Servlet an Threads
Hello,
When my web application starts I would like to start a thread which checks some records in the database every 24 hours and sends an e-mail to the administrator.
Does anyone know how to do this ?
I suggest I make a servlet which I initialize on startup of my application.
(in the web.xml)
In the Init() method of this servlet I instantiate a Thread which executes every 24 hours.
Is this correct ?
Regards,
Tommie Denoble.
# 1
Hello,This is a solution with the tag "<load-on-startup>" set to 1 for example.This will ensure the servlet will be loaded at startup.You can also register listener on many events like session,context ....Regards,Sebastien Degardin.
# 2
Hi Tommie,
You're correct. It is one of the ways to achieve what you want.
The other way is to write your own class that implements the javax.servlet.ServletContextListener interface: http://java.sun.com/products/servlet/2.3/javadoc/javax/servlet/ServletContextListener.html
In particular, you will want to implement the "contextInitialized()" method.
Then in your web.xml, simply add in a <listener> tag to reference your class.
