fix: 修复种类属性保存时List无泛型导致MyBatis报错

src/main/java/com/example/building/controller/ProductController.java

@@ -11,7 +11,6 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
-import java.util.Map;
 
 /**
  * 商品控制器
@@ -156,12 +155,12 @@ public class ProductController {
     @PostMapping("/categories/{categoryId}/attributes")
     public Result<Void> saveCategoryAttributes(
             @PathVariable String categoryId,
-            @RequestBody List attributes,
+            @RequestBody List<Map<String, Object>> attrs,
             @RequestHeader(value = "X-User-Role", required = false) String role) {
         if (!"admin".equals(role)) {
             return Result.error("只有管理员可以操作");
         }
-        categoryAttributeService.saveAttributes(categoryId, attributes);
+        categoryAttributeService.saveAttributes(categoryId, attrs);
         return Result.success();
     }
 

src/main/java/com/example/building/service/CategoryAttributeService.java

@@ -2,6 +2,7 @@ package com.example.building.service;
 
 import com.example.building.entity.CategoryAttribute;
 import java.util.List;
+import java.util.Map;
 
 /**
  * 种类属性服务接口
@@ -16,7 +17,7 @@ public interface CategoryAttributeService {
     /**
      * 保存属性
      */
-    void saveAttributes(String categoryId, List<CategoryAttribute> attrs);
+    void saveAttributes(String categoryId, List<Map<String, Object>> attrs);
 
     /**
      * 删除种类的所有属性

src/main/java/com/example/building/service/impl/CategoryAttributeServiceImpl.java

@@ -8,7 +8,9 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 import java.util.UUID;
 
 /**
@@ -29,13 +31,10 @@ public class CategoryAttributeServiceImpl implements CategoryAttributeService {
 
     @Override
     @Transactional
-    public void saveAttributes(String categoryId, List<CategoryAttribute> attrs) {
+    public void saveAttributes(String categoryId, List<Map<String, Object>> attrs) {
         System.out.println("=== saveAttributes called ===");
         System.out.println("categoryId: " + categoryId);
         System.out.println("attrs size: " + (attrs != null ? attrs.size() : 0));
-        if (attrs != null) {
-            attrs.forEach(a -> System.out.println("  attr: " + a.getName() + ", type=" + a.getAttrType() + ", unit=" + a.getUnit()));
-        }
         
         // 删除旧属性
         categoryAttributeMapper.delete(new LambdaQueryWrapper<CategoryAttribute>()
@@ -44,10 +43,29 @@ public class CategoryAttributeServiceImpl implements CategoryAttributeService {
         // 保存新属性
         if (attrs != null && !attrs.isEmpty()) {
             for (int i = 0; i < attrs.size(); i++) {
-                CategoryAttribute attr = attrs.get(i);
+                Map<String, Object> attrMap = attrs.get(i);
+                CategoryAttribute attr = new CategoryAttribute();
                 attr.setAttrId(UUID.randomUUID().toString());
                 attr.setCategoryId(categoryId);
                 attr.setSortOrder(i);
+                
+                if (attrMap.get("name") != null) {
+                    attr.setName(attrMap.get("name").toString());
+                }
+                if (attrMap.get("attrType") != null) {
+                    attr.setAttrType(attrMap.get("attrType").toString());
+                }
+                if (attrMap.get("unit") != null) {
+                    attr.setUnit(attrMap.get("unit").toString());
+                }
+                if (attrMap.get("required") != null) {
+                    attr.setRequired((Boolean) attrMap.get("required"));
+                }
+                if (attrMap.get("formula") != null) {
+                    attr.setFormula(attrMap.get("formula").toString());
+                }
+                
+                System.out.println("  attr: " + attr.getName() + ", type=" + attr.getAttrType() + ", unit=" + attr.getUnit());
                 categoryAttributeMapper.insert(attr);
             }
         }