Question

I’m using Log4j in a application in which I also use Axis2 and Jetty web server.

I configured the Log4J property file to exclude these classes from logging when in debug priority. But when I did this, the other priority messages also began to be excluded from the main logger.

Is there a way that I can tell Log4j that I just want to log INFO logs from these classes while logging debug logs from my classes?

Here’s what I have done:

#Jetty Server and Axis2
log4j.category.org.apache.axiom=DEBUG
log4j.additivity.org.apache.axiom=false
log4j.category.org.apache.axis2=DEBUG
log4j.additivity.org.apache.axis2=false

################# MAIN LOGGER #################
log4j.rootCategory=DEBUG, mainLogger

#File configuration

But as I said this configuration also exclude INFO messages from the main logger.

Answer 1

No, set the Root level to DEBUG, and

log4j.category.org.apache.axiom=INFO
log4j.category.org.apache.axis2=INFO

Also, do not set the additivity to false.

When you’re starting from scratch, you might want to use the more modern XML config format right away. There, it would look like this:

<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">

<appender name="FILE" class="org.apache.log4j.RollingFileAppender"> 
...
</appender> 

<category name="com.apache.axiom">
    <priority value="INFO" />
</category>

<root> 
    <priority value ="DEBUG" /> 
    <appender-ref ref="FILE" /> 
</root>

</log4j:configuration>