sending errors and exceptions through emails in apache tomcat server start

Question

I have used apache-tomcat-7.0.25 and started a local instance on my system. i have to send errors and exceptions through emails to various people which i have found in the log files. i have the config files server.xml , web.xml, tomcat-users.xml , context.xml , catalina.properties files and also a logging.properties file.

the logging.properties file consists of the following code.

handlers = 1catalina.org.apache.juli.FileHandler, \
           2localhost.org.apache.juli.FileHandler, \
           3manager.org.apache.juli.FileHandler, \
           java.util.logging.ConsoleHandler

.handlers = 1catalina.org.apache.juli.FileHandler, java.util.logging.ConsoleHandler

############################################################
# Handler specific properties.
# Describes specific configuration info for Handlers.
############################################################

1catalina.org.apache.juli.FileHandler.level = FINE
1catalina.org.apache.juli.FileHandler.directory = ${catalina.base}/logs
1catalina.org.apache.juli.FileHandler.prefix = catalina.

2localhost.org.apache.juli.FileHandler.level = FINE
2localhost.org.apache.juli.FileHandler.directory = ${catalina.base}/logs
2localhost.org.apache.juli.FileHandler.prefix = localhost.

3manager.org.apache.juli.FileHandler.level = FINE
3manager.org.apache.juli.FileHandler.directory = ${catalina.base}/logs
3manager.org.apache.juli.FileHandler.prefix = manager.
3manager.org.apache.juli.FileHandler.bufferSize = 16384

java.util.logging.ConsoleHandler.level = FINE
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter


############################################################
# Facility specific properties.
# Provides extra control for each logger.
############################################################

org.apache.catalina.core.ContainerBase.[Catalina].[localhost].level = INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].handlers = \
   2localhost.org.apache.juli.FileHandler

org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/manager].level = INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/manager].handlers = \
   3manager.org.apache.juli.FileHandler

# For example, set the org.apache.catalina.util.LifecycleBase logger to log
# each component that extends LifecycleBase changing state:
#org.apache.catalina.util.LifecycleBase.level = FINE

How to redirect it to a mail when there is any error or exceptions?

Answer 1

Disclaimer: I'm a content developer for MailHandler included with JavaMail project.

For java.util.logging you can use MailHandler included with JavaMail .

1. Download the JavaMail reference implementation jar file (javax.mail.jar).
2. Modify the tomcat startup script include JavaMail in the Tomcat bootstrap ClassLoader.
3. Modify the logging.properties file to install the MailHandler and any supporting classes.

Here is a sample configuration:

handlers = 1catalina.org.apache.juli.AsyncFileHandler, 2localhost.org.apache.juli.AsyncFileHandler, 3manager.org.apache.juli.AsyncFileHandler, 4host-manager.org.apache.juli.AsyncFileHandler, java.util.logging.ConsoleHandler, com.sun.mail.util.logging.MailHandler

.handlers = 1catalina.org.apache.juli.AsyncFileHandler, java.util.logging.ConsoleHandler, com.sun.mail.util.logging.MailHandler


com.sun.mail.util.logging.MailHandler.subject=com.sun.mail.util.logging.CollectorFormatter
#com.sun.mail.util.logging.CollectorFormatter.format=Tomcat:{0}{1}{2}{4,choice,-1#|0#|0<... {4,number,integer} more}
#com.sun.mail.util.logging.CompactFormatter.format=[%4$-7.7s] %7$#.140s
com.sun.mail.util.logging.MailHandler.level=WARNING
com.sun.mail.util.logging.MailHandler.filter=com.sun.mail.util.logging.DurationFilter
com.sun.mail.util.logging.MailHandler.pushLevel=WARNING
com.sun.mail.util.logging.MailHandler.mail.host=some-smtp-host
#com.sun.mail.util.logging.MailHandler.mail.user=some-user
#com.sun.mail.util.logging.MailHandler.authenticator=some-password
com.sun.mail.util.logging.MailHandler.mail.from=app@server.com
#com.sun.mail.util.logging.MailHandler.mail.sender=team@list.com
com.sun.mail.util.logging.MailHandler.mail.to=devs@bugfixers.com
com.sun.mail.util.logging.MailHandler.verify=resolve
com.sun.mail.util.logging.MailHandler.mail.smtp.quitwait=false
com.sun.mail.util.logging.MailHandler.mail.smtps.quitwait=false
com.sun.mail.util.logging.MailHandler.mail.smtp.connectiontimeout=45000
com.sun.mail.util.logging.MailHandler.mail.smtps.connectiontimeout=45000
com.sun.mail.util.logging.MailHandler.mail.smtp.timeout=45000
com.sun.mail.util.logging.MailHandler.mail.smtps.timeout=45000

Answer 2

You can use log4j for this via SMTPAppender

Sample configuration would look like:

log4j.rootLogger= , mail, .. more appenders ..

#Email Appender
log4j.appender.mail=org.apache.log4j.net.SMTPAppender
log4j.appender.mail.BufferSize=1
log4j.appender.mail.SMTPHost=smtp.serverhere.com
log4j.appender.mail.From=FROMEmailAddress
log4j.appender.mail.To=List of recipients
log4j.appender.mail.Subject=Application Error
log4j.appender.mail.Threshold=ERROR
log4j.appender.mail.layout=org.apache.log4j.PatternLayout
log4j.appender.mail.layout.ConversionPattern=%d %p [%c] - <%m>%n