参加活动 满足金额

src/main/resources/mapper/TbActivateMapper.xml

@@ -41,8 +41,8 @@
 
         from tb_activate
         where shop_id = #{shopId}
-        and amount = #{amount}
+        and amount <= #{amount}
-        order by id desc
+        order by amount desc
         limit 1
     </select>