源码获取：博客首页 "资源" 里下载！
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：
|
1 |
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：
|
1 |
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：
|
1 |
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！
微信扫一扫打赏
支付宝扫一扫打赏
