commons-logging with LOG4J LOGGER

[siva kumar]

how to configure the commons-logging for JOBSS.

I'M HAVINg commons-logging.properties and log4j.properties under WEB-INF\CLASSES.i'm using the RollingFileAppender.but the logging messages are displayed on the console window.
here the two properties file.
//commons-logging.properties
org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger
log4j.configuration=log4j.properties
//log4j.properties

log4j.rootLogger=DEBUG,R
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=c:/logfile.log
log4j.appender.R.MaxFileSize=500kB
log4j.appender.R.MaxBackupIndex=10
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%d{ISO8601} %p %c[%t] - %m%n
log4j.appender.R.append=true