Solution
if it is application.yml
#mybatis-plus configures the console to print full SQL statements with parameters
mybatis-plus:
configuration:
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
If it is application.properties, add:
#mybatis-plus configures the console to print full SQL statements with parameters
mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl