Log4j and weblogic workshop server 8.1 ?

Question

Can someone please point out how to setup log4j in weblogic 8.1? I put the log4j.jar file in my server classpath, and in the server startup script I put -Dlog4j.configuration=/path/to/log4.properties in the JAVA_OPTIONS. I can't still get log messages to show in the console. log4j.properties content is:
log4j.rootCategory=DEBUG, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d [%t] %-5p %c{2} %x - %m%n
In my code, I use the org.apache.log4j.Category class to log messages. For example, static Category cat = Category.getInstance(MyClass.class);
cat.debug("a message");
Is there something I'm doing wrong?
Thanks.
gtata

Answer 1

In my setDomainEnv.cmd script which should be located where your workshop domain is installed, I did the following:
# Commented out the following line
@REM set JAVA_PROPERTIES=%JAVA_PROPERTIES% -Dlog4j.configuration=file:%LOG4J_CONFIG_FILE% %CLUSTER_PROPERTIES%
# Set a variable LOG4J_PROPS_FILE to point to the location where my
# log4j properties file is located. NOTE: Full Path required
set LOG4J_PROPS_FILE=/bea/user_projects/domains/workshop/log4j.properties
# Updated my JAVA_PROPERTIES variable to look like the following:
set JAVA_PROPERTIES=%JAVA_PROPERTIES% -Dlog4j.configuration=file:%LOG4J_PROPS_FILE% %CLUSTER_PROPERTIES%
Originally, I had everything setup correctly except for my JAVA_PROPERTIES. Note that the option
-Dlog4j.configuration=file:%LOG4J_PROPS_FILE% %CLUSTER_PROPERTIES% has the word "file:" in it.
What I had that was not working was -Dlog4j.configuration=%LOG4J_PROPS_FILE% %CLUSTER_PROPERTIES%
so I added the file: infront of the LOG4J_PROPS_FILE variable.
Hope this helps.
Gabsaga