log4j rootlogger turn off logger for some classes

Question

how can i configure a log4j.properties with a rootlogger = debug, stdout, logfile
and org.apache.httpclient = debug which goes into the logfile but not the stdout?

raising the rootlogger to info is not acceptable as i have others package at the debug level.

Answer 1

In the log4j.properties file, add the line

log4j.logger.org.apache.httpclient=DEBUG, logfile

to direct the org.apache.httpclient logger output to the logfile appender.

Also include the line

log4j.additivity.org.apache.httpclient=false

to prevent the org.apache.httpclient logger output going to the rootLogger's appenders.

Answer 2

Your could achieve this functionality by using filters on the different appenders. I think the LevelRangeFilter would be what you are looking for.

However I think filters can only be specified if your are using an xml file for configuration and are not supported when using a .properties file.