如何让SpringBoot工程在log/控制台中实时打印MyBatis执行的SQL语句

工程下载：https://files.cnblogs.com/files/xiandedanteng/gatling20200429-4.zip

其实就是一句话设置的事情，实现步骤：

在application.properties中书写

logging.level.com.ufo.gatling.mapper.EmpMapper=debug

这样一行，其中com.ufo.gatling.mapper.EmpMapper为我工程中与DB交互的类

之后执行起来，就能看到SQL输出了，示例如下：

04-29 15:56:53.030 - ==>  Preparing: select b.* from (select a.*,rownum as rn from (select * from hy_emp order by id) a where rownum<101) b where b.rn>90 
2020-04-29 15:56:53.102 - ==> Parameters: 
2020-04-29 15:56:53.135 - <==      Total: 10
2020-04-29 15:56:53.138 - ==>  Preparing: select count(*) from hy_emp 
2020-04-29 15:56:53.138 - ==> Parameters: 
2020-04-29 15:56:53.144 - <==      Total: 1
2020-04-29 15:57:15.018 - ==>  Preparing: select b.* from (select a.*,rownum as rn from (select * from hy_emp order by id) a where rownum<111) b where b.rn>100 
2020-04-29 15:57:15.019 - ==> Parameters: 
2020-04-29 15:57:15.030 - <==      Total: 10
2020-04-29 15:57:15.031 - ==>  Preparing: select count(*) from hy_emp 
2020-04-29 15:57:15.032 - ==> Parameters: 
2020-04-29 15:57:15.036 - <==      Total: 1
2020-04-29 15:57:16.744 - ==>  Preparing: select b.* from (select a.*,rownum as rn from (select * from hy_emp order by id) a where rownum<101) b where b.rn>90 
2020-04-29 15:57:16.744 - ==> Parameters: 
2020-04-29 15:57:16.754 - <==      Total: 10
2020-04-29 15:57:16.755 - ==>  Preparing: select count(*) from hy_emp 
2020-04-29 15:57:16.755 - ==> Parameters: 
2020-04-29 15:57:16.760 - <==      Total: 1

相对于旧版本的SQL与参数分离，当前工程的SQL是一起输出了，这点改进不错。

--2020-04-29--

参考文档：https://www.cnblogs.com/mww-NOTCOPY/p/10990492.html