How can I change the default location of log4j2.xml in Java Spring Boot?

Question

Log4j2 is working nicely with Spring Boot through the log4j2.xml configuration file in the root classpath, exactly as the documentation states.

When try

Answer 1

In case of property file:

java -Dlog4j.configuration=file:/path/to/log4j.properties -jar app.jar

To the command line works in Spring Boot 2. Don't forget to add file: before the path.