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fgl
2025-09-19 14:33:37 +08:00
parent 43024e6b3e
commit 76a7f5df6d
1 changed files with 51 additions and 36 deletions
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87
src/main/java/com/example/InventoryProductManagement.java
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@@ -9,78 +9,89 @@ import java.sql.ResultSet;
import java.sql.SQLException;
public class InventoryProductManagement extends JFrame implements ActionListener {
JMenuBar menuBar;
JMenu menu;
JMenuItem menuItem1,menuItem2,menuItem3;
private JTable table;
private DefaultTableModel tableModel;
JMenuBar menuBar;//创建主菜单栏容器
JMenu menu;//创建顶级菜单项“菜单”
JMenuItem menuItem1,menuItem2,menuItem3;//创建菜单子项（添加/删除商品）
private JTable table;//表格组件，用于展示商品数据
private DefaultTableModel tableModel;//表格数据模型
InventoryProductManagement() {
super("进货信息管理");
menuBar = new JMenuBar();
setJMenuBar(menuBar);
menu = new JMenu("菜单");
menuBar.add(menu);
super("进货信息管理");//设置窗口标题
menuBar = new JMenuBar();//实例化菜单栏
setJMenuBar(menuBar);//将菜单栏添加到窗体顶部
menu = new JMenu("菜单");//创建顶级菜单“菜单”
menuBar.add(menu);//将菜单添加到菜单栏
//创建菜单项
menuItem1 = new JMenuItem("添加商品");
menuItem2 = new JMenuItem("删除商品");
menuItem3 = new JMenuItem("帮助");
//添加菜单项到菜单
menu.add(menuItem1);
menu.add(menuItem2);
menu.add(menuItem3);
// menu.add(menuItem3);
//注册菜单项点击监听器（this表示当前类处理事件）
menuItem1.addActionListener(this);
menuItem2.addActionListener(this);
menuItem3.addActionListener(this);
// menuItem3.addActionListener(this);
setSize(500,500);
setLocationRelativeTo(null);
// 表头
String[] columnNames = {"商品名称", "商品数量", "进货单价"};
tableModel = new DefaultTableModel(columnNames, 0);
table = new JTable(tableModel);
setSize(500,500);//设置窗口大小
setLocationRelativeTo(null);//窗口居中显示
// 表格初始化
String[] columnNames = {"商品名称（种类）", "商品数量（件）", "进货单价（元）"};//定义表头，此处更改表头文字展示
tableModel = new DefaultTableModel(columnNames, 0);//创建空表格模型
table = new JTable(tableModel);//基于模型创建表格
// 滚动面板
// 添加带滚动条的表格面板到窗口中央
JScrollPane scrollPane = new JScrollPane(table);
add(scrollPane, BorderLayout.CENTER);
// 初始化加载数据库数据
loadData();
setVisible(true);
loadData();//加载数据库数据到表格
setVisible(true);//显示窗口
}
private void loadData() {
Jdbc jdbc = new Jdbc();
Jdbc jdbc = new Jdbc();//创建数据库连接对象
try {
//执行SQL查询（获取商品名称/库存/进阶/售价/利润/销量）
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
tableModel.setRowCount(0);//清空表格现有数据
// 填充新数据（遍历查询结果）
while (rs.next()) {
//构建表格行数据（只显示名称/库存/进阶）
Object[] row = {
rs.getString("name"),
rs.getInt("count"),
rs.getDouble("purchase_price"),
};
tableModel.addRow(row);
tableModel.addRow(row);//添加数据行到表格
}
rs.close();
jdbc.close();
rs.close();//关闭结果集
jdbc.close();//关闭数据库连接
} catch (SQLException 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());//弹出错误提示
}
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == menuItem1) {
JFrame frame = new JFrame();
JFrame frame = new JFrame();//创建添加窗口
frame.setTitle("添加商品");
frame.setLayout(new GridLayout(4, 2));
frame.setLayout(new GridLayout(4, 2));//四行两列网格布局
//创建输入组件
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();
//添加按钮和取消按钮
JButton addButton = new JButton("添加");
JButton cancelButton = new JButton("取消");
//将组件添加到窗口
frame.add(nameLabel);
frame.add(nameField);
frame.add(countLabel);
@@ -89,28 +100,30 @@ public class InventoryProductManagement extends JFrame implements ActionListener
frame.add(purchasePriceField);
frame.add(addButton);
frame.add(cancelButton);
//添加按钮事件
addButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
//获取输入值
String name = nameField.getText();
int count = Integer.parseInt(countField.getText());
double purchasePrice = Double.parseDouble(purchasePriceField.getText());
// 调用数据库添加方法
// 调用数据库添加方法 执行SQL插入（初始化销量为0）
Jdbc jdbc = new Jdbc();
try {
jdbc.update("INSERT INTO commodity (name, count, purchase_price, quantity_sold) VALUES ('" + name + "', " + count + ", " + purchasePrice + ", " + 0 + ");");
jdbc.close();
// 刷新数据
loadData();
loadData();//刷新表格数据
// 关闭弹窗
frame.dispose();
frame.dispose();//关闭添加窗口
} catch (SQLException ex) {
ex.printStackTrace();
JOptionPane.showMessageDialog(frame, "添加商品失败: " + ex.getMessage());
}
}
});
cancelButton.addActionListener(new ActionListener() {
cancelButton.addActionListener(new ActionListener() {//取消按钮事件
@Override
public void actionPerformed(ActionEvent e) {
frame.dispose();
@@ -122,7 +135,7 @@ public class InventoryProductManagement extends JFrame implements ActionListener
frame.setVisible(true);
}
else if (e.getSource() == menuItem2) {
JFrame frame = new JFrame();
JFrame frame = new JFrame();//创建删除窗口
frame.setTitle("删除商品");
frame.setLayout(new GridLayout(2, 2));
JLabel nameLabel = new JLabel("商品名称:");
@@ -133,16 +146,18 @@ public class InventoryProductManagement extends JFrame implements ActionListener
frame.add(nameField);
frame.add(deleteButton);
frame.add(cancelButton);
//删除按钮事件
deleteButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String name = nameField.getText();
String name = nameField.getText();//获取要删除的商品名
// 调用数据库删除方法
Jdbc jdbc = new Jdbc();
try {
//执行SQL删除
jdbc.update("DELETE FROM commodity WHERE name='" + name + "'");
jdbc.close();
// 刷新数据
// 刷新表格
loadData();
// 关闭弹窗
frame.dispose();
@@ -165,6 +180,6 @@ public class InventoryProductManagement extends JFrame implements ActionListener
}
}
public static void main(String[] args) {
new InventoryProductManagement();
new InventoryProductManagement();//启动应用程序
}
}