Log4j - Sample Log4j Properties file

We always face difficulty in configuring the log4j properties quickly without browsing through the internet. I have provided a sample log4j.properties configuration that can be easily tweaked based on your project needs.

Log4j Configuration

#------------------------------------------------------------------------------

#

#  The following properties set the logging levels and log appender.  The

#  log4j.rootCategory variable defines the default log level and one or more

#  appenders.  For the console, use 'C'.  For the daily rolling file, use 'R'.

#  For an HTML formatted log, use 'H'.

#

#  To override the default (rootCategory) log level, define a property of the

#  form (see below for available values):

#

#        log4j.logger. =

#

#    Possible Log Levels:

#      FATAL, ERROR, WARN, INFO, DEBUG

#

#------------------------------------------------------------------------------

log4j.rootCategory=INFO, C

#------------------------------------------------------------------------------

#  TODO: com.mybusiness.blueportal package based on your project.

#  Also we can define the levels for different packages.

#------------------------------------------------------------------------------

log4j.logger.com.mybusiness.blueportal=INFO

log4j.logger.org.w3c.tidy=ERROR

#------------------------------------------------------------------------------

#

#  The following properties configure the console (stdout) appender.

#  See http://logging.apache.org/log4j/docs/api/index.html for details.

#

#------------------------------------------------------------------------------

log4j.appender.C = org.apache.log4j.ConsoleAppender

log4j.appender.C.layout = org.apache.log4j.PatternLayout

log4j.appender.C.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss} %c{1} [%p] %m%n

#------------------------------------------------------------------------------

#

#  The following properties configure the Daily Rolling File appender.

#  See http://logging.apache.org/log4j/docs/api/index.html for details.

#

#  TODO: Change the logs/blueportal.log based on your project need.

#------------------------------------------------------------------------------

log4j.appender.R = org.apache.log4j.DailyRollingFileAppender

log4j.appender.R.File = logs/blueportal.log

log4j.appender.R.Append = true

log4j.appender.R.DatePattern = '.'yyy-MM-dd

log4j.appender.R.layout = org.apache.log4j.PatternLayout

log4j.appender.R.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss} %c{1} [%p] %m%n

#------------------------------------------------------------------------------

#

#  The following properties configure the Rolling File appender in HTML.

#  See http://logging.apache.org/log4j/docs/api/index.html for details.

#

#  TODO: Change the logs/blueportal.html based on your project need.

#------------------------------------------------------------------------------

log4j.appender.H = org.apache.log4j.RollingFileAppender

log4j.appender.H.File = logs/blueportal.html

log4j.appender.H.MaxFileSize = 100KB

log4j.appender.H.Append = false

log4j.appender.H.layout = org.apache.log4j.HTMLLayout