更新了商品类别

src/main/java/com/cultural/heritage/controller/good/CartRecordController.java

@@ -30,6 +30,7 @@ import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import java.math.BigDecimal;
 import java.util.List;
 
 @RestController
@@ -68,12 +69,12 @@ public class CartRecordController {
 
 
     /**
-     * 用户更新商品至购物车
+     * 小程序端用户更新购物车中的商品数量
      * @param cartRecordUpdateRequestList   购物车记录列表更新请求体
      * @return  是否更新成功
      */
     @PostMapping("/update")
-    @Operation(summary = "小程序端用户更新商品至购物车", description = "参数：购物车记录更新请求体，权限：所有人，方法名：updateCartRecord")
+    @Operation(summary = "小程序端用户更新购物车中的商品数量", description = "参数：购物车记录更新请求体，权限：所有人，方法名：updateCartRecord")
     public BaseResponse<Boolean> updateCartRecord(@RequestBody List<CartRecordUpdateRequest> cartRecordUpdateRequestList, HttpServletRequest request) {
         if (CollectionUtils.isEmpty(cartRecordUpdateRequestList)) {
             throw new BusinessException(ErrorCode.PARAMS_ERROR);
@@ -81,9 +82,17 @@ public class CartRecordController {
         User loginUser = userService.getLoginUser(request);
         Long userId = loginUser.getId();
         List<CartRecord> cartRecordList = cartRecordUpdateRequestList.stream().map(cartRecordUpdateRequest -> {
+            Long id = cartRecordUpdateRequest.getId();
+            CartRecord cart = cartRecordService.getById(id);
+            ThrowUtils.throwIf(cart == null, ErrorCode.OPERATION_ERROR, "该项商品已被移除");
             CartRecord cartRecord = new CartRecord();
             BeanUtils.copyProperties(cartRecordUpdateRequest, cartRecord);
+            Long goodId = cart.getGoodId();
+            Good good = goodService.getById(goodId);
+            ThrowUtils.throwIf(good == null || good.getIsShelves() == 0, ErrorCode.OPERATION_ERROR, "购物车商品更新失败");
+            cartRecord.setSubtotal(good.getPrice().multiply(BigDecimal.valueOf(cartRecord.getQuantity())));
             cartRecord.setUserId(userId);
+            cartRecord.setGoodId(goodId);
             // 校验
             cartRecordService.validCart(cartRecord, true);
             return cartRecord;
@@ -125,6 +134,9 @@ public class CartRecordController {
         QueryWrapper<CartRecord> queryWrapper = new QueryWrapper<>();
         queryWrapper.eq("userId", userId);
         List<CartRecord> list = cartRecordService.list(queryWrapper);
+        // 校验购物车信息的准确性
+        cartRecordService.validIsConsistent(list);
+        // 封装用户购物车中的商品信息
         List<CartRecordVO> cartRecordVOList = cartRecordService.transformToCartRecordVOList(list);
         return ResultUtils.success(cartRecordVOList);
     }

src/main/java/com/cultural/heritage/controller/user/UserController.java

@@ -118,12 +118,12 @@ public class UserController {
 
 
     /**
-     * 获取当前登录用户
+     * 小程序端(Web端)用户获取登录信息
      * @param request   http
      * @return  用户登录信息
      */
     @GetMapping("/get/login")
-    @Operation(summary = "小程序端用户获取登录信息", description = "参数：无，权限：所有人, 方法名：getLoginUser")
+    @Operation(summary = "小程序端(Web端)用户获取登录信息", description = "参数：无，权限：所有人, 方法名：getLoginUser")
     public BaseResponse<UserVO> getLoginUser(HttpServletRequest request) {
         User user = userService.getLoginUser(request);
         return ResultUtils.success(userService.getUserVO(user));

src/main/java/com/cultural/heritage/model/dto/cart/CartRecordAddRequest.java

@@ -5,10 +5,9 @@ import lombok.Data;
 
 import java.io.Serial;
 import java.io.Serializable;
-import java.math.BigDecimal;
 
 @Data
-@Schema(description = "购物车记录添加请求体", requiredProperties = {"userId", "goodId", "quantity", "subtotal"})
+@Schema(description = "购物车记录添加请求体", requiredProperties = {"goodId", "quantity"})
 public class CartRecordAddRequest implements Serializable {
 
     /**
@@ -23,13 +22,6 @@ public class CartRecordAddRequest implements Serializable {
     @Schema(description = "商品数量(quantity > 0)", example = "3")
     private Integer quantity;
 
-    /**
-     * 小计
-     */
-    @Schema(description = "小计(商品单价 * 数量)", example = "60")
-    private BigDecimal subtotal;
-
-
 
     @Serial
     private static final long serialVersionUID = 1L;

src/main/java/com/cultural/heritage/model/dto/cart/CartRecordUpdateRequest.java

@@ -5,10 +5,9 @@ import lombok.Data;
 
 import java.io.Serial;
 import java.io.Serializable;
-import java.math.BigDecimal;
 
 @Data
-@Schema(description = "购物车记录更新请求体", requiredProperties = {"id", "userId", "goodId", "quantity", "subtotal"})
+@Schema(description = "购物车记录更新请求体", requiredProperties = {"id", "quantity"})
 public class CartRecordUpdateRequest implements Serializable {
 
     /**
@@ -18,23 +17,12 @@ public class CartRecordUpdateRequest implements Serializable {
     private Long id;
 
 
-    /**
-     * 商品id
-     */
-    @Schema(description = "商品id(id > 0)", example = "20")
-    private Long goodId;
-
     /**
      * 数量
      */
     @Schema(description = "商品数量(quantity > 0)", example = "3")
     private Integer quantity;
 
-    /**
-     * 小计
-     */
-    @Schema(description = "小计(商品单价 * 数量)", example = "60")
-    private BigDecimal subtotal;
 
 
     @Serial

src/main/java/com/cultural/heritage/service/good/CartRecordService.java

@@ -26,4 +26,10 @@ public interface CartRecordService extends IService<CartRecord> {
      * 校验购物车中的商品信息
      */
     void validCart(CartRecord cartRecord, boolean update);
+
+
+    /**
+     * 校验购物车信息的准确性
+     */
+    void validIsConsistent(List<CartRecord> list);
 }

src/main/java/com/cultural/heritage/service/good/impl/CartRecordServiceImpl.java

@@ -48,6 +48,8 @@ public class CartRecordServiceImpl extends ServiceImpl<CartRecordMapper, CartRec
         User loginUser = userService.getLoginUser(request);
         Long userId = loginUser.getId();
         Long goodId = cartRecordAddRequest.getGoodId();
+        Good good = goodService.getById(goodId);
+        ThrowUtils.throwIf(good == null || good.getIsShelves() == 0, ErrorCode.OPERATION_ERROR, "商品不存在或者已下架");
         QueryWrapper<CartRecord> queryWrapper = new QueryWrapper<>();
         queryWrapper.eq("userId", userId);
         queryWrapper.eq("goodId", goodId);
@@ -55,7 +57,7 @@ public class CartRecordServiceImpl extends ServiceImpl<CartRecordMapper, CartRec
         if (cartRecord != null) {
             // 如果购物车中已存在该商品, 就叠加数量
             cartRecord.setQuantity(cartRecord.getQuantity() + cartRecordAddRequest.getQuantity());
-            cartRecord.setSubtotal(cartRecord.getSubtotal().add(cartRecordAddRequest.getSubtotal()));
+            cartRecord.setSubtotal(good.getPrice().multiply(BigDecimal.valueOf(cartRecord.getQuantity())));
             boolean result = this.updateById(cartRecord);
             ThrowUtils.throwIf(!result, ErrorCode.OPERATION_ERROR, "更新购物车商品数量失败");
         } else {
@@ -63,6 +65,7 @@ public class CartRecordServiceImpl extends ServiceImpl<CartRecordMapper, CartRec
             CartRecord cartGood = new CartRecord();
             BeanUtils.copyProperties(cartRecordAddRequest, cartGood);
             cartGood.setUserId(userId);
+            cartGood.setSubtotal(good.getPrice().multiply(BigDecimal.valueOf(cartGood.getQuantity())));
             // 校验
             this.validCart(cartGood, false);
             boolean result = this.save(cartGood);
@@ -124,4 +127,22 @@ public class CartRecordServiceImpl extends ServiceImpl<CartRecordMapper, CartRec
             throw new BusinessException(ErrorCode.PARAMS_ERROR, "价格错误");
         }
     }
+
+
+    /**
+     * 校验购物车信息的准确性
+     */
+    @Override
+    public void validIsConsistent(List<CartRecord> list) {
+        for (CartRecord cartRecord : list) {
+            // 校验购物车中的商品是否存在
+            Long goodId = cartRecord.getGoodId();
+            Good good = goodService.getById(goodId);
+            ThrowUtils.throwIf(good == null || good.getIsShelves() == 0, ErrorCode.OPERATION_ERROR, "商品不存在或者已下架");
+
+            // 校验购物车中的商品数量
+            Integer inventory = good.getInventory();
+            Integer quantity = cartRecord.getQuantity();
+        }
+    }
 }