[slf4j-user] Trouble setting up logback/slf4j in tomcat.

[Marten Deinum]

For my current project I would like to switch out all the logging which is
currently being done by log4j and here en there by commons-logging to one
framework. After some searching I discoverd SLF4J and Logback as the successor
to log4j. In your code I swapped out all the log4j and commons-logging to the
SLF4J api and I want to use Logback as my logger. I converted our
log4j.properties file with the configuration converter on the website, so I
assume that is correct.

In the tomcat directory I have the following logging libs (I want tomcat to use
SLF4J to)
commons/lib/commons-logging-1.1.jar
commons/lib/jcl104-over-slf4j-1.1.0-RC1.jar
commons/classes/logback.xml

In our webapplication (which is a packaged war and doesn't get unpacked!) I have
WEB-INF/lib/slf4j-api-1.1.0-RC1.jar
WEB-INF/lib/logback-classic-0.7.jar
WEB-INF/lib/logback-core-0.7.jar
WEB-INF/classes/logback.xml

The contents of the logback.xml in the commons directory just contains a simple
ConsoleAppender and is configured to WARN level.

The file in the WEB-INF directory is configured as a file which should be
written to c:\logs\mylog.log, configured different levels for different packages
we use.

However logback isn't getting picked up, everything is being logged by the
java.util classes (as it appears thatone is being initialized by tomcat instead
of the logback logger).

I tried different configurations, all the logback/slf4j jars in the commons/lib
and one config file in commons/classes. Different jars in commons/lib and
WEB-INF/lib but until now everytime with the same result, only logging to JUL
and nothing to logback and my configured logfile.

Currently I'm at a loss on what to do and how to make it work. I need some
assistance with this.

Kind Regards,
 Marten