diff --git a/lib/mysql-connector-j-8.4.0.jar b/lib/mysql-connector-j-8.4.0.jar new file mode 100644 index 0000000..8294fe0 Binary files /dev/null and b/lib/mysql-connector-j-8.4.0.jar differ diff --git a/src/main/java/com/example/Home.java b/src/main/java/com/example/Home.java new file mode 100644 index 0000000..f5fdc4f --- /dev/null +++ b/src/main/java/com/example/Home.java @@ -0,0 +1,48 @@ +package com.example; + +import javax.swing.*; +import java.awt.event.ActionEvent; +import java.awt.event.ActionListener; + +public class Home extends JFrame implements ActionListener { + + JMenuBar menuBar; + JMenu menu; + // 库存菜单 进货菜单 销售菜单 + JMenuItem StockMenuItem,InventoryMenuItem,SalesMenuItem; + + Home() { + super("城市进销存信息管理系统"); + menuBar = new JMenuBar(); + menu = new JMenu("菜单"); + StockMenuItem = new JMenuItem("库存信息管理"); + InventoryMenuItem = new JMenuItem("进货信息管理"); + SalesMenuItem = new JMenuItem("销售信息管理"); + menu.add(StockMenuItem); + menu.add(InventoryMenuItem); + menu.add(SalesMenuItem); + menuBar.add(menu); + setJMenuBar(menuBar); + StockMenuItem.addActionListener(this); + InventoryMenuItem.addActionListener(this); + SalesMenuItem.addActionListener(this); + setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + setBounds(100,100,500,500); + setVisible(true); + } + @Override + public void actionPerformed(ActionEvent e) { + if(e.getSource()==StockMenuItem){ + new StockProductManagement(); + this.setVisible(false); + } + if(e.getSource()==InventoryMenuItem){ + new InventoryProductManagement(); + this.setVisible(false); + } + if(e.getSource()==SalesMenuItem){ + new SalesProductManagement(); + this.setVisible(false); + } + } +} diff --git a/src/main/java/com/example/Jdbc.java b/src/main/java/com/example/Jdbc.java new file mode 100644 index 0000000..f2de449 --- /dev/null +++ b/src/main/java/com/example/Jdbc.java @@ -0,0 +1,41 @@ +package com.example; + +import java.sql.*; + +public class Jdbc { + private Connection conn; + private Statement stmt; + private ResultSet rs; + + Jdbc(){ + try { + Class.forName("com.mysql.cj.jdbc.Driver"); + String password = "root"; + String username = "root"; + conn= DriverManager.getConnection("jdbc:mysql://localhost:3306/su?useSSL=false&serverTimezone=UTC", username, password); + stmt=conn.createStatement(); + } catch (ClassNotFoundException | SQLException e) { + e.printStackTrace(); + } + } + + public ResultSet query(String sql) throws SQLException { + rs=stmt.executeQuery(sql); + return rs; + } + + public void update(String sql) throws SQLException { + stmt.executeUpdate(sql); + } + public void close() throws SQLException { + if(rs!=null){ + rs.close(); + } + if(stmt!=null){ + stmt.close(); + } + if(conn!=null){ + conn.close(); + } + } +} diff --git a/src/main/java/com/example/Main.java b/src/main/java/com/example/Main.java index 3ec0d33..a3b0c11 100644 --- a/src/main/java/com/example/Main.java +++ b/src/main/java/com/example/Main.java @@ -4,40 +4,66 @@ import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.util.Random; public class Main extends JFrame implements ActionListener { - JButton jb1,jb2,jb3; - + JButton jb1,jb2; + JTextField tf1,tf3; + JPasswordField tf2; + JLabel jl1,jl2,jl3,jl4,jl5; + Random rand = new Random(); Main(){ - super("超市进销存信息管理系统"); - jb1=new JButton("进货商品信息"); - jb2=new JButton("销售商品信息"); - jb3=new JButton("库存商品信息"); + super("登录"); + jb1=new JButton("登录"); + jb2=new JButton("取消"); + tf1=new JTextField(6); + tf2=new JPasswordField(6); + tf3=new JTextField(6); + jl1=new JLabel("用户名",JLabel.CENTER); + jl2=new JLabel("密码",JLabel.CENTER); + jl3=new JLabel("验证码",JLabel.CENTER); + jl4=new JLabel("验证码：",JLabel.CENTER); + jl5=new JLabel("",JLabel.CENTER); jb1.addActionListener(this); jb2.addActionListener(this); - jb3.addActionListener(this); - setLayout(new GridLayout(3,3)); + setLayout(new GridLayout(5,2)); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); - add(jb1); - add(jb2); - add(jb3); - setBounds(100,100,500,500); - setLocationRelativeTo(null); + add(jl1);add(tf1); + add(jl2);add(tf2); + add(jl3);add(tf3); + add(jl4);add(jl5); + add(jb1);add(jb2); + jl5.setText(Integer.toString(rand.nextInt(100)+100)); + setBounds(500,100,500,500); setVisible(true); } @Override public void actionPerformed(ActionEvent e) { + if(e.getSource()==jb1){ - new InventoryProductManagement();//进入进货商品信息管理系统 - setVisible(false); + Jdbc jdbc = new Jdbc(); + String sql = "select * from user where username='"+tf1.getText()+"' and password='"+tf2.getText()+"'"; ; + try { + ResultSet rs = jdbc.query(sql); + jdbc.close(); + if(rs.next()&&tf3.getText().equals(jl5.getText())) { + JOptionPane.showMessageDialog(null, "登录成功"); + new Home(); + this.setVisible(false); + } + else{ + JOptionPane.showMessageDialog(null,"登录失败"); + jl5.setText(Integer.toString(rand.nextInt(100)+100)); + } + } catch (SQLException ex) { + throw new RuntimeException(ex); + } }else if(e.getSource()==jb2){ - new SalesProductManagement();//进入销售商品信息管理系统 - setVisible(false); - }else if(e.getSource()==jb3){ - new StockProductManagement();//进入库存商品信息管理系统 - setVisible(false); + System.exit(0); } } diff --git a/src/main/java/com/example/StockProductManagement.java b/src/main/java/com/example/StockProductManagement.java index 1cf5ed7..ad244d2 100644 --- a/src/main/java/com/example/StockProductManagement.java +++ b/src/main/java/com/example/StockProductManagement.java @@ -1,18 +1,176 @@ package com.example; import javax.swing.*; +import javax.swing.table.DefaultTableModel; +import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; +import java.sql.ResultSet; +import java.sql.SQLException; public class StockProductManagement extends JFrame implements ActionListener { + JMenuBar menuBar; + JMenu menu; + JMenuItem menuItem1,menuItem2,menuItem3; + private JTable table; + private final DefaultTableModel tableModel; StockProductManagement() { super("库存商品信息管理"); + menuBar = new JMenuBar(); + setJMenuBar(menuBar); + menu = new JMenu("菜单"); + menuBar.add(menu); + menuItem1 = new JMenuItem("添加商品"); + menuItem2 = new JMenuItem("删除商品"); + menu.add(menuItem1); + menu.add(menuItem2); +// menu.add(menuItem3); + menuItem1.addActionListener(this); + menuItem2.addActionListener(this); +// menuItem3.addActionListener(this); setBounds(100,100,500,500); + setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + // 表头 + String[] columnNames = {"商品名称", "商品数量", "进货单价", "销售单价", "单个利润", "已售数量"}; + tableModel = new DefaultTableModel(columnNames, 0); + table = new JTable(tableModel); + + // 滚动面板 + JScrollPane scrollPane = new JScrollPane(table); + add(scrollPane, BorderLayout.CENTER); + + // 初始化加载数据库数据 + loadData(); setVisible(true); } @Override public void actionPerformed(ActionEvent e) { + if (e.getSource() == menuItem1) { + JFrame frame = new JFrame(); + frame.setTitle("添加商品"); + frame.setLayout(new GridLayout(5, 2)); + JLabel nameLabel = new JLabel("商品名称:"); + JTextField nameField = new JTextField(); + JLabel countLabel = new JLabel("商品数量:"); + JTextField countField = new JTextField(); + JLabel purchasePriceLabel = new JLabel("进货单价:"); + JTextField purchasePriceField = new JTextField(); + JLabel sellingPriceLabel = new JLabel("销售单价:"); + JTextField sellingPriceField = new JTextField(); + JButton addButton = new JButton("添加"); + JButton cancelButton = new JButton("取消"); + frame.add(nameLabel); + frame.add(nameField); + frame.add(countLabel); + frame.add(countField); + frame.add(purchasePriceLabel); + frame.add(purchasePriceField); + frame.add(sellingPriceLabel); + frame.add(sellingPriceField); + frame.add(addButton); + frame.add(cancelButton); + addButton.addActionListener(new ActionListener() { + @Override + public void actionPerformed(ActionEvent e) { + String name = nameField.getText(); + int count = Integer.parseInt(countField.getText()); + double purchasePrice = Double.parseDouble(purchasePriceField.getText()); + double sellingPrice = Double.parseDouble(sellingPriceField.getText()); + // 调用数据库添加方法 + Jdbc jdbc = new Jdbc(); + try { + jdbc.update("INSERT INTO commodity (name, count, purchase_price, selling_price, profit, quantity_sold) VALUES ('" + name + "', " + count + ", " + purchasePrice + ", " + sellingPrice + ", " + (sellingPrice - purchasePrice) + ", 0)"); + jdbc.close(); + // 刷新数据 + loadData(); + // 关闭弹窗 + frame.dispose(); + } catch (SQLException ex) { + ex.printStackTrace(); + JOptionPane.showMessageDialog(frame, "添加商品失败: " + ex.getMessage()); + } + } + }); + cancelButton.addActionListener(new ActionListener() { + @Override + public void actionPerformed(ActionEvent e) { + frame.dispose(); + } + }); + frame.setSize(300, 200); + frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); + frame.setVisible(true); + } + else if (e.getSource() == menuItem2) { + JFrame frame = new JFrame(); + frame.setTitle("删除商品"); + frame.setLayout(new GridLayout(2, 2)); + JLabel nameLabel = new JLabel("商品名称:"); + JTextField nameField = new JTextField(); + JButton deleteButton = new JButton("删除"); + JButton cancelButton = new JButton("取消"); + frame.add(nameLabel); + frame.add(nameField); + frame.add(deleteButton); + frame.add(cancelButton); + deleteButton.addActionListener(new ActionListener() { + @Override + public void actionPerformed(ActionEvent e) { + String name = nameField.getText(); + // 调用数据库删除方法 + Jdbc jdbc = new Jdbc(); + try { + jdbc.update("DELETE FROM commodity WHERE name='" + name + "'"); + jdbc.close(); + // 刷新数据 + loadData(); + // 关闭弹窗 + frame.dispose(); + } catch (SQLException ex) { + ex.printStackTrace(); + JOptionPane.showMessageDialog(frame, "删除商品失败: " + ex.getMessage()); + } + } + }); + cancelButton.addActionListener(new ActionListener() { + @Override + public void actionPerformed(ActionEvent e) { + frame.dispose(); + } + }); + frame.setSize(300, 200); + frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); + frame.setVisible(true); + } + } + private void loadData() { + Jdbc jdbc = new Jdbc(); + try { + ResultSet rs = jdbc.query("SELECT name,count,purchase_price,selling_price,profit,quantity_sold FROM commodity"); + // 清空旧数据 + tableModel.setRowCount(0); + // 填充新数据 + while (rs.next()) { + Object[] row = { + rs.getString("name"), + rs.getInt("count"), + rs.getDouble("purchase_price"), + rs.getDouble("selling_price"), + rs.getDouble("profit"), + rs.getInt("quantity_sold") + }; + tableModel.addRow(row); + } + rs.close(); + jdbc.close(); + } catch (SQLException e) { + e.printStackTrace(); + JOptionPane.showMessageDialog(this, "加载数据失败: " + e.getMessage()); + } + } + public static void main(String[] args) { + new StockProductManagement(); } }