tomcat log4j

[simonC]

I use log4j for logging in my java web application. I use Tomcat as a
servlet container. The problem is that both the output of Tomcat
logging and my web application logging is send to stdout and the
output becomes very messy.

I would like that the loging of tomcat would not be output to stdout.
So that in stdout i would have only logs of my web application.

Hou can I set up Tomcat to achive that?

 

[Lew]

I use log4j for logging in my java web application. I use Tomcat as a
servlet container. The problem is that both the output of Tomcat
logging and my web application logging is send to stdout and the
output becomes very messy.

I would like that the loging of tomcat would not be output to stdout.
So that in stdout i would have only logs of my web application.

Hou can I set up Tomcat to achive that?

Set up a log4j.properties file that directs logging output where you want it
to go.

 

[Roedy Green]

Set up a log4j.properties file that directs logging output where you want it

to go.

It will have a line in it something like this:
log4j.appender.A.File=a.log

 

[Mark Jeffcoat]

Set up a log4j.properties file that directs logging output where you
want it to go.

Specifically, to get a handle on what Tomcat sends to
stdout, you need to tell log4j what to do with org.apache.catalina
log messages. E.g.,

<log4j_fragment>
<appender name="tomcat_log" class="org.apache.log4j.RollingFileAppender">
[configure this appender...]
</appender>

<logger name="org.apache.catalina">
<level value="info" />
<appender-ref ref="tomcat_log" />
</logger>
</log4j_fragment>


(I use log4j.xml instead of log4j.properties, since log4j's
configuration is so thoroughly hierarchal. Just a minor matter
of taste; if you have an existing log4j.properties, it should
be simple enough to translate this example into that format.)