNewLabel.setBounds(402, 307, 72, 31);
		contentPane.add(lblNewLabel);
	}
}

 

窗口大小设置：

public class atmFrame extends JFrame {

	private JPanel contentPane;
	private user user;
//	private LoginFrame lf;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					atmFrame frame = new atmFrame(null);
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}


	/**
	 * Create the frame.
	 */
	public atmFrame(final String name) {
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 518, 434);
		contentPane = new JPanel();
		setTitle(name);
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setLocationRelativeTo(null);
		setContentPane(contentPane);
		contentPane.setLayout(null);
		
		JButton queryButton = new JButton("\u67E5\u8BE2");
		queryButton.setBounds(99, 101, 113, 27);
		contentPane.add(queryButton);
		queryButton.addActionListener(new ActionListener(){
		public void actionPerformed(ActionEvent e) {
			user = ExecuteSQL.query(name);
			DecimalFormat df = new DecimalFormat( "0.00 "); 
			JOptionPane.showMessageDialog(null,
		              "您的账户名:"+user.getName()+"\n"+"当前余额:￥"+user.getbalance()+"\n","信息提示",
		              JOptionPane.INFORMATION_MESSAGE);		
		}
		});
		
		JButton depositButton = new JButton("\u5B58\u6B3E");
		depositButton.setBounds(99, 223, 113, 27);
		contentPane.add(depositButton);
		depositButton.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				depositFrame df = new depositFrame(name);
				setVisible(false);
				df.setVisible(true);
			}
			
		});
		
		JButton withdrawButton = new JButton("\u53D6\u6B3E");
		withdrawButton.setBounds(288, 101, 113, 27);
		contentPane.add(withdrawButton);
		withdrawButton.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				withdrawFrame wf = new withdrawFrame(name);
				setVisible(false);
				wf.setVisible(true);
			}
			
		});
		
		JButton transferButton = new JButton("\u8F6C\u8D26");
		transferButton.setBounds(288, 223, 113, 27);
		contentPane.add(transferButton);
		transferButton.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				transferFrame wf = new transferFrame(name);
				setVisible(false);
				wf.setVisible(true);
			}
			
		});
	}

}

源码获取：博客首页 "资源" 里下载！