计算一笔订单所购商品数量

ruoyi-mall/src/main/java/com/cyl/manager/oms/pojo/request/ManagerOrderQueryRequest.java

@@ -15,7 +15,7 @@ public class ManagerOrderQueryRequest {
     private Long orderId;
 
     @ApiModelProperty(name = "orderSn", value = "订单编号", required = true, dataType = "String")
-    private Long orderSn;
+    private String orderSn;
 
 
     @ApiModelProperty(name = "productId", value = "商品id", required = true, dataType = "Long")

ruoyi-mall/src/main/java/com/cyl/manager/oms/service/OrderService.java

@@ -173,6 +173,7 @@ public class OrderService {
                 .stream().collect(Collectors.groupingBy(OrderItem::getOrderId));
         groupedOrderItemMap.keySet().forEach(key -> {
             ManagerOrderVO managerOrderVO = orderMap.get(key);
+            managerOrderVO.setBuyNum(0);
             List<OrderItem> orderItemList = groupedOrderItemMap.get(key);
             List<ManagerOrderProductVO> addProductList = new ArrayList<>();
             orderItemList.forEach(item -> {
@@ -184,6 +185,7 @@ public class OrderService {
                 vo.setProductId(item.getProductId());
                 vo.setSpData(item.getSpData());
                 addProductList.add(vo);
+                managerOrderVO.setBuyNum(managerOrderVO.getBuyNum() + item.getQuantity());
             });
             managerOrderVO.setProductList(addProductList);
         });

ruoyi-mall/src/main/resources/mapper/oms/OrderMapper.xml

@@ -112,7 +112,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 --         left join oms_order_item b on a.id = b.order_id
         left join ums_member c on a.member_id = c.id
         where a.aftersale_status = 1
-        <if test="orderSn != null">
+        <if test="orderSn != null and orderSn != ''">
             and a.order_sn = #{orderSn}
         </if>
         <!--<if test="productName != null and productName != ''">-->