一、控制檯輸出執行SQL語句
springboot+mybatis整合過程中,開啓控制檯sql語句打印的多種方式:
方法一:
1.在mybatis的配置文件中添加:
<settings>
<!-- 打印sql日誌 -->
<setting name="logImpl" value="STDOUT_LOGGING" />
</settings>
mybatis的配置文件----mybatis-config.xml如下:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<!-- 打印sql日誌 -->
<setting name="logImpl" value="STDOUT_LOGGING" />
</settings>
</configuration>
2.在springboot的配置文件----appcation.yml中添加:
mybatis:
configuration:
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
ps:
IDEA中,springboot默認配置文件是application.properties文件,但是yml文件在語法上更加簡潔,更有層次感,所以此處是用yml語法,properties中好像是這麼寫的:mybatis.configuration.log-impl= org.apache.ibatis.logging.stdout.StdOutImpl
控制檯可以打印了。。。。。
方法二:
在springboot+mybatis整合中,可以將springboot的配置文件添加如下一段也可:
logging:
level:
com.lucifer.springboot.cache.mapper: debug
ps: com.lucifer.springboot.cache.mapper是包名
方法三:
如果你使用的是springboot+mybatis-plus的話:
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.3.1</version>
</dependency>
application.yml:
mybatis-plus:
configuration:
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
控制檯打印:
Creating a new SqlSession
SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@7b1c1a91] was not registered for synchronization because synchronization is not active
JDBC Connection [HikariProxyConnection@401482894 wrapping com.mysql.cj.jdbc.ConnectionImpl@45667d98] will not be managed by Spring
==> Preparing: select cron from cron_table where cron_type = ?
==> Parameters: springboot_timedtask_2(String)
<== Columns: cron
<== Row: 0/5 * * * * ?
<== Total: 1
Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@7b1c1a91]