package org.example;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.awt.*;
import java.awt.event.*;
import java.math.BigDecimal;
import java.sql.*;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
// 数据库工具类
class MySQL {
private static final String URL = "jdbc:mysql://localhost:3306/cangchu";
private static final String USER = "root";
private static final String PASSWORD = "123456";
static {
try {
Class.forName("com.mysql.cj.jdbc.Driver");
} catch (ClassNotFoundException e) {
showError("数据库驱动加载失败", e);
}
}
public static Connection getConnection() throws SQLException {
return DriverManager.getConnection(URL, USER, PASSWORD);
}
// 用户验证
public static boolean validateUser(String username, String password) {
String sql = "SELECT * FROM `管理员` WHERE `用户名`=? AND `密码`=?";
try (Connection conn = getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, username);
pstmt.setString(2, password);
return pstmt.executeQuery().next();
} catch (SQLException e) {
showError("用户验证错误", e);
return false;
}
}
// 更新密码
public static boolean updatePassword(String username, String newPassword) {
String sql = "UPDATE 管理员 SET 密码 = ? WHERE 用户名 = ?";
try (Connection conn = getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, newPassword);
pstmt.setString(2, username);
return pstmt.executeUpdate() > 0;
} catch (SQLException e) {
showError("密码更新错误", e);
return false;
}
}
// 读取表数据
public static List<Map<String, Object>> readTable(String tableName) {
List<Map<String, Object>> result = new ArrayList<>();
String sql = "SELECT * FROM " + tableName;
try (Connection conn = getConnection();
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(sql)) {
ResultSetMetaData metaData = rs.getMetaData();
int columnCount = metaData.getColumnCount();
while (rs.next()) {
Map<String, Object> row = new LinkedHashMap<>();
for (int i = 1; i <= columnCount; i++) {
row.put(metaData.getColumnName(i), rs.getObject(i));
}
result.add(row);
}
} catch (SQLException e) {
showError("数据库查询错误", e);
}
return result;
}
// 执行更新操作
public static int executeUpdate(String sql, Object... params) {
try (Connection conn = getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
for (int i = 0; i < params.length; i++) {
pstmt.setObject(i + 1, params[i]);
}
return pstmt.executeUpdate();
} catch (SQLException e) {
showError("数据库操作错误: " + sql, e);
return -1;
}
}
// 检查外键是否存在
public static boolean checkForeignKeyExists(String table, String column, String value) {
String sql = "SELECT COUNT(*) FROM " + table + " WHERE " + column + " = ?";
try (Connection conn = getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, value);
try (ResultSet rs = pstmt.executeQuery()) {
return rs.next() && rs.getInt(1) > 0;
}
} catch (SQLException e) {
showError("外键检查错误", e);
return false;
}
}
// 更新仓库容量
public static void updateWarehouseCapacity(String warehouseId, int amount, boolean isInbound) {
String sql = "UPDATE 仓库 SET 剩余容量 = 剩余容量 + ? WHERE 仓库编号 = ?";
executeUpdate(sql, isInbound ? -amount : amount, warehouseId);
}
// 更新商品库存
public static void updateProductStock(String productId, int amount, boolean isInbound) {
String sql = "UPDATE 商品 SET 库存 = 库存 + ? WHERE 商品编号 = ?";
executeUpdate(sql, isInbound ? amount : -amount, productId);
}
// 显示错误信息
static void showError(String message, Exception e) {
String errorMsg = message + ": " + e.getMessage();
if (e instanceof SQLException) {
SQLException sqlEx = (SQLException) e;
errorMsg += "\nSQL状态: " + sqlEx.getSQLState();
errorMsg += "\n错误码: " + sqlEx.getErrorCode();
}
JOptionPane.showMessageDialog(null, errorMsg, "数据库错误", JOptionPane.ERROR_MESSAGE);
e.printStackTrace();
}
}
// 登录界面
class LoginScreen {
private JFrame frame;
private JTextField usernameField;
private JPasswordField passwordField;
public void show() {
frame = new JFrame("用户登录");
frame.setSize(400, 250);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
JPanel panel = new JPanel(new GridLayout(3, 2, 10, 10));
panel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
panel.add(new JLabel("账号:"));
usernameField = new JTextField();
panel.add(usernameField);
panel.add(new JLabel("密码:"));
passwordField = new JPasswordField();
panel.add(passwordField);
JButton loginButton = new JButton("登录");
loginButton.addActionListener(e -> login());
JButton resetButton = new JButton("重置");
resetButton.addActionListener(e -> reset());
JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 20, 10));
buttonPanel.add(loginButton);
buttonPanel.add(resetButton);
frame.add(panel, BorderLayout.CENTER);
frame.add(buttonPanel, BorderLayout.SOUTH);
frame.setVisible(true);
}
private void login() {
String username = usernameField.getText().trim();
String password = new String(passwordField.getPassword());
if (username.isEmpty() || password.isEmpty()) {
JOptionPane.showMessageDialog(frame, "账号和密码不能为空！");
return;
}
if (MySQL.validateUser(username, password)) {
JOptionPane.showMessageDialog(frame, "登录成功！");
frame.dispose();
new MainMenu(username).setVisible(true);
} else {
JOptionPane.showMessageDialog(frame, "账号或密码错误！");
passwordField.setText("");
passwordField.requestFocus();
}
}
private void reset() {
usernameField.setText("");
passwordField.setText("");
}
public static void main(String[] args) {
SwingUtilities.invokeLater(() -> new LoginScreen().show());
}
}
// 主菜单界面
class MainMenu extends JFrame {
private String currentUser;
public MainMenu(String username) {
super("仓库管理系统 - 当前用户: " + username);
this.currentUser = username;
setSize(900, 600);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
JTabbedPane tabPane = new JTabbedPane();
tabPane.addTab("仓库管理", new WarehouseManager().createPanel());
tabPane.addTab("商品管理", new ProductManager().createPanel());
tabPane.addTab("供应商管理", new SupplierManager().createPanel());
tabPane.addTab("出入库管理", new InventoryManager().createPanel());
tabPane.addTab("管理员管理", new AdminManager(currentUser).createPanel());
add(tabPane);
}
}
// 仓库管理
class WarehouseManager {
private JTable table;
private DefaultTableModel model;
public JPanel createPanel() {
JPanel panel = new JPanel(new BorderLayout());
// 工具栏
JToolBar toolbar = new JToolBar();
JButton refreshBtn = new JButton("刷新");
JButton addBtn = new JButton("添加");
JButton editBtn = new JButton("修改");
JButton deleteBtn = new JButton("删除");
JButton searchBtn = new JButton("搜索");
refreshBtn.addActionListener(e -> refreshData());
addBtn.addActionListener(e -> addWarehouse());
editBtn.addActionListener(e -> editWarehouse());
deleteBtn.addActionListener(e -> deleteWarehouse());
toolbar.add(refreshBtn);
toolbar.add(addBtn);
toolbar.add(editBtn);
toolbar.add(deleteBtn);
// 搜索面板
JPanel searchPanel = new JPanel();
JTextField searchField = new JTextField(15);
searchBtn.addActionListener(e -> searchWarehouse(searchField.getText()));
searchPanel.add(new JLabel("仓库名称:"));
searchPanel.add(searchField);
searchPanel.add(searchBtn);
// 表格
model = new DefaultTableModel() {
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
};
table = new JTable(model);
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
// 设置列名
model.setColumnIdentifiers(new String[]{"仓库编号", "仓库名", "总容量", "剩余容量"});
refreshData();
// 布局
JPanel topPanel = new JPanel(new BorderLayout());
topPanel.add(toolbar, BorderLayout.NORTH);
topPanel.add(searchPanel, BorderLayout.CENTER);
panel.add(topPanel, BorderLayout.NORTH);
panel.add(new JScrollPane(table), BorderLayout.CENTER);
return panel;
}
private void refreshData() {
List<Map<String, Object>> data = MySQL.readTable("仓库");
model.setRowCount(0);
for (Map<String, Object> row : data) {
model.addRow(new Object[]{
row.get("仓库编号"),
row.get("仓库名"),
row.get("总容量"),
row.get("剩余容量")
});
}
}
private void searchWarehouse(String keyword) {
List<Map<String, Object>> data = new ArrayList<>();
String sql = "SELECT * FROM 仓库 WHERE 仓库名 LIKE ?";
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, "%" + keyword + "%");
ResultSet rs = pstmt.executeQuery();
while (rs.next()) {
Map<String, Object> row = new LinkedHashMap<>();
row.put("仓库编号", rs.getString("仓库编号"));
row.put("仓库名", rs.getString("仓库名"));
row.put("总容量", rs.getInt("总容量"));
row.put("剩余容量", rs.getInt("剩余容量"));
data.add(row);
}
} catch (SQLException e) {
MySQL.showError("搜索错误", e);
}
model.setRowCount(0);
for (Map<String, Object> row : data) {
model.addRow(new Object[]{
row.get("仓库编号"),
row.get("仓库名"),
row.get("总容量"),
row.get("剩余容量")
});
}
}
private void addWarehouse() {
JDialog dialog = new JDialog((Frame) null, "添加仓库", true);
dialog.setSize(400, 300);
dialog.setLayout(new GridLayout(5, 2, 10, 10));
dialog.setLocationRelativeTo(null);
JTextField idField = new JTextField();
JTextField nameField = new JTextField();
JTextField capacityField = new JTextField();
JTextField remainingField = new JTextField();
JButton submitBtn = new JButton("提交");
submitBtn.addActionListener(e -> {
try {
String id = idField.getText().trim();
String name = nameField.getText().trim();
int capacity = Integer.parseInt(capacityField.getText().trim());
int remaining = Integer.parseInt(remainingField.getText().trim());
// 验证输入
if (id.isEmpty() || name.isEmpty()) {
JOptionPane.showMessageDialog(dialog, "仓库编号和名称不能为空!");
return;
}
if (capacity <= 0 || remaining < 0) {
JOptionPane.showMessageDialog(dialog, "容量必须为正数!");
return;
}
if (remaining > capacity) {
JOptionPane.showMessageDialog(dialog, "剩余容量必须等于总容量!");
return;
} if (remaining <capacity) {
JOptionPane.showMessageDialog(dialog, "剩余容量必须等于总容量!");
return;
}
// 执行SQL
if (MySQL.executeUpdate(
"INSERT INTO 仓库 (仓库编号, 仓库名, 总容量, 剩余容量) VALUES (?, ?, ?, ?)",
id, name, capacity, remaining) > 0) {
JOptionPane.showMessageDialog(dialog, "仓库添加成功!");
dialog.dispose();
refreshData();
} else {
JOptionPane.showMessageDialog(dialog, "仓库添加失败!");
}
} catch (NumberFormatException ex) {
JOptionPane.showMessageDialog(dialog, "请输入有效的数字!");
}
});
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dialog.dispose());
// 添加组件
dialog.add(new JLabel("仓库编号:"));
dialog.add(idField);
dialog.add(new JLabel("仓库名称:"));
dialog.add(nameField);
dialog.add(new JLabel("总容量:"));
dialog.add(capacityField);
dialog.add(new JLabel("剩余容量:"));
dialog.add(remainingField);
dialog.add(submitBtn);
dialog.add(cancelBtn);
dialog.setVisible(true);
}
private void editWarehouse() {
int row = table.getSelectedRow();
if (row == -1) {
JOptionPane.showMessageDialog(null, "请选择要修改的仓库");
return;
}
String id = (String) table.getValueAt(row, 0);
String name = (String) table.getValueAt(row, 1);
int capacity = (int) table.getValueAt(row, 2);
int remaining = (int) table.getValueAt(row, 3);
JDialog dialog = new JDialog((Frame) null, "修改仓库", true);
dialog.setSize(400, 300);
dialog.setLayout(new GridLayout(5, 2, 10, 10));
dialog.setLocationRelativeTo(null);
JTextField idField = new JTextField(id);
idField.setEditable(false);
JTextField nameField = new JTextField(name);
JTextField capacityField = new JTextField(String.valueOf(capacity));
JTextField remainingField = new JTextField(String.valueOf(remaining));
JButton submitBtn = new JButton("提交");
submitBtn.addActionListener(e -> {
try {
String newName = nameField.getText().trim();
int newCapacity = Integer.parseInt(capacityField.getText().trim());
int newRemaining = Integer.parseInt(remainingField.getText().trim());
// 验证输入
if (newName.isEmpty()) {
JOptionPane.showMessageDialog(dialog, "仓库名称不能为空!");
return;
}
if (newCapacity <= 0 || newRemaining < 0) {
JOptionPane.showMessageDialog(dialog, "容量必须为正数!");
return;
}
if (newRemaining > newCapacity) {
JOptionPane.showMessageDialog(dialog, "剩余容量不能大于总容量!");
return;
}
// 执行SQL
if (MySQL.executeUpdate(
"UPDATE 仓库 SET 仓库名=?, 总容量=?, 剩余容量=? WHERE 仓库编号=?",
newName, newCapacity, newRemaining, id) > 0) {
JOptionPane.showMessageDialog(dialog, "仓库信息更新成功!");
dialog.dispose();
refreshData();
} else {
JOptionPane.showMessageDialog(dialog, "仓库信息更新失败!");
}
} catch (NumberFormatException ex) {
JOptionPane.showMessageDialog(dialog, "请输入有效的数字!");
}
});
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dialog.dispose());
// 添加组件
dialog.add(new JLabel("仓库编号:"));
dialog.add(idField);
dialog.add(new JLabel("仓库名称:"));
dialog.add(nameField);
dialog.add(new JLabel("总容量:"));
dialog.add(capacityField);
dialog.add(new JLabel("剩余容量:"));
dialog.add(remainingField);
dialog.add(submitBtn);
dialog.add(cancelBtn);
dialog.setVisible(true);
}
private void deleteWarehouse() {
int row = table.getSelectedRow();
if (row == -1) {
JOptionPane.showMessageDialog(null, "请选择要删除的仓库");
return;
}
String id = (String) table.getValueAt(row, 0);
String name = (String) table.getValueAt(row, 1);
int confirm = JOptionPane.showConfirmDialog(
null,
"确定要删除仓库: " + name + " (ID: " + id + ")?",
"确认删除",
JOptionPane.YES_NO_OPTION
);
if (confirm == JOptionPane.YES_OPTION) {
if (hasInventoryRecords(id)) {
JOptionPane.showMessageDialog(null, "该仓库有出入库记录，无法删除!");
return;
}
if (MySQL.executeUpdate("DELETE FROM 仓库 WHERE 仓库编号=?", id) > 0) {
JOptionPane.showMessageDialog(null, "仓库删除成功!");
refreshData();
} else {
JOptionPane.showMessageDialog(null, "仓库删除失败!");
}
}
}
private boolean hasInventoryRecords(String warehouseId) {
String sql = "SELECT COUNT(*) FROM 出入库 WHERE 仓库ID = ?";
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, warehouseId);
try (ResultSet rs = pstmt.executeQuery()) {
return rs.next() && rs.getInt(1) > 0;
}
} catch (SQLException e) {
MySQL.showError("记录检查错误", e);
return true;
}
}
}
// 商品管理
class ProductManager {
private JTable table;
private DefaultTableModel model;
public JPanel createPanel() {
JPanel panel = new JPanel(new BorderLayout());
// 工具栏
JToolBar toolbar = new JToolBar();
JButton refreshBtn = new JButton("刷新");
JButton addBtn = new JButton("添加");
JButton editBtn = new JButton("修改");
JButton deleteBtn = new JButton("删除");
refreshBtn.addActionListener(e -> refreshData());
addBtn.addActionListener(e -> addProduct());
editBtn.addActionListener(e -> editProduct());
deleteBtn.addActionListener(e -> deleteProduct());
toolbar.add(refreshBtn);
toolbar.add(addBtn);
toolbar.add(editBtn);
toolbar.add(deleteBtn);
// 搜索面板
JPanel searchPanel = new JPanel();
JTextField nameField = new JTextField(10);
JTextField categoryField = new JTextField(10);
JButton searchBtn = new JButton("搜索");
searchBtn.addActionListener(e -> searchProducts(
nameField.getText().trim(),
categoryField.getText().trim()
));
searchPanel.add(new JLabel("商品名称:"));
searchPanel.add(nameField);
searchPanel.add(new JLabel("商品类别:"));
searchPanel.add(categoryField);
searchPanel.add(searchBtn);
// 表格
model = new DefaultTableModel() {
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
};
table = new JTable(model);
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
// 设置列名
model.setColumnIdentifiers(new String[]{
"商品编号", "商品名", "供应商ID", "产地", "类别", "价格", "库存"
});
refreshData();
// 布局
JPanel topPanel = new JPanel(new BorderLayout());
topPanel.add(toolbar, BorderLayout.NORTH);
topPanel.add(searchPanel, BorderLayout.CENTER);
panel.add(topPanel, BorderLayout.NORTH);
panel.add(new JScrollPane(table), BorderLayout.CENTER);
return panel;
}
private void refreshData() {
List<Map<String, Object>> data = MySQL.readTable("商品");
model.setRowCount(0);
for (Map<String, Object> row : data) {
model.addRow(new Object[]{
row.get("商品编号"),
row.get("商品名"),
row.get("供应商ID"),
row.get("产地"),
row.get("类别"),
row.get("价格"),
row.get("库存")
});
}
}
private void searchProducts(String name, String category) {
List<Map<String, Object>> data = new ArrayList<>();
String sql = "SELECT * FROM 商品 WHERE 商品名 LIKE ? AND 类别 LIKE ?";
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, "%" + name + "%");
pstmt.setString(2, "%" + category + "%");
ResultSet rs = pstmt.executeQuery();
while (rs.next()) {
Map<String, Object> row = new LinkedHashMap<>();
row.put("商品编号", rs.getString("商品编号"));
row.put("商品名", rs.getString("商品名"));
row.put("供应商ID", rs.getString("供应商ID"));
row.put("产地", rs.getString("产地"));
row.put("类别", rs.getString("类别"));
row.put("价格", rs.getBigDecimal("价格"));
row.put("库存", rs.getInt("库存"));
data.add(row);
}
} catch (SQLException e) {
MySQL.showError("搜索错误", e);
}
model.setRowCount(0);
for (Map<String, Object> row : data) {
model.addRow(new Object[]{
row.get("商品编号"),
row.get("商品名"),
row.get("供应商ID"),
row.get("产地"),
row.get("类别"),
row.get("价格"),
row.get("库存")
});
}
}
private void addProduct() {
JDialog dialog = new JDialog((Frame) null, "添加商品", true);
dialog.setSize(500, 400);
dialog.setLayout(new GridLayout(7, 2, 10, 10));
dialog.setLocationRelativeTo(null);
JTextField idField = new JTextField();
JTextField nameField = new JTextField();
JTextField supplierIdField = new JTextField();
JTextField originField = new JTextField();
JTextField categoryField = new JTextField();
JTextField priceField = new JTextField();
JTextField stockField = new JTextField("0"); // 默认库存为0
JButton submitBtn = new JButton("提交");
submitBtn.addActionListener(e -> {
try {
String id = idField.getText().trim();
String name = nameField.getText().trim();
String supplierId = supplierIdField.getText().trim();
String origin = originField.getText().trim();
String category = categoryField.getText().trim();
double price = Double.parseDouble(priceField.getText().trim());
int stock = Integer.parseInt(stockField.getText().trim());
// 验证输入
if (id.isEmpty() || name.isEmpty()) {
JOptionPane.showMessageDialog(dialog, "商品编号和名称不能为空!");
return;
}
if (!MySQL.checkForeignKeyExists("供应商", "供应商编号", supplierId)) {
JOptionPane.showMessageDialog(dialog, "供应商ID不存在!");
return;
}
if (price <= 0) {
JOptionPane.showMessageDialog(dialog, "价格必须大于0!");
return;
}
if (stock < 0) {
JOptionPane.showMessageDialog(dialog, "库存不能为负数!");
return;
}
// 执行SQL
if (MySQL.executeUpdate(
"INSERT INTO 商品 (商品编号, 商品名, 供应商ID, 产地, 类别, 价格, 库存) VALUES (?, ?, ?, ?, ?, ?, ?)",
id, name, supplierId, origin, category, price, stock) > 0) {
JOptionPane.showMessageDialog(dialog, "商品添加成功!");
dialog.dispose();
refreshData();
} else {
JOptionPane.showMessageDialog(dialog, "商品添加失败!");
}
} catch (NumberFormatException ex) {
JOptionPane.showMessageDialog(dialog, "请输入有效的数字!");
}
});
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dialog.dispose());
// 添加组件
dialog.add(new JLabel("商品编号:"));
dialog.add(idField);
dialog.add(new JLabel("商品名称:"));
dialog.add(nameField);
dialog.add(new JLabel("供应商ID:"));
dialog.add(supplierIdField);
dialog.add(new JLabel("产地:"));
dialog.add(originField);
dialog.add(new JLabel("类别:"));
dialog.add(categoryField);
dialog.add(new JLabel("价格:"));
dialog.add(priceField);
dialog.add(new JLabel("库存:"));
dialog.add(stockField);
dialog.add(submitBtn);
dialog.add(cancelBtn);
dialog.setVisible(true);
}
private void editProduct() {
int row = table.getSelectedRow();
if (row == -1) {
JOptionPane.showMessageDialog(null, "请选择要修改的商品");
return;
}
String id = (String) table.getValueAt(row, 0);
String name = (String) table.getValueAt(row, 1);
String supplierId = (String) table.getValueAt(row, 2);
String origin = (String) table.getValueAt(row, 3);
String category = (String) table.getValueAt(row, 4);
BigDecimal price = (BigDecimal) table.getValueAt(row, 5);
int stock = (int) table.getValueAt(row, 6);
JDialog dialog = new JDialog((Frame) null, "修改商品", true);
dialog.setSize(500, 400);
dialog.setLayout(new GridLayout(7, 2, 10, 10));
dialog.setLocationRelativeTo(null);
JTextField idField = new JTextField(id);
idField.setEditable(false);
JTextField nameField = new JTextField(name);
JTextField supplierIdField = new JTextField(supplierId);
JTextField originField = new JTextField(origin);
JTextField categoryField = new JTextField(category);
JTextField priceField = new JTextField(price.toString());
JTextField stockField = new JTextField(String.valueOf(stock));
JButton submitBtn = new JButton("提交");
submitBtn.addActionListener(e -> {
try {
String newName = nameField.getText().trim();
String newSupplierId = supplierIdField.getText().trim();
String newOrigin = originField.getText().trim();
String newCategory = categoryField.getText().trim();
double newPrice = Double.parseDouble(priceField.getText().trim());
int newStock = Integer.parseInt(stockField.getText().trim());
// 验证输入
if (newName.isEmpty()) {
JOptionPane.showMessageDialog(dialog, "商品名称不能为空!");
return;
}
if (!MySQL.checkForeignKeyExists("供应商", "供应商编号", newSupplierId)) {
JOptionPane.showMessageDialog(dialog, "供应商ID不存在!");
return;
}
if (newPrice <= 0) {
JOptionPane.showMessageDialog(dialog, "价格必须大于0!");
return;
}
if (newStock < 0) {
JOptionPane.showMessageDialog(dialog, "库存不能为负数!");
return;
}
// 执行SQL
if (MySQL.executeUpdate(
"UPDATE 商品 SET 商品名=?, 供应商ID=?, 产地=?, 类别=?, 价格=?, 库存=? WHERE 商品编号=?",
newName, newSupplierId, newOrigin, newCategory, newPrice, newStock, id) > 0) {
JOptionPane.showMessageDialog(dialog, "商品信息更新成功!");
dialog.dispose();
refreshData();
} else {
JOptionPane.showMessageDialog(dialog, "商品信息更新失败!");
}
} catch (NumberFormatException ex) {
JOptionPane.showMessageDialog(dialog, "请输入有效的数字!");
}
});
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dialog.dispose());
// 添加组件
dialog.add(new JLabel("商品编号:"));
dialog.add(idField);
dialog.add(new JLabel("商品名称:"));
dialog.add(nameField);
dialog.add(new JLabel("供应商ID:"));
dialog.add(supplierIdField);
dialog.add(new JLabel("产地:"));
dialog.add(originField);
dialog.add(new JLabel("类别:"));
dialog.add(categoryField);
dialog.add(new JLabel("价格:"));
dialog.add(priceField);
dialog.add(new JLabel("库存:"));
dialog.add(stockField);
dialog.add(submitBtn);
dialog.add(cancelBtn);
dialog.setVisible(true);
}
private void deleteProduct() {
int row = table.getSelectedRow();
if (row == -1) {
JOptionPane.showMessageDialog(null, "请选择要删除的商品");
return;
}
String id = (String) table.getValueAt(row, 0);
String name = (String) table.getValueAt(row, 1);
int confirm = JOptionPane.showConfirmDialog(
null,
"确定要删除商品: " + name + " (ID: " + id + ")?",
"确认删除",
JOptionPane.YES_NO_OPTION
);
if (confirm == JOptionPane.YES_OPTION) {
if (hasInventoryRecords(id)) {
JOptionPane.showMessageDialog(null, "该商品有出入库记录，无法删除!");
return;
}
if (MySQL.executeUpdate("DELETE FROM 商品 WHERE 商品编号=?", id) > 0) {
JOptionPane.showMessageDialog(null, "商品删除成功!");
refreshData();
} else {
JOptionPane.showMessageDialog(null, "商品删除失败!");
}
}
}
private boolean hasInventoryRecords(String productId) {
String sql = "SELECT COUNT(*) FROM 出入库 WHERE 商品ID = ?";
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, productId);
try (ResultSet rs = pstmt.executeQuery()) {
return rs.next() && rs.getInt(1) > 0;
}
} catch (SQLException e) {
MySQL.showError("记录检查错误", e);
return true;
}
}
}
// 供应商管理
class SupplierManager {
private JTable table;
private DefaultTableModel model;
public JPanel createPanel() {
JPanel panel = new JPanel(new BorderLayout());
// 工具栏
JToolBar toolbar = new JToolBar();
JButton refreshBtn = new JButton("刷新");
JButton addBtn = new JButton("添加");
JButton editBtn = new JButton("修改");
JButton deleteBtn = new JButton("删除");
refreshBtn.addActionListener(e -> refreshData());
addBtn.addActionListener(e -> addSupplier());
editBtn.addActionListener(e -> editSupplier());
deleteBtn.addActionListener(e -> deleteSupplier());
toolbar.add(refreshBtn);
toolbar.add(addBtn);
toolbar.add(editBtn);
toolbar.add(deleteBtn);
// 搜索面板
JPanel searchPanel = new JPanel();
JTextField nameField = new JTextField(10);
JTextField regionField = new JTextField(10);
JButton searchBtn = new JButton("搜索");
searchBtn.addActionListener(e -> searchSuppliers(
nameField.getText().trim(),
regionField.getText().trim()
));
searchPanel.add(new JLabel("供应商名称:"));
searchPanel.add(nameField);
searchPanel.add(new JLabel("所在地区:"));
searchPanel.add(regionField);
searchPanel.add(searchBtn);
// 表格
model = new DefaultTableModel() {
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
};
table = new JTable(model);
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
// 设置列名
model.setColumnIdentifiers(new String[]{
"供应商编号", "供应商名", "供应商地址", "供应商电话"
});
refreshData();
// 布局
JPanel topPanel = new JPanel(new BorderLayout());
topPanel.add(toolbar, BorderLayout.NORTH);
topPanel.add(searchPanel, BorderLayout.CENTER);
panel.add(topPanel, BorderLayout.NORTH);
panel.add(new JScrollPane(table), BorderLayout.CENTER);
return panel;
}
private void refreshData() {
List<Map<String, Object>> data = MySQL.readTable("供应商");
model.setRowCount(0);
for (Map<String, Object> row : data) {
model.addRow(new Object[]{
row.get("供应商编号"),
row.get("供应商名"),
row.get("供应商地址"),
row.get("供应商电话")
});
}
}
private void searchSuppliers(String name, String region) {
List<Map<String, Object>> data = new ArrayList<>();
String sql = "SELECT * FROM 供应商 WHERE 供应商名 LIKE ? AND 供应商地址 LIKE ?";
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, "%" + name + "%");
pstmt.setString(2, "%" + region + "%");
ResultSet rs = pstmt.executeQuery();
while (rs.next()) {
Map<String, Object> row = new LinkedHashMap<>();
row.put("供应商编号", rs.getString("供应商编号"));
row.put("供应商名", rs.getString("供应商名"));
row.put("供应商地址", rs.getString("供应商地址"));
row.put("供应商电话", rs.getString("供应商电话"));
data.add(row);
}
} catch (SQLException e) {
MySQL.showError("搜索错误", e);
}
model.setRowCount(0);
for (Map<String, Object> row : data) {
model.addRow(new Object[]{
row.get("供应商编号"),
row.get("供应商名"),
row.get("供应商地址"),
row.get("供应商电话")
});
}
}
private void addSupplier() {
JDialog dialog = new JDialog((Frame) null, "添加供应商", true);
dialog.setSize(500, 300);
dialog.setLayout(new GridLayout(5, 2, 10, 10));
dialog.setLocationRelativeTo(null);
JTextField idField = new JTextField();
JTextField nameField = new JTextField();
JTextField addressField = new JTextField();
JTextField phoneField = new JTextField();
JButton submitBtn = new JButton("提交");
submitBtn.addActionListener(e -> {
String id = idField.getText().trim();
String name = nameField.getText().trim();
String address = addressField.getText().trim();
String phone = phoneField.getText().trim();
// 验证输入
if (id.isEmpty() || name.isEmpty()) {
JOptionPane.showMessageDialog(dialog, "供应商编号和名称不能为空!");
return;
}
// 执行SQL
if (MySQL.executeUpdate(
"INSERT INTO 供应商 (供应商编号, 供应商名, 供应商地址, 供应商电话) VALUES (?, ?, ?, ?)",
id, name, address, phone) > 0) {
JOptionPane.showMessageDialog(dialog, "供应商添加成功!");
dialog.dispose();
refreshData();
} else {
JOptionPane.showMessageDialog(dialog, "供应商添加失败!");
}
});
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dialog.dispose());
// 添加组件
dialog.add(new JLabel("供应商编号:"));
dialog.add(idField);
dialog.add(new JLabel("供应商名称:"));
dialog.add(nameField);
dialog.add(new JLabel("供应商地址:"));
dialog.add(addressField);
dialog.add(new JLabel("供应商电话:"));
dialog.add(phoneField);
dialog.add(submitBtn);
dialog.add(cancelBtn);
dialog.setVisible(true);
}
private void editSupplier() {
int row = table.getSelectedRow();
if (row == -1) {
JOptionPane.showMessageDialog(null, "请选择要修改的供应商");
return;
}
String id = (String) table.getValueAt(row, 0);
String name = (String) table.getValueAt(row, 1);
String address = (String) table.getValueAt(row, 2);
String phone = (String) table.getValueAt(row, 3);
JDialog dialog = new JDialog((Frame) null, "修改供应商", true);
dialog.setSize(500, 300);
dialog.setLayout(new GridLayout(5, 2, 10, 10));
dialog.setLocationRelativeTo(null);
JTextField idField = new JTextField(id);
idField.setEditable(false);
JTextField nameField = new JTextField(name);
JTextField addressField = new JTextField(address);
JTextField phoneField = new JTextField(phone);
JButton submitBtn = new JButton("提交");
submitBtn.addActionListener(e -> {
String newName = nameField.getText().trim();
String newAddress = addressField.getText().trim();
String newPhone = phoneField.getText().trim();
// 验证输入
if (newName.isEmpty()) {
JOptionPane.showMessageDialog(dialog, "供应商名称不能为空!");
return;
}
// 执行SQL
if (MySQL.executeUpdate(
"UPDATE 供应商 SET 供应商名=?, 供应商地址=?, 供应商电话=? WHERE 供应商编号=?",
newName, newAddress, newPhone, id) > 0) {
JOptionPane.showMessageDialog(dialog, "供应商信息更新成功!");
dialog.dispose();
refreshData();
} else {
JOptionPane.showMessageDialog(dialog, "供应商信息更新失败!");
}
});
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dialog.dispose());
// 添加组件
dialog.add(new JLabel("供应商编号:"));
dialog.add(idField);
dialog.add(new JLabel("供应商名称:"));
dialog.add(nameField);
dialog.add(new JLabel("供应商地址:"));
dialog.add(addressField);
dialog.add(new JLabel("供应商电话:"));
dialog.add(phoneField);
dialog.add(submitBtn);
dialog.add(cancelBtn);
dialog.setVisible(true);
}
private void deleteSupplier() {
int row = table.getSelectedRow();
if (row == -1) {
JOptionPane.showMessageDialog(null, "请选择要删除的供应商");
return;
}
String id = (String) table.getValueAt(row, 0);
String name = (String) table.getValueAt(row, 1);
int confirm = JOptionPane.showConfirmDialog(
null,
"确定要删除供应商: " + name + " (ID: " + id + ")?",
"确认删除",
JOptionPane.YES_NO_OPTION
);
if (confirm == JOptionPane.YES_OPTION) {
if (hasRelatedProducts(id)) {
JOptionPane.showMessageDialog(null, "该供应商有商品记录，无法删除!");
return;
}
if (MySQL.executeUpdate("DELETE FROM 供应商 WHERE 供应商编号=?", id) > 0) {
JOptionPane.showMessageDialog(null, "供应商删除成功!");
refreshData();
} else {
JOptionPane.showMessageDialog(null, "供应商删除失败!");
}
}
}
private boolean hasRelatedProducts(String supplierId) {
String sql = "SELECT COUNT(*) FROM 商品 WHERE 供应商ID = ?";
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, supplierId);
try (ResultSet rs = pstmt.executeQuery()) {
return rs.next() && rs.getInt(1) > 0;
}
} catch (SQLException e) {
MySQL.showError("记录检查错误", e);
return true;
}
}
}
// 出入库管理
class InventoryManager {
private JTabbedPane tabbedPane = new JTabbedPane();
private Map<String, DefaultTableModel> models = new LinkedHashMap<>();
private Map<String, JTable> tables = new LinkedHashMap<>();
public JPanel createPanel() {
JPanel panel = new JPanel(new BorderLayout());
tabbedPane.addTab("入库管理", createInventoryPanel("入库"));
tabbedPane.addTab("出库管理", createInventoryPanel("出库"));
panel.add(tabbedPane, BorderLayout.CENTER);
return panel;
}
private JPanel createInventoryPanel(String type) {
JPanel panel = new JPanel(new BorderLayout());
// 工具栏
JToolBar toolbar = new JToolBar();
JButton addBtn = new JButton("添加");
JButton editBtn = new JButton("修改");
JButton deleteBtn = new JButton("删除");
JButton refreshBtn = new JButton("刷新");
JButton capacityBtn = new JButton("仓库容量");
JButton stockBtn = new JButton("商品库存");
addBtn.addActionListener(e -> addRecord(type));
editBtn.addActionListener(e -> editRecord(type));
deleteBtn.addActionListener(e -> deleteRecord(type));
refreshBtn.addActionListener(e -> refreshData(type));
capacityBtn.addActionListener(e -> showWarehouseCapacity());
stockBtn.addActionListener(e -> showProductStock());
toolbar.add(addBtn);
toolbar.add(editBtn);
toolbar.add(deleteBtn);
toolbar.add(refreshBtn);
toolbar.add(capacityBtn);
toolbar.add(stockBtn);
// 搜索面板
JPanel searchPanel = new JPanel();
JTextField warehouseField = new JTextField(8);
JTextField productField = new JTextField(8);
JTextField dateField = new JTextField(8);
JButton searchBtn = new JButton("搜索");
searchBtn.addActionListener(e -> searchRecords(
type,
warehouseField.getText().trim(),
productField.getText().trim(),
dateField.getText().trim()
));
searchPanel.add(new JLabel("仓库ID:"));
searchPanel.add(warehouseField);
searchPanel.add(new JLabel("商品ID:"));
searchPanel.add(productField);
searchPanel.add(new JLabel("日期:"));
searchPanel.add(dateField);
searchPanel.add(searchBtn);
// 表格
DefaultTableModel model = new DefaultTableModel() {
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
};
model.setColumnIdentifiers(new String[]{"编号", "仓库ID", "商品ID", "商品数量", "日期", "类型"});
models.put(type, model);
JTable table = new JTable(model);
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
tables.put(type, table);
refreshData(type);
// 布局
JPanel topPanel = new JPanel(new BorderLayout());
topPanel.add(toolbar, BorderLayout.NORTH);
topPanel.add(searchPanel, BorderLayout.CENTER);
panel.add(topPanel, BorderLayout.NORTH);
panel.add(new JScrollPane(table), BorderLayout.CENTER);
return panel;
}
private void refreshData(String type) {
List<Map<String, Object>> data = MySQL.readTable("出入库");
DefaultTableModel model = models.get(type);
model.setRowCount(0);
for (Map<String, Object> row : data) {
if (type.equals(row.get("类型"))) {
model.addRow(new Object[]{
row.get("编号"),
row.get("仓库ID"),
row.get("商品ID"),
row.get("商品数量"),
row.get("日期"),
row.get("类型")
});
}
}
}
private void searchRecords(String type, String warehouseId, String productId, String date) {
DefaultTableModel model = models.get(type);
model.setRowCount(0);
StringBuilder sql = new StringBuilder("SELECT * FROM 出入库 WHERE 类型=?");
List<Object> params = new ArrayList<>();
params.add(type);
if (!warehouseId.isEmpty()) {
sql.append(" AND 仓库ID LIKE ?");
params.add("%" + warehouseId + "%");
}
if (!productId.isEmpty()) {
sql.append(" AND 商品ID LIKE ?");
params.add("%" + productId + "%");
}
if (!date.isEmpty()) {
sql.append(" AND 日期 LIKE ?");
params.add("%" + date + "%");
}
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql.toString())) {
for (int i = 0; i < params.size(); i++) {
pstmt.setObject(i + 1, params.get(i));
}
ResultSet rs = pstmt.executeQuery();
while (rs.next()) {
model.addRow(new Object[]{
rs.getString("编号"),
rs.getString("仓库ID"),
rs.getString("商品ID"),
rs.getInt("商品数量"),
rs.getString("日期"),
rs.getString("类型")
});
}
} catch (SQLException e) {
MySQL.showError("搜索错误", e);
}
}
private void addRecord(String type) {
JDialog dialog = new JDialog((Frame) null, type + "记录", true);
dialog.setSize(500, 300);
dialog.setLayout(new GridLayout(5, 2, 10, 10));
dialog.setLocationRelativeTo(null);
JTextField warehouseField = new JTextField();
JTextField productField = new JTextField();
JTextField quantityField = new JTextField();
JTextField dateField = new JTextField();
JButton submitBtn = new JButton("提交");
submitBtn.addActionListener(e -> {
try {
String warehouseId = warehouseField.getText().trim();
String productId = productField.getText().trim();
int quantity = Integer.parseInt(quantityField.getText().trim());
String date = dateField.getText().trim();
// 验证输入
if (warehouseId.isEmpty() || productId.isEmpty() || date.isEmpty()) {
JOptionPane.showMessageDialog(dialog, "所有字段都必须填写!");
return;
}
if (!MySQL.checkForeignKeyExists("仓库", "仓库编号", warehouseId)) {
JOptionPane.showMessageDialog(dialog, "仓库ID不存在!");
return;
}
if (!MySQL.checkForeignKeyExists("商品", "商品编号", productId)) {
JOptionPane.showMessageDialog(dialog, "商品ID不存在!");
return;
}
if (quantity <= 0) {
JOptionPane.showMessageDialog(dialog, "商品数量必须大于0!");
return;
}
boolean isInbound = "入库".equals(type);
// 检查容量/库存
if (isInbound && !checkWarehouseCapacity(warehouseId, quantity)) {
JOptionPane.showMessageDialog(dialog, "仓库剩余容量不足!");
return;
}
if (!isInbound && !checkProductStock(productId, quantity)) {
JOptionPane.showMessageDialog(dialog, "商品库存不足!");
return;
}
// 执行SQL
if (MySQL.executeUpdate(
"INSERT INTO 出入库 (仓库ID, 商品ID, 商品数量, 日期, 类型) VALUES (?, ?, ?, ?, ?)",
warehouseId, productId, quantity, date, type) > 0) {
// 更新仓库容量和商品库存
MySQL.updateWarehouseCapacity(warehouseId, quantity, isInbound);
MySQL.updateProductStock(productId, quantity, isInbound);
JOptionPane.showMessageDialog(dialog, type + "记录添加成功!");
dialog.dispose();
refreshData(type);
} else {
JOptionPane.showMessageDialog(dialog, type + "记录添加失败!");
}
} catch (NumberFormatException ex) {
JOptionPane.showMessageDialog(dialog, "请输入有效的数字!");
}
});
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dialog.dispose());
// 添加组件
dialog.add(new JLabel("仓库ID:"));
dialog.add(warehouseField);
dialog.add(new JLabel("商品ID:"));
dialog.add(productField);
dialog.add(new JLabel("商品数量:"));
dialog.add(quantityField);
dialog.add(new JLabel("日期(YYYY-MM-DD):"));
dialog.add(dateField);
dialog.add(submitBtn);
dialog.add(cancelBtn);
dialog.setVisible(true);
}
private boolean checkWarehouseCapacity(String warehouseId, int quantity) {
String sql = "SELECT 剩余容量 FROM 仓库 WHERE 仓库编号 = ?";
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, warehouseId);
try (ResultSet rs = pstmt.executeQuery()) {
return rs.next() && rs.getInt("剩余容量") >= quantity;
}
} catch (SQLException e) {
MySQL.showError("容量检查错误", e);
return false;
}
}
private boolean checkProductStock(String productId, int quantity) {
String sql = "SELECT 库存 FROM 商品 WHERE 商品编号 = ?";
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, productId);
try (ResultSet rs = pstmt.executeQuery()) {
return rs.next() && rs.getInt("库存") >= quantity;
}
} catch (SQLException e) {
MySQL.showError("库存检查错误", e);
return false;
}
}
private void showWarehouseCapacity() {
String warehouseId = JOptionPane.showInputDialog("请输入仓库编号:");
if (warehouseId != null && !warehouseId.isEmpty()) {
String sql = "SELECT 剩余容量 FROM 仓库 WHERE 仓库编号 = ?";
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, warehouseId);
try (ResultSet rs = pstmt.executeQuery()) {
if (rs.next()) {
JOptionPane.showMessageDialog(null,
"仓库 " + warehouseId + " 的剩余容量: " + rs.getInt("剩余容量"));
} else {
JOptionPane.showMessageDialog(null, "未找到仓库!");
}
}
} catch (SQLException e) {
MySQL.showError("查询错误", e);
}
}
}
private void showProductStock() {
String productId = JOptionPane.showInputDialog("请输入商品编号:");
if (productId != null && !productId.isEmpty()) {
String sql = "SELECT 库存 FROM 商品 WHERE 商品编号 = ?";
try (Connection conn = MySQL.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql)) {
pstmt.setString(1, productId);
try (ResultSet rs = pstmt.executeQuery()) {
if (rs.next()) {
JOptionPane.showMessageDialog(null,
"商品 " + productId + " 的库存: " + rs.getInt("库存"));
} else {
JOptionPane.showMessageDialog(null, "未找到商品!");
}
}
} catch (SQLException e) {
MySQL.showError("查询错误", e);
}
}
}
private void editRecord(String type) {
JTable table = tables.get(type);
int row = table.getSelectedRow();
if (row == -1) {
JOptionPane.showMessageDialog(null, "请选择要修改的记录");
return;
}
String id = (String) table.getValueAt(row, 0);
String warehouseId = (String) table.getValueAt(row, 1);
String productId = (String) table.getValueAt(row, 2);
int quantity = (int) table.getValueAt(row, 3);
String date = (String) table.getValueAt(row, 4);
JDialog dialog = new JDialog((Frame) null, "修改记录", true);
dialog.setSize(500, 300);
dialog.setLayout(new GridLayout(5, 2, 10, 10));
dialog.setLocationRelativeTo(null);
JTextField warehouseField = new JTextField(warehouseId);
JTextField productField = new JTextField(productId);
JTextField quantityField = new JTextField(String.valueOf(quantity));
JTextField dateField = new JTextField(date);
JButton submitBtn = new JButton("提交");
submitBtn.addActionListener(e -> {
try {
String newWarehouseId = warehouseField.getText().trim();
String newProductId = productField.getText().trim();
int newQuantity = Integer.parseInt(quantityField.getText().trim());
String newDate = dateField.getText().trim();
// 验证输入
if (newWarehouseId.isEmpty() || newProductId.isEmpty() || newDate.isEmpty()) {
JOptionPane.showMessageDialog(dialog, "所有字段都必须填写!");
return;
}
if (!MySQL.checkForeignKeyExists("仓库", "仓库编号", newWarehouseId)) {
JOptionPane.showMessageDialog(dialog, "仓库ID不存在!");
return;
}
if (!MySQL.checkForeignKeyExists("商品", "商品编号", newProductId)) {
JOptionPane.showMessageDialog(dialog, "商品ID不存在!");
return;
}
if (newQuantity <= 0) {
JOptionPane.showMessageDialog(dialog, "商品数量必须大于0!");
return;
}
boolean isInbound = "入库".equals(type);
// 检查容量/库存
if (isInbound && !checkWarehouseCapacity(newWarehouseId, newQuantity)) {
JOptionPane.showMessageDialog(dialog, "仓库剩余容量不足!");
return;
}
if (!isInbound && !checkProductStock(newProductId, newQuantity)) {
JOptionPane.showMessageDialog(dialog, "商品库存不足!");
return;
}
// 执行SQL
if (MySQL.executeUpdate(
"UPDATE 出入库 SET 仓库ID=?, 商品ID=?, 商品数量=?, 日期=? WHERE 编号=?",
newWarehouseId, newProductId, newQuantity, newDate, id) > 0) {
// 撤销原操作的影响
MySQL.updateWarehouseCapacity(warehouseId, quantity, !isInbound);
MySQL.updateProductStock(productId, quantity, !isInbound);
// 应用新操作的影响
MySQL.updateWarehouseCapacity(newWarehouseId, newQuantity, isInbound);
MySQL.updateProductStock(newProductId, newQuantity, isInbound);
JOptionPane.showMessageDialog(dialog, "记录更新成功!");
dialog.dispose();
refreshData(type);
} else {
JOptionPane.showMessageDialog(dialog, "记录更新失败!");
}
} catch (NumberFormatException ex) {
JOptionPane.showMessageDialog(dialog, "请输入有效的数字!");
}
});
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dialog.dispose());
// 添加组件
dialog.add(new JLabel("仓库ID:"));
dialog.add(warehouseField);
dialog.add(new JLabel("商品ID:"));
dialog.add(productField);
dialog.add(new JLabel("商品数量:"));
dialog.add(quantityField);
dialog.add(new JLabel("日期(YYYY-MM-DD):"));
dialog.add(dateField);
dialog.add(submitBtn);
dialog.add(cancelBtn);
dialog.setVisible(true);
}
private void deleteRecord(String type) {
JTable table = tables.get(type);
int row = table.getSelectedRow();
if (row == -1) {
JOptionPane.showMessageDialog(null, "请选择要删除的记录");
return;
}
String id = (String) table.getValueAt(row, 0);
String warehouseId = (String) table.getValueAt(row, 1);
String productId = (String) table.getValueAt(row, 2);
int quantity = (int) table.getValueAt(row, 3);
int confirm = JOptionPane.showConfirmDialog(
null,
"确定要删除这条记录吗?",
"确认删除",
JOptionPane.YES_NO_OPTION
);
if (confirm == JOptionPane.YES_OPTION) {
if (MySQL.executeUpdate("DELETE FROM 出入库 WHERE 编号=?", id) > 0) {
boolean isInbound = "入库".equals(type);
// 撤销操作的影响
MySQL.updateWarehouseCapacity(warehouseId, quantity, !isInbound);
MySQL.updateProductStock(productId, quantity, !isInbound);
JOptionPane.showMessageDialog(null, "记录删除成功!");
refreshData(type);
} else {
JOptionPane.showMessageDialog(null, "记录删除失败!");
}
}
}
}
// 管理员管理
class AdminManager {
private String currentUser;
public AdminManager(String currentUser) {
this.currentUser = currentUser;
}
public JPanel createPanel() {
JPanel panel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(20, 20, 20, 20);
gbc.gridx = 0;
gbc.gridy = 0;
JLabel titleLabel = new JLabel("用户管理");
titleLabel.setFont(new Font("宋体", Font.BOLD, 24));
panel.add(titleLabel, gbc);
gbc.gridy++;
JButton changePwdBtn = new JButton("修改密码");
changePwdBtn.setPreferredSize(new Dimension(200, 40));
changePwdBtn.addActionListener(e -> changePassword());
panel.add(changePwdBtn, gbc);
return panel;
}
private void changePassword() {
JDialog dialog = new JDialog((Frame) null, "修改密码", true);
dialog.setSize(400, 250);
dialog.setLayout(new GridLayout(4, 2, 10, 10));
dialog.setLocationRelativeTo(null);
JPasswordField oldPwdField = new JPasswordField();
JPasswordField newPwdField = new JPasswordField();
JPasswordField confirmPwdField = new JPasswordField();
JButton submitBtn = new JButton("提交");
submitBtn.addActionListener(e -> {
String oldPwd = new String(oldPwdField.getPassword());
String newPwd = new String(newPwdField.getPassword());
String confirmPwd = new String(confirmPwdField.getPassword());
if (oldPwd.isEmpty() || newPwd.isEmpty() || confirmPwd.isEmpty()) {
JOptionPane.showMessageDialog(dialog, "所有字段都必须填写!");
return;
}
if (!MySQL.validateUser(currentUser, oldPwd)) {
JOptionPane.showMessageDialog(dialog, "旧密码不正确!");
return;
}
if (!newPwd.equals(confirmPwd)) {
JOptionPane.showMessageDialog(dialog, "两次输入的新密码不一致!");
return;
}
if (MySQL.updatePassword(currentUser, newPwd)) {
JOptionPane.showMessageDialog(dialog, "密码修改成功!");
dialog.dispose();
} else {
JOptionPane.showMessageDialog(dialog, "密码更新失败，请联系管理员");
}
});
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dialog.dispose());
dialog.add(new JLabel("旧密码:"));
dialog.add(oldPwdField);
dialog.add(new JLabel("新密码:"));
dialog.add(newPwdField);
dialog.add(new JLabel("确认新密码:"));
dialog.add(confirmPwdField);
dialog.add(submitBtn);
dialog.add(cancelBtn);
dialog.setVisible(true);
}
}详细解释解释每一行
最新发布
本文探讨了使用MSSQL2000官方驱动时，遇到包含Blob或Clob字段的表所产生的错误，并提供了解决方案。介绍了如何通过调整查询顺序或更换第三方驱动来避免错误。
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