How to implement logging functonolity in my java application

Question

Hi.
I want to add logging functionality in my java project.Iam using jdk1.5.I have written following log4j.properties.This property file i need to keep it in com.format.src.property folder .All java files are there in com.format.src folder.
log4j.rootCategory=DEBUG, FILE, CONSOLE
### A bootstrap file appender
log4j.appender.FILE=org.jboss.logging.appender.FileAppender
log4j.appender.FILE.File=${jboss.server.log.dir}/${HOSTSHORTNAME}-${jboss.server.name}-boot.log
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=%d{ABSOLUTE} %-5p [%c{1}] %m%n
log4j.appender.FILE.Append=false
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=INFO
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ABSOLUTE} %-5p [%c{1}] %m%n
Could you reply me the steps to implement logging in my project.
Thanks in advance
alex

Answer 1

1) Put the Apache Commons Logging jar into your "lib" folder.
2) Create your properties file as "log4j.properties"
3) Keep it inside the folder where you have your "src" (ie. ur "src", "classes", & "log4j.properties" should be in the same folder)
4) Import "org.apache.log4j.Logger;"
5) Create an instance of "Logger" as follows;
Logger log = Logger.getLogger(YourClassName.class.getName());
6) Use the created "log" instance when applicable as follows:
log.info("Whatever the message");
log.debug("Whatever the message");
log.error("Whatever the message");
log.fatal("Whatever the message"); ...etc
Hope u got it... Happy coding... :)
Cheers,
Asela.