Problem while loading the log4j.xml in to the classpath

Question

Hi,
I am working with a web application using tomcat5.0.I am using log4j for logging the information in my application.I am keeping log4j.xml out side of the application(Generally we will keep under WEB-INF/classes ).Now I want to load the log4j.xml from outside location in my ContextListner class.I am using the following code.
String cmd="java -cp -Dlog4j.configuration=C:/sample/log4j.xml";
               Runtime runtime = Runtime.getRuntime();
               Process process = null;
               process = runtime.exec(cmd);  but I am getting the following errors.
log4j:WARN File option not set for appender [stdout].
log4j:WARN Are you using FileAppender instead of ConsoleAppender?
log4j:WARN No appenders could be found for logger (org.apache.catalina.session.ManagerBase).
log4j:WARN Please initialize the log4j system properly.
log4j:ERROR No output stream or file set for the appender named [stdout].
Feb 26, 2009 7:48:28 PM org.apache.coyote.http11.Http11BaseProtocol startI am not getting where am I doing wrong.
Any Ideas please?
Regards
kondal

Answer 1

My log4j.xml looks like
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
     <appender name="file" class="org.apache.log4j.RollingFileAppender">
          <param name="File" value="C:\\niablogs\\niab3.log"/>
        <param name="MaxFileSize" value="1MB"/>
        <param name="append" value="true"/>
        <param name="MaxBackupIndex" value="5"/>
          <layout class="org.apache.log4j.PatternLayout">
               <param name="ConversionPattern" value="(%-25.25F:%4L) %d{yyyy MM dd HH:mm:ss:SSS} [%-30.30t] %5p - %m %n" />
          </layout>
     </appender>
    <logger name="in.co" additivity="false">
        <level value="all" />
        <appender-ref ref="file" />
    </logger>
</log4j:configuration>It is working fine if I keep log4j.xml under WEB-INF/classes.If I keep my log4j.xml is outside of the application then it is not working.As per ApacheLog4j Specification we need to set the xml file path to the log4j.configuration system property.Even I tried putting like the following in my Listener class System.setProperty("log4j.configuration", "C:/kondal/log4j.xml");.
Any Ideas please?
Thanks
kondal