Can't avoid hibernate logging SQL to console w

问题:

My Spring Boot application keeps showing Hibernate queries in the console despite having configured Hibernate's specific logging with Logback as follows:

<appender name="HIBERNATE" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>${LOGDIR}/hibernate.log</file>
    <encoder>
        <pattern>%d{yyyy-MM-dd HH:mm:ss} - %msg%n</pattern>
    </encoder>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <fileNamePattern>${LOGDIR}/hibernate.log.%d</fileNamePattern>
    </rollingPolicy>
</appender>

<logger name="org.hibernate" additivity="false">
    <appender-ref ref="HIBERNATE"/>
</logger>

<logger name="org.hibernate.SQL" additivity="false">
    <appender-ref ref="HIBERNATE"/>
</logger>

<logger name="org.hibernate.type.descriptor.sql" additivity="false">
    <appender-ref ref="HIBERNATE"/>
</logger>

It does send Hibernate's logs, including queries, to the file hibernate.log. But I would also like to avoid the queries in the console, which I think should be happening with this configuration.

What am I missing?

回答1:

If you set the hibernate.show_sql to true, Hibernate will simply print the SQL statement to the console (not to be confused with logging under org.hibernate.SQL). SqlStatementLogger is responsible for logging the SQL statements and its logStatement looks like:

public void logStatement(String statement, Formatter formatter) {
    if ( format ) {
        if ( logToStdout || LOG.isDebugEnabled() ) {
            statement = formatter.format( statement );
        }
    }
    LOG.debug( statement );
    if ( logToStdout ) {
        System.out.println( "Hibernate: " + statement );
    }
}

So, if you do not want to see the queries on the console, just disable the hibernate.show_sql by setting it to false or just removing it altogether. In Spring Boot, just add this to your application.properties:

spring.jpa.show-sql=false

回答2:

I just wanted to share that I just noticed there is another setting which could cause org.hibernate.SQL to debug in Spring Boot JUnit tests, though you might have set

spring.jpa.show-sql=false 

and

spring.jpa.properties.hibernate.show_sql=false

...

If you set

debug=true

in your Spring application*.properties file!

This one set to true will override the show-sql setting and set it to true.

Brgds

回答3:

You basically need to set 2 properties to false.

If you are using Spring boot , then set up in Application.properties as below

spring.jpa.properties.hibernate.generate_statistics=false
spring.jpa.properties.hibernate.show_sql=false

And If you are using hibernate.cfg.xml, then set up as below

<property name="hibernate.generate_statistics">false</property>
<property name="show_sql">false</property>