log4j2-core/src/test/resources/log4j-test1.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration packages="" status="debug" name="XMLConfigTest">
  <properties>
    <property name="filename">target/test.log</property>
  </properties>
  <filters>
    <Threshold level="debug"/>
  </filters>

  <appenders>
    <Console name="STDOUT">
      <PatternLayout pattern="%m%n"/>
    </Console>
    <File name="File" fileName="${filename}" bufferedIO="false">
      <PatternLayout>
        <pattern>%d %p %C{1.} [%t] %m%n</pattern>
      </PatternLayout>
    </File>
    <List name="List">
      <filters>
        <Threshold level="error"/>
      </filters>
    </List>
  </appenders>

  <loggers>
    <logger name="org.apache.logging.log4j.test1" level="debug" additivity="false">
      <filters>
        <ThreadContextMap>
          <KeyValuePair key="test" value="123"/>
        </ThreadContextMap>
      </filters>
      <appender-ref ref="STDOUT"/>
    </logger>>

    <logger name="org.apache.logging.log4j.test2" level="debug" additivity="false">
      <appender-ref ref="File"/>
    </logger>>

    <root level="error">
      <appender-ref ref="STDOUT"/>
    </root>
  </loggers>

</configuration>