Configuring Logger Default Values with a Properties File
The default values for loggers and handlers can be set using a
properties file. This example demonstrates a sample logging properties
file.
For more information about logging properties,
see the lib/logging.properties file in the JRE directory.
The custom logging properties file is loaded by specifying a
system property on the command line:
# Specify the handlers to create in the root logger
# (all loggers are children of the root logger)
# The following creates two handlers
handlers = java.util.logging.ConsoleHandler, java.util.logging.FileHandler
# Set the default logging level for the root logger
.level = ALL
# Set the default logging level for new ConsoleHandler instances
java.util.logging.ConsoleHandler.level = INFO
# Set the default logging level for new FileHandler instances
java.util.logging.FileHandler.level = ALL
# Set the default formatter for new ConsoleHandler instances
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter
# Set the default logging level for the logger named com.mycompany
com.mycompany.level = ALL
java -Djava.util.logging.config.file=mylogging.properties <class>
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