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Michael,
On 12/18/18 13:53, Lemke, Michael ST/HZA-ZIC2 wrote:
> Thanks, Ryan, this JULI thing actually is what worries me. I don't
> care about tomcat's logging at the moment. It is my webapp's
> logging I can't figure out. It worked on other containers.
Oh, good: you are trying just to manage your own application's logging.
I have this class running as a ServletContextListener:
package xxx;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletContextEvent;
import org.apache.log4j.PropertyConfigurator;
import org.apache.log4j.Logger;
import org.apache.log4j.LogManager;
/**
* A listener to initialize log4j.
*
* @author Chris Schultz
* @version $Revision: 17834 $ $Date: 2015-12-16 11:03:13 -0500 (Wed,
16 Dec 2015) $
*/
public class Log4jListener
implements ServletContextListener
{
private Logger logger;
@SuppressWarnings("unused")
public void contextInitialized(ServletContextEvent e)
{
// Trigger loading of the log4j.properties file from the
classpath.
new PropertyConfigurator();
logger = Logger.getLogger(this.getClass());
logger.info("Log4j initialized");
}
public void contextDestroyed(ServletContextEvent e)
{
if(LogManager.class.getClassLoader()
.equals(this.getClass().getClassLoader()))
{
if(null != logger)
logger.info("Log4j was loaded by application
classloader; shutting down.");
LogManager.shutdown();
}
else
{
if(null != logger)
logger.info("Log4j was loaded by some other
ClassLoader; not shutting down.");
}
}
}
Calling the PropertyConfigurator constructor causes that class to look
for log4j.properties in various places, including (due to the way the
WebappClassLoader works), WEB-INF/classes. It should also look in the
"top-level" of any application JAR files that are in WEB-INF/lib.
You said that "your JAR file contains log4j.properties". Usually
applications are packaged as WAR files (or exploded WAR directories).
Are you using embedded Tomcat or Spring Boot or anything like that?
Where is your JAR file located?
- -chris
> -----Original Message----- From: Ryan Palmer Sent: Tuesday,
> December 18, 2018 7:49 PM
>
> Michael,
>
> Tomcat uses JULI internally. Have you taken necessary steps to
> redirect JULI to log4j?
>
> Thanks, Ryan
>
> ________________________________ From: Lemke, Michael ST/HZA-ZIC2
> <lemke...@schaeffler.com> Sent: Tuesday, December 18, 2018 10:20
> AM To: Tomcat Users List Subject: RE: log4j app logging
>
> On December 18, 2018 6:59 PM Ryan Palmer wrote:
>>
>> The file needs to be named
>> log4j.properties<http://log4j.properties> (or .xml, .json, etc.)
>> and needs to be in the classpath. You ommitted the 'j'.
>
> Thanks for spotting this. Unfortunately, this typo was only in the
> email:
>
> pc# ls src/main/resources/ com log4j.properties
>
>
> So for being in the classpath it is sufficient to have it packaged
> in the jar, isn't it?
>
> Archive: myapp-1.1.0-SNAPSHOT.jar Length Method Size Cmpr
> Date Time CRC-32 Name -------- ------ ------- ----
> ---------- ----- -------- ---- 0 Stored 0 0% 12-18-2018
> 16:56 00000000 META-INF/ 98 Defl:N 91 7% 12-18-2018 16:56
> 48730e36 META-INF/MANIFEST.MF 0 Stored 0 0% 12-18-2018
> 16:56 00000000 META-INF/maven/ ... 0 Stored 0 0%
> 12-18-2018 16:56 00000000 com/ ... 1123 Defl:N 451 60%
> 12-18-2018 16:56 eea5d81a log4j.properties
>
> It ought to be something simple but before further digging into my
> setup details I want to make sure there isn't something special for
> tomcat. Something in ${catalina.base}/conf or conflicts with
> tomcat's logging system.
>
>
>> On Dec 18, 2018, at 9:42 AM, "Lemke, Michael ST/HZA-ZIC2" wrote:
>>
>> I have an old webapp that uses log4j 1.2 and which I am trying to
>> deploy on tomcat. For the heck of it I can't get tomcat to use
>> the log4.properties<http://log4.properties> file. What am I doing
>> wrong?
>>
>> tomcat 9.0.6 is installed as a Windows service and does serve my
>> webapp, so the app is working fine. The project is mavenized, I
>> put log4.properties<http://log4.properties> to src/main/resources
>> and it ends up in the jar file of my application. Is there
>> anything special that needs to be done?
>>
>> ________________________________
>>
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>>
>
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