title: Servlets: How to log messages from Servlet
body: <p>I have one Servlet class and 3/4 java classes which have many methods. The servlet class creates instance of another java class which calls other class method and so on. I need to log all the activity in all classes. But currently only Servlet class I can log that to with system.out.println in server log. I want to use slf4j but how to include logs of all classes could you suggest. </p>