Configuración de Log4j en proyecto web que usa spring

log4j.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration PUBLIC "-//APACHE//DTD LOG4J 1.2//EN" "log4j.dtd">
<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/' debug="true">
    <appender name="console" class="org.apache.log4j.ConsoleAppender">
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d %-5p [%t] %c - %m%n"/>
        </layout>
    </appender>
    <appender name="webplog" class="org.apache.log4j.RollingFileAppender">
        <param name="File" value="webp.log"/>
        <param name="MaxFileSize" value="10MB"/>
        <param name="append" value="true"/>
        <param name="MaxBackupIndex" value="5"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d %-5p [%t] %c - %m%n"/>
        </layout>
    </appender>
    <logger name="org.springframework" additivity="false">
        <level value="warn"/>
        <appender-ref ref="webplog"/>
    </logger>
    <root>
        <level value="warn" />
        <appender-ref ref="console" />
    </root>
</log4j:configuration>