3
3
L
L
o
o
g
g
g
g
i
i
n
n
g
g
I
I
n
n
f
f
o
o
Following
tutorials sho
w how to
use
●
Slf4j with Log
back or
Log4j to
l
o
g events to
Console,
File or Databa
se
●
AOP Annotations
to sepa
rate
l
o
gging from
business
logic