后端：商品确认下单的信息 api 接口，后续需要结合促销，完善这个接口。

order/order-service-api/pom.xml

@@ -16,8 +16,13 @@
             <groupId>cn.iocoder.mall</groupId>
             <artifactId>common-framework</artifactId>
             <version>1.0-SNAPSHOT</version>
-            <scope>compile</scope>
         </dependency>
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>product-service-api</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
         <dependency>
             <groupId>javax.validation</groupId>
             <artifactId>validation-api</artifactId>
@@ -34,5 +39,6 @@
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
         </dependency>
+
     </dependencies>
-</project>
+</project>

order/order-service-api/src/main/java/cn/iocoder/mall/order/api/CartService.java

@@ -1,9 +1,11 @@
 package cn.iocoder.mall.order.api;
 
 import cn.iocoder.common.framework.vo.CommonResult;
+import cn.iocoder.mall.order.api.bo.CalcOrderPriceBO;
 import cn.iocoder.mall.order.api.bo.CartBO;
 import cn.iocoder.mall.order.api.bo.CartItemBO;
 import cn.iocoder.mall.order.api.bo.OrderCreateBO;
+import cn.iocoder.mall.order.api.dto.CalcOrderPriceDTO;
 import org.springframework.lang.Nullable;
 
 import java.util.List;
@@ -78,6 +80,14 @@ public interface CartService {
 
     // ========== 购物车与订单相关的逻辑 ==========
 
+    /**
+     * 计算订单金额，返回计算结果
+     *
+     * @param calcOrderPriceDTO 计算订单金额 DTO
+     * @return 计算订单金额结果
+     */
+    CommonResult<CalcOrderPriceBO> calcOrderPrice(CalcOrderPriceDTO calcOrderPriceDTO);
+
     /**
      * 获得购物车明细
      *

order/order-service-api/src/main/java/cn/iocoder/mall/order/api/OrderService.java

@@ -38,14 +38,6 @@ public interface OrderService {
      */
     CommonResult<OrderRecipientBO> getOrderRecipientBO(Integer orderId);
 
-    /**
-     * 计算订单金额，返回计算结果
-     *
-     * @param calcOrderPriceDTO 计算订单金额 DTO
-     * @return 计算订单金额结果
-     */
-    CalcOrderPriceBO calcOrderPrice(CalcOrderPriceDTO calcOrderPriceDTO);
-
     /**
      * 订单 - 创建
      *

order/order-service-api/src/main/java/cn/iocoder/mall/order/api/bo/CalcOrderPriceBO.java

@@ -1,5 +1,6 @@
 package cn.iocoder.mall.order.api.bo;
 
+import cn.iocoder.mall.product.api.bo.ProductSkuDetailBO;
 import lombok.Data;
 import lombok.experimental.Accessors;
 
@@ -45,10 +46,16 @@ public class CalcOrderPriceBO {
 
     @Data
     @Accessors(chain = true)
-    public static class Item {
-
-        // TODO 信息要相当完整
+    public static class Item extends ProductSkuDetailBO { // TODO 芋艿，此处先偷懒继承
 
+        /**
+         * 是否选中
+         */
+        private Boolean selected;
+        /**
+         * 购买数量
+         */
+        private Integer buyQuantity;
 
     }
 
@@ -80,6 +87,15 @@ public class CalcOrderPriceBO {
          */
         private Integer presentTotal;
 
+        public Fee() {
+        }
+
+        public Fee(Integer originalTotal, Integer discountTotal, Integer postageTotal, Integer presentTotal) {
+            this.originalTotal = originalTotal;
+            this.discountTotal = discountTotal;
+            this.postageTotal = postageTotal;
+            this.presentTotal = presentTotal;
+        }
     }
 
     /**

order/order-service-api/src/main/java/cn/iocoder/mall/order/api/constant/OrderErrorCodeEnum.java

@@ -25,7 +25,7 @@ public enum OrderErrorCodeEnum {
 
     // order item
     ORDER_ITEM_ONLY_ONE(1008000004, "订单Item只有一个!"),
-
+    ORDER_ITEM_SOME_NOT_EXISTS(-1, "有不存在的商品"), // TODO 芋艿 后面改下错误码
 
     ;
 

order/order-service-api/src/main/java/cn/iocoder/mall/order/api/dto/CalcOrderPriceDTO.java

@@ -15,11 +15,11 @@ public class CalcOrderPriceDTO {
     /**
      * 商品数组
      */
-    private List<Integer> items;
+    private List<Item> items;
 
     @Data
     @Accessors(chain = true)
-    private static class Item {
+    public static class Item {
 
         /**
          * SKU 编号
@@ -36,6 +36,14 @@ public class CalcOrderPriceDTO {
          */
         private Boolean selected;
 
+        public Item() {
+        }
+
+        public Item(Integer skuId, Integer quantity, Boolean selected) {
+            this.skuId = skuId;
+            this.quantity = quantity;
+            this.selected = selected;
+        }
     }
 
 }