SLF4J usage

Using SLF4J in a java project

SLF4J is the most straightforward logging framework to I’ve used for java apps. I found these instructions from stackify.com pretty useful.

If you have a simple spring boot app, these are all the steps you need to follow:

...
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
...

class SchedulerServiceTest  {
    Logger logger = LoggerFactory.getLogger(SchedulerServiceTest.class);
    
...    

The actual logging lines look like so:

logger.info("testing date and hour {} {}",date,i);

where you can pick methods debug(), info(), warn(), error() depending on your need. You may also use the {} syntax to substitute values from variables.