diff --git a/src/main/java/com/example/Home.java b/src/main/java/com/example/Home.java index 37ef1e7..dd8170e 100644 --- a/src/main/java/com/example/Home.java +++ b/src/main/java/com/example/Home.java @@ -29,7 +29,7 @@ public class Home extends JFrame implements ActionListener { Home(String username) { super("超市进销存信息管理系统"); - BackgroundPanel bgPanel = new BackgroundPanel("E:\\SuManagement\\images\\a.jpg"); + BackgroundPanel bgPanel = new BackgroundPanel("images\\a.jpg"); bgPanel.setLayout(new BorderLayout()); setContentPane(bgPanel); @@ -52,7 +52,7 @@ public class Home extends JFrame implements ActionListener { userIdentity = rs.getString("identity"); } } catch (SQLException e) { - throw new RuntimeException(e); + throw new RuntimeException(e); } if(userIdentity.equals("admin")){ UserMenu = new JButton("用户管理"); diff --git a/src/main/java/com/example/Main.java b/src/main/java/com/example/Main.java index 1406290..06f7ae2 100644 --- a/src/main/java/com/example/Main.java +++ b/src/main/java/com/example/Main.java @@ -54,7 +54,7 @@ public class Main extends JFrame implements ActionListener { ResultSet rs = jdbc.query(sql); if(rs.next()&&tf3.getText().equals(jb3.getText())) { JOptionPane.showMessageDialog(null, "登录成功"); - new Home(rs.getString("username")); + new Home(rs.getString("username")); this.setVisible(false); } else{ diff --git a/src/main/java/com/example/SalesProductManagement.java b/src/main/java/com/example/SalesProductManagement.java index ce2e9f5..4885783 100644 --- a/src/main/java/com/example/SalesProductManagement.java +++ b/src/main/java/com/example/SalesProductManagement.java @@ -6,6 +6,7 @@ import javax.swing.event.TableModelListener; import javax.swing.table.DefaultTableModel; import javax.swing.table.TableCellRenderer; import java.awt.*; +import java.awt.event.ActionEvent; import java.io.File; import java.sql.ResultSet; @@ -15,7 +16,9 @@ public class SalesProductManagement extends JFrame { private DefaultTableModel tableModel; private JTextField totalField; private JButton checkoutBtn; - private String userIdentity; // 当前用户身份 + private JButton addBtn; // 新增：上架按钮 + private JButton removeBtn; // 新增：下架按钮 + private String userIdentity; // 当前用户身份 public SalesProductManagement(String identity) { this.userIdentity = identity; @@ -27,20 +30,30 @@ public class SalesProductManagement extends JFrame { JPanel mainPanel = new JPanel(new BorderLayout()); + // 顶部按钮面板 - 新增 + JPanel topPanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 10, 10)); + addBtn = new JButton("上架商品"); + removeBtn = new JButton("从界面下架"); + // 只有管理员可以上架商品 + addBtn.setEnabled("admin".equals(userIdentity)); + topPanel.add(addBtn); + topPanel.add(removeBtn); + mainPanel.add(topPanel, BorderLayout.NORTH); + // 表格 - String[] columnNames = {"商品图片","名称","类别","单价","购买数量"}; - tableModel = new DefaultTableModel(columnNames,0){ + String[] columnNames = {"商品图片", "名称", "类别", "单价", "购买数量"}; + tableModel = new DefaultTableModel(columnNames, 0) { @Override - public boolean isCellEditable(int row, int column){ - if(column == 3) return "admin".equals(userIdentity); // 单价列 admin 可编辑 + public boolean isCellEditable(int row, int column) { + if (column == 3) return "admin".equals(userIdentity); // 单价列 admin 可编辑 return column == 4; // 购买数量列所有用户可编辑 } @Override - public Class getColumnClass(int column){ - if(column==0) return Icon.class; - if(column==3) return Double.class; - if(column==4) return Integer.class; + public Class getColumnClass(int column) { + if (column == 0) return Icon.class; + if (column == 3) return Double.class; + if (column == 4) return Integer.class; return String.class; } }; @@ -50,10 +63,11 @@ public class SalesProductManagement extends JFrame { // 图片渲染器 table.getColumnModel().getColumn(0).setCellRenderer(new TableCellRenderer() { JLabel label = new JLabel(); + @Override - public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column){ + public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { label.setHorizontalAlignment(JLabel.CENTER); - label.setIcon((Icon)value); + label.setIcon((Icon) value); return label; } }); @@ -62,7 +76,7 @@ public class SalesProductManagement extends JFrame { mainPanel.add(scrollPane, BorderLayout.CENTER); // 结算面板 - JPanel checkoutPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT,10,10)); + JPanel checkoutPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT, 10, 10)); checkoutBtn = new JButton("结算"); totalField = new JTextField(10); totalField.setEditable(false); @@ -74,41 +88,148 @@ public class SalesProductManagement extends JFrame { add(mainPanel); loadData(); - - checkoutBtn.addActionListener(e -> calculateTotal()); - - // 监听单元格变化，修改后立即更新数据库 - tableModel.addTableModelListener(e -> { - if(e.getType() == TableModelEvent.UPDATE){ - int row = e.getFirstRow(); - int col = e.getColumn(); - String name = tableModel.getValueAt(row,1).toString(); // 商品名称 - try{ - Jdbc jdbc = new Jdbc(); - if(col == 3 && "admin".equals(userIdentity)){ // 单价 - double price = Double.parseDouble(tableModel.getValueAt(row,3).toString()); - jdbc.update("UPDATE commodity SET selling_price="+price+" WHERE name='"+name+"'"); - } else if(col == 4){ // 购买数量 - int quantity = Integer.parseInt(tableModel.getValueAt(row,4).toString()); - jdbc.update("UPDATE commodity SET quantity_sold="+quantity+" WHERE name='"+name+"'"); - } - jdbc.close(); - }catch(Exception ex){ - ex.printStackTrace(); - JOptionPane.showMessageDialog(this,"更新数据库失败: "+ex.getMessage()); - } - } - }); + setupEventListeners(); // 统一管理事件监听器 setVisible(true); } - private void loadData(){ + // 新增：统一设置事件监听器 + private void setupEventListeners() { + // 结算按钮事件 + checkoutBtn.addActionListener(e -> calculateTotal()); + + // 上架按钮事件 + addBtn.addActionListener(e -> addProductFromDatabase()); + + // 下架按钮事件 + removeBtn.addActionListener(e -> removeSelectedProducts()); + + // 表格模型监听器，处理数据更新 + tableModel.addTableModelListener(e -> { + if (e.getType() == TableModelEvent.UPDATE) { + int row = e.getFirstRow(); + int col = e.getColumn(); + String name = tableModel.getValueAt(row, 1).toString(); // 商品名称 + try { + Jdbc jdbc = new Jdbc(); + if (col == 3 && "admin".equals(userIdentity)) { // 单价 + double price = Double.parseDouble(tableModel.getValueAt(row, 3).toString()); + jdbc.update("UPDATE commodity SET selling_price=" + price + " WHERE name='" + name + "'"); + } else if (col == 4) { // 购买数量 + int quantity = Integer.parseInt(tableModel.getValueAt(row, 4).toString()); + jdbc.update("UPDATE commodity SET quantity_sold=" + quantity + " WHERE name='" + name + "'"); + } + jdbc.close(); + } catch (Exception ex) { + ex.printStackTrace(); + JOptionPane.showMessageDialog(this, "更新数据库失败: " + ex.getMessage()); + } + } + }); + } + + // 新增：从数据库上架商品（选择数据库中未显示的商品添加到界面） + private void addProductFromDatabase() { + try { + Jdbc jdbc = new Jdbc(); + // 查询数据库中所有商品 + ResultSet rs = jdbc.query("SELECT name, selling_price, quantity_sold, type, image_path FROM commodity"); + + // 收集已在界面上的商品名称 + DefaultListModel availableProducts = new DefaultListModel<>(); + while (rs.next()) { + String name = rs.getString("name"); + boolean isInTable = false; + + // 检查商品是否已在表格中 + for (int i = 0; i < tableModel.getRowCount(); i++) { + if (tableModel.getValueAt(i, 1).toString().equals(name)) { + isInTable = true; + break; + } + } + + if (!isInTable) { + availableProducts.addElement(name); + } + } + rs.close(); + + if (availableProducts.size() == 0) { + JOptionPane.showMessageDialog(this, "所有商品已上架！"); + jdbc.close(); + return; + } + + // 显示可选商品列表供选择 + JList productList = new JList<>(availableProducts); + productList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION); + int result = JOptionPane.showConfirmDialog( + this, + new JScrollPane(productList), + "选择要上架的商品", + JOptionPane.OK_CANCEL_OPTION + ); + + if (result == JOptionPane.OK_OPTION) { + // 上架选中的商品 + for (String selectedName : productList.getSelectedValuesList()) { + ResultSet productRs = jdbc.query( + "SELECT name, selling_price, quantity_sold, type, image_path FROM commodity WHERE name='" + selectedName + "'" + ); + if (productRs.next()) { + String name = productRs.getString("name"); + double price = productRs.getDouble("selling_price"); + int quantity = productRs.getInt("quantity_sold"); + String type = productRs.getString("type"); + String imagePath = productRs.getString("image_path"); + + ImageIcon icon = null; + if (imagePath != null && !imagePath.isEmpty()) { + File imgFile = new File("images/" + imagePath); + if (imgFile.exists()) { + icon = new ImageIcon(new ImageIcon(imgFile.getAbsolutePath()) + .getImage().getScaledInstance(50, 50, Image.SCALE_SMOOTH)); + } + } + + Object[] row = {icon, name, type, price, quantity}; + tableModel.addRow(row); + } + productRs.close(); + } + JOptionPane.showMessageDialog(this, "已成功上架选中商品！"); + } + jdbc.close(); + } catch (Exception e) { + e.printStackTrace(); + JOptionPane.showMessageDialog(this, "上架商品失败: " + e.getMessage()); + } + } + + // 新增：从界面下架商品（仅从当前界面移除，不删除数据库记录） + private void removeSelectedProducts() { + int[] selectedRows = table.getSelectedRows(); + if (selectedRows.length == 0) { + JOptionPane.showMessageDialog(this, "请先选择要下架的商品！"); + return; + } + + // 从后往前删除，避免索引混乱 + for (int i = selectedRows.length - 1; i >= 0; i--) { + tableModel.removeRow(selectedRows[i]); + } + + JOptionPane.showMessageDialog(this, "已成功下架 " + selectedRows.length + " 件商品！"); + calculateTotal(); // 更新总金额 + } + + private void loadData() { Jdbc jdbc = new Jdbc(); - try{ + try { ResultSet rs = jdbc.query("SELECT name,selling_price,quantity_sold,type,image_path FROM commodity"); tableModel.setRowCount(0); - while(rs.next()){ + while (rs.next()) { String name = rs.getString("name"); double price = rs.getDouble("selling_price"); int quantity = rs.getInt("quantity_sold"); @@ -116,36 +237,36 @@ public class SalesProductManagement extends JFrame { String imagePath = rs.getString("image_path"); ImageIcon icon = null; - if(imagePath!=null && !imagePath.isEmpty()){ - File imgFile = new File("images/"+imagePath); - if(imgFile.exists()){ + if (imagePath != null && !imagePath.isEmpty()) { + File imgFile = new File("images/" + imagePath); + if (imgFile.exists()) { icon = new ImageIcon(new ImageIcon(imgFile.getAbsolutePath()) - .getImage().getScaledInstance(50,50,Image.SCALE_SMOOTH)); + .getImage().getScaledInstance(50, 50, Image.SCALE_SMOOTH)); } } - Object[] row = {icon,name,type,price,quantity}; + Object[] row = {icon, name, type, price, quantity}; tableModel.addRow(row); } rs.close(); jdbc.close(); - }catch(Exception e){ + } catch (Exception e) { e.printStackTrace(); - JOptionPane.showMessageDialog(this,"加载数据失败: "+e.getMessage()); + JOptionPane.showMessageDialog(this, "加载数据失败: " + e.getMessage()); } } - private void calculateTotal(){ + private void calculateTotal() { double total = 0.0; - for(int i=0;i