Log4J2 - assigning file appender filename at runtime

Question

I have a log4j2.xml config file in the class path. One of the appenders is a File appender, and I would like to set the target file name at run time in the Java application

Answer 1

What you can do is, when running the application, pass logFilename as an argument to the JVM:

java -DlogFilename=myAppName.log -jar /path/to/myApp.jar