完整版

src/main/java/com/example/Home.java

@@ -11,7 +11,7 @@ public class Home extends JFrame implements ActionListener {
 
     JMenuBar menuBar;
     //    库存菜单    进货菜单       销售菜单
-    JButton StockMenu,InventoryMenu,SalesMenu,UserMenu;
+    JButton StockMenu,InventoryMenu,SalesMenu,UserMenu,LogoutMenu;
     private String userIdentity;
     class BackgroundPanel extends JPanel {
         private Image bg;
@@ -37,13 +37,16 @@ public class Home extends JFrame implements ActionListener {
         StockMenu = new JButton("库存信息管理");
         InventoryMenu = new JButton("进货信息管理");
         SalesMenu = new JButton("销售信息管理");
+        LogoutMenu = new JButton("退出登录");
         menuBar.add(StockMenu);
         menuBar.add(InventoryMenu);
         menuBar.add(SalesMenu);
+        menuBar.add(LogoutMenu);
         setJMenuBar(menuBar);
         StockMenu.addActionListener(this);
         InventoryMenu.addActionListener(this);
         SalesMenu.addActionListener(this);
+        LogoutMenu.addActionListener(this);
         Jdbc jdbc = new Jdbc();
         String sql = "select * from user where username='"+username+"'";
         try {
@@ -78,6 +81,10 @@ public class Home extends JFrame implements ActionListener {
         if(e.getSource()==UserMenu){
             new UserManagement();
         }
+        if(e.getSource()==LogoutMenu){
+            new Main();
+            this.dispose();
+        }
     }
     public static void main(String[] args) {
         new Home("admin");

src/main/java/com/example/InventoryProductManagement.java

@@ -259,6 +259,6 @@ public class InventoryProductManagement extends JFrame implements ActionListener
     }
 
     public static void main(String[] args) {
-        SwingUtilities.invokeLater(InventoryProductManagement::new);
+        new InventoryProductManagement();
     }
 }

src/main/java/com/example/Main.java

@@ -46,7 +46,6 @@ public class Main extends JFrame implements ActionListener {
 
     @Override
     public void actionPerformed(ActionEvent e) {
-
         if(e.getSource()==jb1){
             Jdbc jdbc = new Jdbc();
             String sql = "select * from user where username='"+tf1.getText()+"' and password='"+tf2.getText()+"'"; ;

src/main/java/com/example/SalesProductManagement.java

@@ -5,7 +5,6 @@ import javax.swing.event.TableModelEvent;
 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;
 
@@ -29,7 +28,7 @@ public class SalesProductManagement extends JFrame {
 
         JPanel mainPanel = new JPanel(new BorderLayout());
 
-        // 顶部按钮面板 - 新增
+        // 顶部按钮面板
         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");
@@ -92,17 +91,14 @@ public class SalesProductManagement extends JFrame {
         setVisible(true);
     }
 
-    // 新增：统一设置事件监听器
+    // 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) {
@@ -127,7 +123,7 @@ public class SalesProductManagement extends JFrame {
         });
     }
 
-    // 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）
+    // 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();
@@ -206,7 +202,7 @@ public class SalesProductManagement extends JFrame {
         }
     }
 
-    // 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）
+    // 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) {

src/main/java/com/example/StockProductManagement.java

@@ -15,16 +15,15 @@ public class StockProductManagement extends JFrame {
     private DefaultTableModel tableModel;
     private JTextField searchField;
     private JComboBox<String> categoryComboBox;
-    private JButton resetButton; // 新增：重置按钮
+    private JButton resetButton;
 
     public StockProductManagement() {
         super("库存商品信息管理");
 
         setSize(900, 550);
         setLocationRelativeTo(null);
-        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
-        // === 顶部工具面板 ===
+        //顶部工具面板
         JPanel topPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
 
         topPanel.add(new JLabel("搜索商品名称:"));
@@ -36,15 +35,15 @@ public class StockProductManagement extends JFrame {
 
         topPanel.add(new JLabel("筛选类别:"));
         categoryComboBox = new JComboBox<>();
-        categoryComboBox.addItem("全部"); // 初始
+        categoryComboBox.addItem("全部");
         topPanel.add(categoryComboBox);
 
-        resetButton = new JButton("重置"); // 新增
+        resetButton = new JButton("重置");
         topPanel.add(resetButton);
 
         add(topPanel, BorderLayout.NORTH);
 
-        // === 表格 ===
+        // 表格
         String[] columnNames = {"商品照片","商品名称","商品类别","商品数量","进货单价","销售单价","单个利润","销售数量"};
         tableModel = new DefaultTableModel(columnNames, 0){
             @Override
@@ -60,7 +59,7 @@ public class StockProductManagement extends JFrame {
         table = new JTable(tableModel);
         table.setRowHeight(60);
 
-        // 图片渲染器
+        // 图片渲染
         table.getColumnModel().getColumn(0).setCellRenderer(new TableCellRenderer() {
             JLabel label = new JLabel();
             @Override
@@ -94,7 +93,7 @@ public class StockProductManagement extends JFrame {
         JScrollPane scrollPane = new JScrollPane(table);
         add(scrollPane, BorderLayout.CENTER);
 
-        // === 事件绑定 ===
+
         searchButton.addActionListener(ev -> reloadData());
         categoryComboBox.addActionListener(ev -> reloadData());
         resetButton.addActionListener(ev -> {  // 重置功能
@@ -173,6 +172,6 @@ public class StockProductManagement extends JFrame {
     }
 
     public static void main(String[] args){
-        SwingUtilities.invokeLater(StockProductManagement::new);
+        new StockProductManagement();
     }
 }

src/main/java/com/example/UserManagement.java

@@ -103,7 +103,7 @@ public class UserManagement extends JFrame implements ActionListener {
 
                 Jdbc jdbc = new Jdbc();
                 try {
-                    jdbc.update("INSERT INTO user (username,password,email,phone,identity) VALUES ('"
+                    jdbc.update("INSERT INTO user (username,password,identity) VALUES ('"
                             + username + "','" + password + "','user')");
                     jdbc.close();
                     loadData();
@@ -140,7 +140,7 @@ public class UserManagement extends JFrame implements ActionListener {
             }
         }
 
-        // 修改用户（选中一行后弹窗修改）
+        // 修改用户
         else if (e.getSource() == updateItem) {
             int row = table.getSelectedRow();
             if (row == -1) {