log4j.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"
	debug="false">
	<!-- Log to stdout if betwwen [DEBUG,WARN] -->
	<appender name="stdout" class="org.apache.log4j.ConsoleAppender">
		<param name="Target" value="System.out" />
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%d{HH:mm:ss,SSS} %-5p [%t][%F:%L]: %m%n" />
		</layout>
		<filter class="org.apache.log4j.varia.LevelRangeFilter">
			<param name="LevelMax" value="WARN" />
			<param name="LevelMin" value="DEBUG" />
			<param name="AcceptOnMatch" value="true" />
		</filter>
	</appender>

	<!-- Log to stderror if betwwen [ERROR,FATAL] -->
	<appender name="stderr" class="org.apache.log4j.ConsoleAppender">
		<param name="Target" value="System.err" />
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%d{HH:mm:ss,SSS} %-5p [%t][%F:%L]: %m%n" />
		</layout>
		<filter class="org.apache.log4j.varia.LevelRangeFilter">
			<param name="LevelMax" value="FATAL" />
			<param name="LevelMin" value="ERROR" />
			<param name="AcceptOnMatch" value="true" />
		</filter>
	</appender>


	<!-- Log everything to file: app.log -->
	<appender name="error-out" class="org.apache.log4j.FileAppender">
		<!-- Start a new log on each run -->
		<param name="Append" value="false" />
		<!-- <param name="File" value="app.log" /> -->
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%-5p [%t][%F:%L]: %m%n" />
		</layout>
	</appender>
	<logger name="log4logger">
		<level value="info" />
	<!--  	 <appender-ref ref="file" />--> 
		<appender-ref ref="stdout" />
		<appender-ref ref="stderr" />
	</logger>

	<root>
		<priority value="info" />
		<!--  <appender-ref ref="file" />  -->
		<appender-ref ref="stdout" />
		<appender-ref ref="stderr" />
	</root>
</log4j:configuration>