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in log4j I could specify a class in the properties file to log at the debug level like this:
log4j.logger.com.mycompany.mypackage.ClassName=DEBUG How do I do this in log4j2? Note I still need to use the new property file (not xml or json).
TIA
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You can set a logger's level with the class Configurator from Log4j Core. BUT be aware that the Configurator class is not part of the public API. If you wish to change the root logger level, do something like this : LoggerContext ctx = (LoggerContext) LogManager.
System. setProperty("{my. log", "C:/logfile. log");
To change log levels as a root user, perform the following: To enable debug logging, run the following command: /subsystem=logging/root-logger=ROOT:change-root-log-level(level=DEBUG) To disable debug logging, run the following command: /subsystem=logging/root-logger=ROOT:change-root-log-level(level=INFO)
As the log4j2 configuration documentation states
As of version 2.4, Log4j now supports configuration via properties files. Note that the property syntax is NOT the same as the syntax used in Log4j 1.
It then provides a substantial example for all types of configuration elements.
Concerning your question, you need to specify your loggers in a loggers element, then configure each of them. For example
loggers = mine logger.mine.name = com.mycompany.mypackage.ClassName logger.mine.level = DEBUG Note that log4j2 looks for a .properties file on the classpath by default.
If a test file cannot be located the properties ConfigurationFactory will look for
log4j2.propertieson the classpath.
But you can also configure the location yourself. You can use the system property
-Dlog4j.configurationFile=conf/log4j.properties with an appropriate path.
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