[slf4j-user] How to use slf4j to consolidate JUL and log4j output?

John Lussmyer john at teamunify.com
Wed Dec 4 02:27:15 CET 2013


We have a large existing app that has several HttpServlets. These are
currently written using log4j logging - except a few of the libs that were
written with Java.util.logging uses.

I'd REALLY REALLY like to get them all going through the log4j handling and
output formatting.

It looks like I should be able to use slf4j to do this - but I can't find
any actual documentation on HOW. Just lots of "yeah, it can do things like
that". I've added slf4j-api.jar, slf4j-log4j12.jar and jul-to=slf4j.jar to
my class path.

Since this doesn't seem to be handling the JUL logging (still coming out in
it's own format), there must be something specific that needs to be done to
get things hooked up/started - but I haven't been able to find the docs on
exactly WHAT is needed.
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