Sending Mail on Errors with Log4j

[khoyaraaz]

Hi,
I'm using jboss4.0.3SP1 right now, I was wondering how to get my errors/exceptions mailed to my email. I tried configuring the conf/log4j.xml file with the following setting:

<!-- EMail events to an administrator -->
 <appender name="SMTP" class="org.apache.log4j.net.SMTPAppender">
 <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>
 <param name="Threshold" value="ERROR"/>
 <param name="To" value="[e-mail]"/>
 <param name="From" value="[e-mail]"/>
 <param name="Subject" value="JBoss Sever Errors"/>
 <param name="SMTPHost" value="Success"/>
 <param name="BufferSize" value="10"/>
 <layout class="org.apache.log4j.PatternLayout">
 <param name="ConversionPattern" value="[%d{ABSOLUTE},%c{1}] %m%n"/>
 </layout>
 </appender>

I then use a Logger (org.jboss.Logging.logger) to catch an exception like this in my code:

private Logger m_oLog = Logger.getLogger("NameOfBean");
and in the code itself:
catch(EntityNotFoundException e)
 {
m_oLog.error("Cound not find PurchaseId: " + strPurchaseId);
 }

What else am I missing?
Thanks!

[khoyaraaz]

So the solution (or what I was missing) was to include the SMTP appender to the root category in the lo4j.xml file (at the bottom of the file):

<!-- ======================= -->
 <!-- Setup the Root category -->
 <!-- ======================= -->

 <root>
 <appender-ref ref="CONSOLE"/>
 <appender-ref ref="FILE"/>
 <appender-ref ref="SMTP"/>
 </root>

Works now :) . That was easy, just took forever to figure it out by myself, wish these things were documented somewhere.

I am receiving 2 emails though, one for each error. Anyone know how I could get a bunch of errors in the same mail, grouped by time or session?
Thanks in advance :)

[jiwils]

"khoyaraaz" wrote:
I am receiving 2 emails though, one for each error. Anyone know how I could get a bunch of errors in the same mail, grouped by time or session?

The Log4j SMTPAppender provides much of that functionality by default.

Take a look at http://logging.apache.org/log4j/docs/api/org/apache/log4j/net/SMTPAppender.html for more information.

[jiwils]

"jiwils" wrote:

"khoyaraaz" wrote:
Take a look at http://logging.apache.org/log4j/docs/api/org/apache/log4j/net/SMTPAppender.html for more information.

The http://logging.apache.org/log4j/docs/api/org/apache/log4j/spi/TriggeringEventEvaluator.html class has more helpful input too.