feature: 购物车服务添加商品流程新增最大数量限制 (#54)

nageoffer · Apr 20, 2023 · f69669c · f69669c
1 parent eec0761
commit f69669c
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Showing 2 changed files with 13 additions and 3 deletions.
diff --git a/...va/org/opengoofy/congomall/biz/cart/infrastructure/repository/CartItemRepositoryImpl.java b/...va/org/opengoofy/congomall/biz/cart/infrastructure/repository/CartItemRepositoryImpl.java
@@ -24,20 +24,21 @@
 import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
-import lombok.AllArgsConstructor;
+import lombok.RequiredArgsConstructor;
 import lombok.SneakyThrows;
 import org.opengoofy.congomall.biz.cart.domain.aggregate.CartItem;
 import org.opengoofy.congomall.biz.cart.domain.common.SelectFlagEnum;
 import org.opengoofy.congomall.biz.cart.domain.repository.CartItemRepository;
-import org.opengoofy.congomall.biz.cart.infrastructure.dao.mapper.CartItemMapper;
 import org.opengoofy.congomall.biz.cart.infrastructure.dao.entity.CartItemDO;
+import org.opengoofy.congomall.biz.cart.infrastructure.dao.mapper.CartItemMapper;
 import org.opengoofy.congomall.mybatisplus.springboot.starter.PageUtil;
 import org.opengoofy.congomall.springboot.starter.common.toolkit.BeanUtil;
 import org.opengoofy.congomall.springboot.starter.convention.exception.ServiceException;
 import org.opengoofy.congomall.springboot.starter.convention.page.PageRequest;
 import org.opengoofy.congomall.springboot.starter.convention.page.PageResponse;
 import org.redisson.api.RLock;
 import org.redisson.api.RedissonClient;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Repository;
 
 import java.util.List;
@@ -52,14 +53,17 @@
  * @公众号 马丁玩编程，关注回复：资料，领取后端技术专家成长手册
  */
 @Repository
-@AllArgsConstructor
+@RequiredArgsConstructor
 public class CartItemRepositoryImpl implements CartItemRepository {
 
     private final CartItemMapper cartItemMapper;
     private final RedissonClient redissonClient;
 
     private static final String ADD_CART_LOCK_PREFIX = "add-cart-lock_";
 
+    @Value("${congomall.cart.max-product:500}")
+    public Integer maxProductNum;
+
     @Override
     public PageResponse<CartItem> pageQueryCartItem(String userId, PageRequest pageRequest) {
         LambdaQueryWrapper<CartItemDO> queryWrapper = Wrappers.lambdaQuery(CartItemDO.class)
@@ -93,6 +97,10 @@ public void addCartItem(CartItem cartItem) {
         if (!tryLock) {
             throw new ServiceException("添加购物车失败");
         }
+        int countUserCartItem = countUserCartItem(String.valueOf(cartItem.getCustomerUserId()));
+        if (countUserCartItem >= maxProductNum) {
+            throw new ServiceException(String.format("购物车最多添加%d件商品", maxProductNum));
+        }
         try {
             LambdaQueryWrapper<CartItemDO> queryWrapper = Wrappers.lambdaQuery(CartItemDO.class)
                     .eq(CartItemDO::getProductId, cartItem.getProductId())

diff --git a/congomall-cart/congomall-cart-interface/src/main/resources/application.yaml b/congomall-cart/congomall-cart-interface/src/main/resources/application.yaml
@@ -60,6 +60,8 @@ congomall:
     description: Cart Service
     title: Cart Service
     version: 1.0.0
+  cart:
+    max-product: 500
 
 mybatis-plus:
   global-config: