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how to configure logback for Mybatis to print my SQL

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <Pattern>%d{HH:mm:ss} %-5level %logger{35} - %msg%n
            </Pattern>
        </encoder>
    </appender>
    <logger name="java.sql" level="DEBUG" >
        <appender-ref ref="STDOUT" />
    </logger>
    <root>
        <level value="ERROR" />
        <appender-ref ref="STDOUT" />
    </root>
</configuration>

I want print sql and error only,but it does not print SQL in Console,can any one help me? thanks lot

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by (71.8m points)

You configuration of appender is correct but logger configuration is not.

To log SQL statements for particular mybatis mapper set DEBUG (TRACE to see query parameters and results) level for logger with fully qualified mapper name

<logger name="com.mycompany.myapp.mapper.MyMapper" level="DEBUG"/>

You can log all SQL statements from all mappers if they are in the same package like this

<logger name="com.mycompany.myapp.mapper" level="DEBUG"/>

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