LogTargetFactory targetFactory = new DefaultLogTargetFactory();
logger.debug("This is a debug message");
logger.info("This is an info message");
logger.warn("This is a warning message");
logger.error("This is an error message");
<?xml version="1.0" encoding="UTF-8"?>
<logkit>
<targets>
<target name="console" class="org.apache.log.output.ConsoleTarget">
<property name="prefix" value="[MyApp]"/>
</target>
</targets>
<categories>
<category name="com.example.myapp" additivity="false">
<priority value="debug"/>
<target-ref name="console"/>
</category>
</categories>
</logkit>