log4j2 threshold for consoleappender

问题

How to set threshold value for ConsoleAppender in new log4j2 using xml file. Usually we do it in log4j 1.x in the below way.

Ref link: Log4j - priority value and param name concept explanation

How to set it in log4j 2.x ?

回答1:

You can set a log level on the AppenderRef:

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="MyApp" packages="">
  <Appenders>
    <Console name="STDOUT" target="SYSTEM_OUT">
      <PatternLayout pattern="%m%n"/>
    </Console>
    <File name="MyFile" fileName="logs/app.log">
      <PatternLayout>
        <Pattern>%d %p %c{1.} [%t] %m%n</Pattern>
      </PatternLayout>
    </File>
  </Appenders>
  <Loggers>
    <Root level="trace">
      <AppenderRef ref="STDOUT" level="warn"/>
      <AppenderRef ref="MyFile"/>
    </Root>
  </Loggers>
</Configuration>

来源：https://stackoverflow.com/questions/41427352/log4j2-threshold-for-consoleappender