1.代客下单 会员支付实现

eladmin-system/src/main/java/cn/ysk/cashier/mybatis/mapper/TbMShopUserMapper.java

@@ -5,7 +5,9 @@ import cn.ysk.cashier.mybatis.entity.TbMShopUser;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import org.apache.ibatis.annotations.Param;
 import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
 
+import java.math.BigDecimal;
 import java.util.Map;
 
 /**
@@ -36,6 +38,8 @@ public interface TbMShopUserMapper extends BaseMapper<TbMShopUser> {
             "</script>")
     Map<String, Object> selectUserSummary(@Param("shopId") String shopId, @Param("isVip") Integer isVip);
 
+    @Update("update tb_shop_user set amount=amount-#{orderAmount}, consume_amount=consume_amount+#{orderAmount} where id=#{vipUserId} and amount >= 0")
+    long decrBalance(@Param("vipUserId") Integer vipUserId, @Param("orderAmount") BigDecimal orderAmount);
 }