slf4j与log4j、log4j2

https://blog.csdn.net/yangzl2008/article/details/81503579

https://blog.csdn.net/HarderXin/article/details/80422903

 http://ifeve.com/slf4j-lega-api/

Log4j 2 + Slf4j 的配置和使用

https://blog.csdn.net/xiao__jia__jia/article/details/90450766