I solved this problem.
It was not the problem of tomcat.
I just added the following lines into log4j.properties
# Remove org.apache.* logs
log4j.logger.org.apache=WARN
It was because of struts and Digester which is used by struts.
So I change the log level of org.apache.*.
2005/8/3, KwonNam
I installed a web context to Tomcat 5.0.28 ant the struts 1.2.7 web
application context includes log4j-1.2.11.jar in WEB-INF/lib and
log4j.properties in WEB-INF/classes.
After that, Tomcat shows all it's log messages(include DEBUG) in log4j
format which is configured in
