用户订单列表

src/main/resources/mapper/book/ShopProductDao.xml

@@ -50,7 +50,7 @@
         order by a.sort desc
     </select>
 
-    <select id="getTotalWeight" parameterType="list">
+    <select id="getTotalWeight" parameterType="list" resultType="java.lang.Integer">
         select sum(weight) from shop_product where product_id in
         <foreach collection="list" item="id" index="index" open="(" close=")" separator=",">
             #{id}