I am using apache commons + log4j for my web app.
normally log4j needs a configuration file inside the classpath; but I need to delegate the logging configuration to an external file (I need to deploy a .war in an environment, but the log configurations (max size, position, etc) it's up to a second team.
I have a commons-logging.properties in my classpath
org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger
# log4j.configuration=/absolute/path/where/external/logs/are/log4j.properties
unfortunately, the commented line doesn't work.
Is there a way to set up log4j with an external configuration file?
You can use a jvm parameter indicating the configuration file path:
example with an absolute path: