# An example log4j configuration file that outputs both to System.out # and a file named 'test'. # For the general syntax of property based configuration files see the # documenation of org.apache.log4j.PropertyConfigurator. # WARNING: Location information can be useful but is very costly in # terms of computation. # The root logger uses the appender called A1. # The root logger uses the appenders called A1 and A2. Since no level # is specified, note the empty string between the comma (",") and the # equals sign ("="), the level of the root logger remains # untouched. Log4j always initializes the level for the root logger to # DEBUG. The root logger is the only logger that has a default # level. Bu default, all other loggers do not have an assigned level, # such that they inherit their level instead. log4j.rootLogger=, A1, A2 # A1 is set to be ConsoleAppender sending its output to System.out log4j.appender.A1=org.apache.log4j.ConsoleAppender # A1 uses PatternLayout. log4j.appender.A1.layout=org.apache.log4j.PatternLayout # The conversion pattern consists of date in ISO8601 format, level, # thread name, logger name truncated to its rightmost two components # and left justified to 17 characters, location information consisting # of file name (padded to 13 characters) and line number, nested # diagnostic context, the and the application supplied message log4j.appender.A1.layout.ConversionPattern=%d %-5p [%t] %-17c{2} (%13F:%L) %3x - %m%n # Appender A2 writes to the file "test". log4j.appender.A2=org.apache.log4j.FileAppender log4j.appender.A2.File=test # Truncate 'test' if it aleady exists. log4j.appender.A2.Append=false # Appender A2 uses the PatternLayout. log4j.appender.A2.layout=org.apache.log4j.PatternLayout log4j.appender.A2.layout.ConversionPattern=%-5r %-5p [%t] %c{2} - %m%n # In this example, we are not interested in INNER loop or SWAP # messages. You might try to set INNER and SWAP to DEBUG for more # verbose output. log4j.logger.org.apache.log4j.examples.SortAlgo.INNER=INFO log4j.logger.org.apache.log4j.examples.SortAlgo.SWAP=INFO