I was reviewing code, and I see all the LOG class
is to login?
@Component
class ApplicationEventListener {
@SuppressWarnings("unused")
private static Logger LOG = LoggerFactory.getLogger(ApplicationEventListener.class);
and invokes the same class.
I'm using Spring
No, the Logger class belongs to slf4j ( link ), an api used to implement different trace creation systems in the applications.
This type of system allows the programmer to know the status of the execution of a program without the need to debug, as they write lines in a text file or in the console where the application is executed every time that a program is invoked. those lines you're talking about
It is one of the fundamental pillars in the maintenance of the application. Do not stop reading ( link ) log4j or ( link ) apache commons log; two of the best known trace generation systems.
No, that class is to show log messages, in order to control errors in the application.
A fairly simple use, and following the statement that you put, could be:
LOG.debug("Esto es un mensaje de debug");
Greetings.