Log4j and appenders

[David Edds]

Hi,

I'm VERY new to Logging and am using Log4j with JDK 1.3. I would like to send any log messages which are DEBUG or higher to a file and any messages which are ERROR or higher to the console. I have achieved this in my properties file (below) which uses the "threshold" property. Is this the correct / best way to achieve what I want? Shouldn't I be using "appender additivity" and have my a2 as some sub-appender of a1? If so, how do I modify my properties file to achieve this?

Thanks in advance,
Dave

log4j.rootLogger=DEBUG, a1, a2
 
log4j.appender.a2=org.apache.log4j.ConsoleAppender
log4j.appender.a2.layout=org.apache.log4j.SimpleLayout
# Set the Threshold to ERROR, so only error messages (or higher)
# are sent to the console
log4j.appender.a2.Threshold=ERROR
 
log4j.appender.a1=org.apache.log4j.FileAppender
log4j.appender.a1.File=/fileappender.log
log4j.appender.a1.Append=false