Sunday, July 15, 2018

Difference Between Apache Common Logging and Log4J

Dear Folks,

Log4j is a logging framework, i.e. it provides the code to log messages while Commons-logging is an abstraction layer for logging frameworks, it doesn't log anything itself. For example if I write code using commons logging and deploy it on JBoss, the logging is done by log4j, but if I deploy it on WebSphere logging is done by WebSphere's own logging implementation. If I run the same code as a stand alone application it Java's own logging that is used.

Hope this help you in understanding the difference between two. 

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