Logging for application in different environment L

问题:

I am developing a logging framework using Log4j. I am not able to figure out how to maintain separate log files for different environment, i.e., development, testing, staging and production.

回答1:

Firstly you'll need a different copy of your log4j.xml for each environment.

Lets call it log4j-dev.xml, log4j-test.xml, log4j-stage.xml and log4j-prod.xml each having their own settings like log file name and log levels.

You then pass in the corresponding file at the the server startup as a system property like below -

-Dlog4j.configuration=log4j-dev.xml

This URL has the example on how to pass this for Tomcat. The concept is the same for whichever server you are deploying on.

回答2:

On Windows, I have used "set CATALINA_OPTS=-Dlog4j.configurationFile=log4j2-dev.xml" instead of log4j.configuration