From 5339a4c0ee7e712e21fe96bc7e4e8a2af42efc38 Mon Sep 17 00:00:00 2001 From: lx <3151245148@qq.com> Date: Tue, 23 Sep 2025 17:38:56 +0800 Subject: [PATCH] =?UTF-8?q?=E4=B8=80=E6=AC=A1=E6=B5=8B=E8=AF=95?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../com/example/SalesProductManagement.java | 197 ++++++++++-------- 1 file changed, 110 insertions(+), 87 deletions(-) diff --git a/src/main/java/com/example/SalesProductManagement.java b/src/main/java/com/example/SalesProductManagement.java index cc88784..6466a49 100644 --- a/src/main/java/com/example/SalesProductManagement.java +++ b/src/main/java/com/example/SalesProductManagement.java @@ -1,104 +1,127 @@ 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 SalesProductManagement extends JFrame implements ActionListener { + private JTable table; + private DefaultTableModel tableModel; + private JTextField idField, nameField, phoneField, addressField; + private JButton addBtn; - JButton btn1; - JLabel lab1,lab2,lab3,lab4,lab5,lab6,lab7; - JTextField text2,text3,text5,text6,text8,text9,text10; - // JPasswordField passwordfile; - JPanel panel1,panel2,panel3; + public SalesProductManagement() { - - - SalesProductManagement(){ - super("销售信息管理"); - panel1 = new JPanel(); - panel2 = new JPanel(); - panel3 = new JPanel(); - lab1=new JLabel("名称",JLabel.CENTER); - lab2=new JLabel("单价",JLabel.CENTER); - lab3=new JLabel("数量",JLabel.CENTER); - lab4=new JLabel("总计：",JLabel.CENTER); - lab5=new JLabel("苹果",JLabel.CENTER); - lab6=new JLabel("香蕉",JLabel.CENTER); - lab7=new JLabel("橘子",JLabel.CENTER); - - text2=new JTextField("2"+"元",JTextField.CENTER); - text3=new JTextField(3); - text5=new JTextField("3"+"元",JTextField.CENTER); - text6=new JTextField(3); - text8=new JTextField("5"+"元",JTextField.CENTER); - text9=new JTextField(3); - text10=new JTextField(5); - - btn1=new JButton("结算"); - btn1.addActionListener(this); - - - add(panel1); - panel1.setLayout(new GridLayout(1,3,5,5)); - panel1.add(lab1); - panel1.add(lab2); - panel1.add(lab3); - panel1.setMaximumSize(new Dimension(Integer.MAX_VALUE, 40)); - add(panel2); - panel2.setLayout(new GridLayout(3,3,5,5)); - panel2.add(lab5); - panel2.add(text2); - panel2.add(text3); - panel2.add(lab6); - panel2.add(text5); - panel2.add(text6); - panel2.add(lab7); - panel2.add(text8); - panel2.add(text9); - panel2.setMaximumSize(new Dimension(Integer.MAX_VALUE, 120)); - add(panel3); - panel3.setLayout(new GridLayout(1,3,5,5)); - panel3.add(btn1); - panel3.add(lab4); - panel3.add(text10); - panel3.setMaximumSize(new Dimension(Integer.MAX_VALUE, 40)); - - - - setLayout(new GridLayout(3,1)); - setSize(500,500); + setTitle("商品信息管理"); + setSize(800, 600); setLocationRelativeTo(null); + setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); + + // 创建主面板 + JPanel mainPanel = new JPanel(new BorderLayout()); + + // 创建表格面板 + JPanel tablePanel = new JPanel(new BorderLayout()); + tablePanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); + + // 创建表格模型 + String[] columnNames = {"名称", "单价", "购买数量"}; + tableModel = new DefaultTableModel(columnNames, 0); + table = new JTable(tableModel); + table.setFont(new Font("微软雅黑", Font.PLAIN, 14)); + table.getTableHeader().setFont(new Font("微软雅黑", Font.BOLD, 14)); + table.setRowHeight(25); + + // 添加滚动面板 + JScrollPane scrollPane = new JScrollPane(table); + tablePanel.add(scrollPane, BorderLayout.CENTER); + + // 创建输入面板 + JPanel inputPanel = new JPanel(new GridLayout(1, 2, 10, 10)); + inputPanel.setBorder(BorderFactory.createTitledBorder("结算信息")); + inputPanel.setFont(new Font("微软雅黑", Font.PLAIN, 14)); + + addBtn = new JButton("结算"); + addBtn.addActionListener(this); + + + inputPanel.add(addBtn); + + inputPanel.add(new JLabel("共计:")); + addressField = new JTextField(); + inputPanel.add(addressField); + + + + + // 组装面板 + mainPanel.add(tablePanel, BorderLayout.CENTER); + mainPanel.add(inputPanel, BorderLayout.SOUTH); + + add(mainPanel); + + loadData(); + + setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); + } - @Override - public void actionPerformed(ActionEvent e) { - // 判断事件源是否为结算按钮 - if (e.getSource() == btn1) { - try { - // 获取单价（从文本框提取数字部分） - double applePrice = Double.parseDouble(text2.getText().replace("元", "")); - double bananaPrice = Double.parseDouble(text5.getText().replace("元", "")); - double orangePrice = Double.parseDouble(text8.getText().replace("元", "")); - // 获取数量（处理空输入情况） - int appleCount = text3.getText().trim().isEmpty() ? 0 : Integer.parseInt(text3.getText().trim()); - int bananaCount = text6.getText().trim().isEmpty() ? 0 : Integer.parseInt(text6.getText().trim()); - int orangeCount = text9.getText().trim().isEmpty() ? 0 : Integer.parseInt(text9.getText().trim()); - - // 计算总金额 - double total = (applePrice * appleCount) + (bananaPrice * bananaCount) + (orangePrice * orangeCount); - - // 显示结果，保留两位小数 - text10.setText(String.format("%.2f元", total)); - } catch (NumberFormatException ex) { - // 处理输入非数字的情况 - JOptionPane.showMessageDialog(this, "请输入有效的数字", "输入错误", JOptionPane.ERROR_MESSAGE); - } - } - } + //主类，调试 public static void main(String[] args) { new SalesProductManagement(); } -} + + + + private void loadData() { + Jdbc jdbc = new Jdbc(); + try { + ResultSet rs = jdbc.query("SELECT name,selling_price,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.getDouble("selling_price"), + 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()); + } + } + + @Override + public void actionPerformed(ActionEvent e) { + if(e.getSource() == addBtn) { + double total = 0.0; // 总金额 + + // 获取表格的行数 + int rowCount = tableModel.getRowCount(); + + // 遍历每一行数据 + for(int i = 0; i < rowCount; i++) { + // 获取单价（第1列，索引从0开始） + double price = (double) tableModel.getValueAt(i, 1); + // 获取数量（第2列） + int quantity = (int) tableModel.getValueAt(i, 2); + + // 计算该行的金额并累加到总金额 + total += price * quantity; + } + + // 在文本框中显示总金额 + addressField.setText(String.format("%.2f", total) + " 元"); + } + } +} \ No newline at end of file