添加获取优惠券条件

src/main/resources/mapper/TbUserCouponsMapper.xml

@@ -26,6 +26,12 @@
     <if test="status != null and status != ''">
       and status = #{status}
     </if>
+
+    <if test="amount != null and amount != ''">
+      and coupons_amount &lt;= #{amount}
+    </if>
+
+
   </select>
   <select id="selectByOrderId" resultType="com.chaozhanggui.system.cashierservice.entity.TbUserCoupons">
     select * from tb_user_coupons where order_id = #{orderId}