通过外部库log4j.xml覆盖log4j.xml配置

Question

Since I added a external jar file to my project, the log4j configuration is being picked up from the log4j.xml which is inside the external jar file. The log4j.xml configuration within my application is not getting applied.

Is there a way to override the log4j.xml configuration so that my applications log4j.xml gets picked?

EAR Structure :

\\lib\\externalJar\\log4j.xml

\\appweb.war\\WEB-INF\\classes\\log4j.xml

I can see the warning in the log file as : log4j:WARN No appenders could be found for logger.

Thanks in advance

Answer 1

If you bundle the the required log4j jar file into your webapp's WEB-INF/lib directory, then the webapps's classloader will load the log4j classes, and you can use your own configuration. This will be separate from the instance of log4j loaded by the ear classloader, and used by the external jar you added.