Are there any major differences between Log4J 1.2 and Log4J 2.0?

Question

I'm curious about the differences between Log4J 1.2 and 2.0, because I've been trying to run a demo I found online ( video here ) and I've run into issues. I was especially curious about what is the role of SLF4J in all of this, i.e do you need a certain SLF4J for 1.2 vs 2.0 ?

thanks!

Answer 1

AFAIU from the Apache Log4j 2 web site, the significant is as the following: -

1. The performance which compare among log4j 1.x, logback and log4j 2.
2. They provide 2 significant components as the following: -
   1. SLF4J Binding: The SLF4J bindings provided in this Bridge cause all the SLF4J APIs to be routed to Log4j 2.
   2. Log4j 2 to SLF4J Adapter: The Log4j 2 to SLF4J Adapter allows applications coded to the Log4j 2 API to be routed to SLF4J.

Then we may use either the SLF4J as a Logging Facade with log4j 2 instead of logback or use the log4j 2 natively.

I hope this information may be useful.