ha

src/Main.java

@@ -210,6 +210,9 @@ public class Main extends Application {
                     case "库存报表":
                         showInventoryReportView();
                         break;
+                    case "分类管理":
+                        showCategoryManagementView();
+                        break;
                     default:
                         // 其他菜单项的处理逻辑
                         break;
@@ -241,6 +244,10 @@ public class Main extends Application {
         GoodsManagementView goodsManagementView = new GoodsManagementView();
         contentArea.setCenter(goodsManagementView);
     }
+    private void showCategoryManagementView() {
+        CategoryManagementView categoryManagementView = new CategoryManagementView();
+        contentArea.setCenter(categoryManagementView);
+    }
     public static void main(String[] args) {
         launch(args);
     }

src/view/CategoryManagementView.java

@@ -0,0 +1,56 @@
+package view;
+
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import javafx.scene.control.TreeItem;
+import javafx.scene.control.TreeView;
+import javafx.scene.layout.AnchorPane;
+import model.DataManager;
+import model.Goods;
+
+public class CategoryManagementView extends AnchorPane {
+
+    private TreeView<String> categoryTreeView;
+
+    public CategoryManagementView() {
+        initializeComponents();
+        loadCategoriesAndGoods();
+    }
+
+    private void initializeComponents() {
+        categoryTreeView = new TreeView<>();
+        categoryTreeView.setShowRoot(false); // 不显示根节点
+        AnchorPane.setTopAnchor(categoryTreeView, 10.0);
+        AnchorPane.setRightAnchor(categoryTreeView, 10.0);
+        AnchorPane.setBottomAnchor(categoryTreeView, 10.0);
+        AnchorPane.setLeftAnchor(categoryTreeView, 10.0);
+        this.getChildren().add(categoryTreeView);
+    }
+
+    private void loadCategoriesAndGoods() {
+        DataManager dataManager = DataManager.getInstance();
+        ObservableList<Goods> allGoods = FXCollections.observableArrayList(dataManager.getAllGoods());
+
+        // 获取所有分类
+        ObservableList<String> categories = FXCollections.observableArrayList(allGoods.stream()
+                .map(Goods::getCategory)
+                .distinct()
+                .toArray(String[]::new));
+
+        // 构建树结构
+        TreeItem<String> root = new TreeItem<>();
+        for (String category : categories) {
+            TreeItem<String> categoryItem = new TreeItem<>(category);
+            for (Goods goods : allGoods) {
+                if (goods.getCategory().equals(category)) {
+                    TreeItem<String> goodsItem = new TreeItem<>(goods.getName() + " (" + goods.getSpecification() + ")");
+                    categoryItem.getChildren().add(goodsItem);
+                }
+            }
+            root.getChildren().add(categoryItem);
+        }
+
+        categoryTreeView.setRoot(root);
+    }
+
+}