mybatis查询mysql数据库很慢_mybatis执行效率慢。

weixin_39985365

2587人浏览 · 2021-02-01 12:16:24

weixin_39985365 · 2021-02-01 12:16:24 发布

订单

//Controller层.

void testAction(){

int count1 = mapper.queryGoodsByShopIdAndFirstTypeIdCount(map1);//语句1

service1();

}

//Service层

void service1(){

int count1 = mapper.queryGoodsByShopIdAndFirstTypeIdCount(map2);//语句2

int count1 = mapper.queryGoodsByShopIdAndFirstTypeIdCount(map3);//语句3

}

其中语句1，语句2，语句3都是model层的mybatis接口.执行的是相同的sql语句.语句1和语句3耗时都是30ms，语句2耗时达到2000ms多.请问这是怎么回事？？、

为方便，日志文件如下所示：

2014-08-14 18:06:32,062 DEBUG [com.blin360.interceptor.LogInterceptor] -

2014-08-14 18:06:32,062 DEBUG [org.mybatis.spring.SqlSessionUtils] -

2014-08-14 18:06:32,093 DEBUG [org.mybatis.spring.transaction.SpringManagedTransaction] -

2014-08-14 18:06:32,093 DEBUG [com.blin360.mapper.BlGoodsMapper.queryGoodsByShopIdAndFirstTypeIdCount] -

2014-08-14 18:06:32,093 DEBUG [com.blin360.mapper.BlGoodsMapper.queryGoodsByShopIdAndFirstTypeIdCount] - <==> Preparing: select count('id') from bl_business_goods blbusgoods,bl_goods goods,bl_img where blbusgoods.goodId=goods.id AND goods.typeId in(select id from bl_goods_type where type=?) AND blbusgoods.state='0' AND bl_img.goodId=goods.id AND bl_img.type='0' AND blbusgoods.shopId=? >

2014-08-14 18:06:32,093 DEBUG [com.blin360.mapper.BlGoodsMapper.queryGoodsByShopIdAndFirstTypeIdCount] - <==> Parameters: 5(Integer), 1216(Integer)>

2014-08-14 18:06:32,093 DEBUG [org.mybatis.spring.SqlSessionUtils] -

2014-08-14 18:06:32,093 DEBUG [com.blin360.action.BlBusinessShopAction] -

2014-08-14 18:06:32,093 DEBUG [org.mybatis.spring.SqlSessionUtils] -

2014-08-14 18:06:32,093 DEBUG [org.mybatis.spring.transaction.SpringManagedTransaction] -

2014-08-14 18:06:32,093 DEBUG [com.blin360.mapper.BlGoodsMapper.queryGoodsByShopIdAndFirstTypeIdCount] -

2014-08-14 18:06:32,093 DEBUG [com.blin360.mapper.BlGoodsMapper.queryGoodsByShopIdAndFirstTypeIdCount] - <==> Parameters: 5(Integer), 1216(Integer)>

2014-08-14 18:06:34,796 DEBUG [org.mybatis.spring.SqlSessionUtils] -

2014-08-14 18:06:34,796 DEBUG [com.blin360.service.BlGoodsService] -

2014-08-14 18:06:34,796 DEBUG [org.mybatis.spring.SqlSessionUtils] -

2014-08-14 18:06:34,828 DEBUG [com.blin360.mapper.BlGoodsMapper.queryGoodsByShopIdAndFirstTypeIdCount] -

2014-08-14 18:06:34,828 DEBUG [com.blin360.mapper.BlGoodsMapper.queryGoodsByShopIdAndFirstTypeIdCount] - <==> Preparing: select count('id') from bl_business_goods blbusgoods,bl_goods goods,bl_img where blbusgoods.goodId=goods.id AND goods.typeId in(select id from bl_goods_type where type=?) AND blbusgoods.state='0' AND bl_img.goodId=goods.id AND bl_img.type='0' AND blbusgoods.shopId=? >

2014-08-14 18:06:34,828 DEBUG [com.blin360.mapper.BlGoodsMapper.queryGoodsByShopIdAndFirstTypeIdCount] - <==> Parameters: 2(Integer), 1216(Integer)>

2014-08-14 18:06:34,828 DEBUG [org.mybatis.spring.SqlSessionUtils] -

2014-08-14 18:06:34,828 DEBUG [com.blin360.service.BlGoodsService] -

2014年8月14日 18:21

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