example.properties

log4j的源码

# For the general syntax of property based configuration files see the
# documenation of org.apache.log4j.PropertyConfigurator.

# The root category uses two appenders called A1 and R. Since no priority is
# specified, the root category assumes the default priority for root
# which is DEBUG in log4j. The root category is the only category that
# has a default priority. All other categories need not be assigned a
# priority in which case they inherit their priority from the
# hierarchy.

log4j.rootCategory=, A1, R

# A1 is set to be a LF5Appender which outputs to a swing
# logging console.   
  
log4j.appender.A1=org.apache.log4j.lf5.LF5Appender

# R is the RollingFileAppender that outputs to a rolling log 
# file called rolling_log_file.log.

log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=rolling_log_file.log

# Define a pattern layout for the file.  
# For more information on conversion characters (i.e. d,p,t,c,l,m,n)
# please see the PatternLayout class of the Log4j API.

log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=[slf5s.start]%d{DATE}[slf5s.DATE]%n%p[slf5s.PRIORITY]%n%x[slf5s.NDC]%n%t[slf5s.THREAD]%n%c[slf5s.CATEGORY]%n%l[slf5s.LOCATION]%n%m[slf5s.MESSAGE]%n%n

# Set the max size of the file and the number of backup files

log4j.appender.R.MaxFileSize=100KB
log4j.appender.R.MaxBackupIndex=1