how to change the log4j log file dynamically?

Question

I want to have a log4j configuration such that the log file name should have like ${System-name}log.log. that is if the application is launched on any system then without ch

Answer 1

I do it this way:
1) init logger by:

System.setProperty("my.logsDir", vcsLogsDir);
DOMConfigurator.configure("c:/log4j.xml");

2) in log4j.xml i use variable:

d