5.結束語 聯繫地址:[email protected] 
6.參考資源 
Ø          Jakarta Commons Logging (JCL) User Guide: http://jakarta.apache.org/commons/logging/guide.html  
Ø          Use Log4j:http://www.vipan.com/htdocs/log4jhelp.html(推薦) 
Ø          Short introduction to log4j: http://logging.apache.org/log4j/docs/manual.html 
Ø          日誌設施與通用實現(中文): http://www-900.ibm.com/developerWorks/cn/java/l-common-logging/index.shtml 
Ø          Jakarta所有包下載地址:http://jakarta.apache.org/site/binindex.cgi 
Ø          log4j包載地址:http://apache.linuxforum.net/dist/jakarta/log4j/binaries/jakarta-log4j-1.2.8.zip 
Ø          jcl包下載地址: http://apache.linuxforum.net/dist/jakarta/commons/logging/binaries/commons-logging-1.0.3.zip  
7.參考書目 
²         Expert one-on-one J2EE Design and Development [RodJonhson] 
  
8.名詞解釋: 
- Log4J (version 1.2 or later) from Apache's Jakarta project. Each named Log instance is connected to a corresponding Log4J Logger. 
 - JDK Logging API, included in JDK 1.4 or later systems. Each named Log instance is connected to a corresponding 
java.util.logging.Logger instance. 
 - LogKit from Apache's Avalon project. Each named Log instance is connected to a corresponding LogKit 
Logger. 
 - NoOpLog implementation that simply swallows all log output, for all named Log isntances. 
  SimpleLog implementation that writes all log output, for all named Log instances, to System.err.  
 
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