Rajas Rajas - 4 months ago 55
Java Question

Apache Log4j2 package specific logging using log4j2.xml

I am using log4j2. But the problem that I am facing is that it logs all logs. I want to ... log from specific package to a specific file & other package to another file. I am using log4j2.xml for configuration.
Please can someone help?


log4j2.xml


<?xml version="1.0" encoding="UTF-8"?>




<Loggers>
<Root level="DEBUG" additivity="false">
<AppenderRef level="DEBUG" ref="CONSOLE" />
<AppenderRef level="DEBUG" ref="fileAppender" />
</Root>
<Logger name="com.pkg.test.logging.method" level="DEBUG"
additivity="false">
<Appender-ref ref="fileAppender" level="DEBUG" />
</Logger>

</Loggers>

<Appenders>

<Console name="CONSOLE" target="SYSTEM_OUT">
<PatternLayout
pattern="%highlight{[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} %c{1}: %L - %msg%n%throwable}" />
</Console>

<RollingFile name="fileAppender" fileName="./log.log"
filePattern="./log-%d{yyyy-MM-dd}.log">
<PatternLayout
pattern="%highlight{[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} %c{1}: %L - %msg%n}" />
<Policies>
<TimeBasedTriggeringPolicy interval="1"
modulate="true" />
</Policies>
</RollingFile>
</Appenders>



Answer

From Log4J Manual:

Adding a specific logger for a class: (you can refer to packages here too)

<Logger name="org.apache.logging.log4j.test2" level="debug" additivity="false">
  <AppenderRef ref="File"/>
</Logger>

Adding a specific appender:

<Appender type="File" name="File" fileName="${filename}">
  <Layout type="PatternLayout">
    <Pattern>%d %p %C{1.} [%t] %m%n</Pattern>
  </Layout>
</Appender>
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