SLF4J+Logback

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SLF4J+Logback

  1. 1. SLF4J + Logback<br />Albert<br />junyuo@gmail.com<br />
  2. 2. Simple Logging Facade for Java (SLF4J)<br />Logback<br />Pre-requistes<br />Configuration example<br />Reference<br />2<br />Agenda<br />
  3. 3. The Simple Logging Facade for Java or (SLF4J) serves as a simple facade or abstraction for various logging frameworks, e.g. java.util.logging, log4j and logback, allowing the end user to plug in the desired logging framework at deployment time.<br />http://www.slf4j.org/<br />Simple Logging Facade for Java (SLF4J)<br />3<br />
  4. 4. 4<br />
  5. 5. Projects depending on SLF4J<br />5<br />
  6. 6. No revolution, only evolution.<br />log4j is no longer being actively developed<br />The same basic plumbing only done better. <br />Faster, smaller, higher gas mileage, and generally more bang for the buck.<br />6<br />LOGBack<br />
  7. 7. Logback offers a native implementation of the SLF4J API => Logback exposes its logging API through SLF4J.<br />If you are using logback, you are actually using SLF4J<br />SLF4J can delegate to log4j, logback, java.util.logging or JCL<br />SLF4J can bridge log4j, JCL and j.u.l.<br />7<br />logback-classic implements SLF4J<br />
  8. 8. logback.xml<br />slf4j-api.jar<br />logback-classic.jar<br />logback-core.jar<br />8<br />Pre-requistes<br />
  9. 9. 9<br />Configuration example<br />
  10. 10. 10<br />Configuration example – cont.<br />ConsoleAppender<br />RollingFileAppender<br /> rollover daily or whenever the <br />file size reaches 100MB<br />
  11. 11. 11<br />Configuration example – cont.<br />
  12. 12. 12<br />Configuration example – cont.<br />ConsoleAppender<br />RollingFileAppender<br />
  13. 13. SLF4J<br />http://www.slf4j.org/<br />Logback<br />http://logback.qos.ch/<br />Chapter 4: Appenders<br />http://logback.qos.ch/manual/appenders.html<br />13<br />Reference<br />
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