What is the slf4j
1. Define
- The Simple Logging Facade for Java (SLF4J) serves as a simple facade or abstraction for various logging framework(java.util.logging, logback, log4j..) allowing the end user to plug in the desired logging framework at deployment time
2. Install
- http://www.slf4j.org/download.html
- slf4j-api-1.7.21
3. Hello world
3_1. Warning
- The warning is printed because no slf4j binding could be found on your class path
- The warning will disappear as soon as you add a binding to your class path. Assuming you add slf4j-simple-1.7.21.jar so that your class path contains
4. Typical usage pattern
5. Binding with a logging framework at deployment time
- SLF4J supports various logging frameworks. The SLF4J distribution ships with several jar files referred to as 'SLF4J binding', with each binding corresponding to a supported framework
5_1. To switch logging frameworks
Just replace slf4j bindings on your class path.
* For example
To switch from java.util.logging to log4j, just replace slfj-jdk14-1.7.21 jar with slf-j4-log4j12-1.7.21.jar
리딩리드