A sample of log4j.properties

log4j.properties

#---------------------------------------------------------------------------------------
# Logger
#---------------------------------------------------------------------------------------
# root
log4j.rootLogger=INFO, ROOT

# app log
log4j.logger.app=DEBUG, APP

# access log
log4j.logger.access=DEBUG, ACCESS

#---------------------------------------------------------------------------------------
# Appender
#---------------------------------------------------------------------------------------
# root
log4j.appender.ROOT=org.apache.log4j.ConsoleAppender
log4j.appender.ROOT.layout=org.apache.log4j.PatternLayout
log4j.appender.ROOT.layout.ConversionPattern=%-5p - %m%n

# app
log4j.appender.APP=org.apache.log4j.DailyRollingFileAppender
log4j.appender.APP.File=/path/to/app.log
log4j.appender.APP.Append=true
log4j.appender.APP.encoding=UTF-8
log4j.appender.APP.DatePattern='.'yyyy-MM-dd
log4j.appender.APP.layout=org.apache.log4j.PatternLayout
log4j.appender.APP.layout.ConversionPattern=%d %5p %c - %m%n

# access
log4j.appender.ACCESS=org.apache.log4j.DailyRollingFileAppender
log4j.appender.ACCESS.File=/path/to/request.log
log4j.appender.ACCESS.Append=true
log4j.appender.ACCESS.encoding=UTF-8
log4j.appender.ACCESS.DatePattern='.'yyyy-MM-dd
log4j.appender.ACCESS.layout=org.apache.log4j.PatternLayout
log4j.appender.ACCESS.layout.ConversionPattern=%d %5p %c - %m%n

Sample.java

package sample;

import org.apache.log4j.Logger;

public class Sample
{
  public static void main(String[] args)
  {
    final Logger log = Logger.getLogger("access");
    log.debug("Test");
  }
}