JDK1.4 Logging - Tomcat

Question

Hi,
I am developing a web application where i need to load properties setting in the JDK1.4 Logging configuration file.
My application run on Tomcat.
In a nomal application, the location of the properties file can be specify in the java commmand line as follow:
java -Djava.util.logging.config.file=C:\j2sdk1.4.2_01\Project\config\logger.properties MainClass
My question is :
How do i specify in the Tomcat when i start the tomcat?
Do i specify in the xml file?
Or there is another way?
THank you very much.

Answer 1

btw: Obviously you need to put each properties file in
the relevant dir and not in a shared dir.Tomcat uses log4j internally right?I think by default the Commons Logging API is available in a standard installation of Tomcat 5 but log4j is not. So no, not necessarily.
And if two different 'apps' use the same class, then to provide
differentiation via 'app' then the log4j must be using the
class loader to differentiate property files.If you want to use log4j across all your applications then you put the log4j.jar into the $TOMCAT_HOME/common/lib dir, and the log4j properties file in $TOMCAT_HOME/common/classes/log4j.properties. If you want to use log4j only for a specific application you put these files in the WAR.
So any idea how one accesses that functionality in ones own application?Yes, see above.
And what happens if someone wants all the 'apps' to go to the same file? How does one turn that on and off?Again, see above.
HTH