This project uses springboot + mybatis + logback. In order to print SQL on the console, various configurations have been made in the configuration file. All the methods available on the Internet have been tried, but SQL statements are still not printed.

This is indicated in the configuration file logging.level.cn . homecredit.sams.ddme . reconciliation.model.mapper=debug . still do not print SQL statements.

Another SpringBoot project, as like as two peas, is able to print SQL statements on the console. By comparing the differences between the two projects step by step, it is found that the project can be printed after the histrix package is introduced.

<dependency>
     <groupId>org.springframework.cloud</groupId>
     <artifactId>spring-cloud-starter-hystrix</artifactId>
</dependency>

In the end, I don’t know what the reason is, but after introducing this package, the problem is solved.

Note that this is only one of the possible reasons for this problem. In addition, there are many other problems that may result in the inability to print SQL on the console. You need to configure every step.