ContextListener

[Sai Prasad]

I have two servlets TestServlet and TestServlet2 in a web-app along with a <listenter>LifecycleListener</listener> defined in web.xml. Also both servlets are configured to load on startup. It seems like only one instance of the listenter instance is created.
What is the life cycle of a web-app listener. One instance for all the servlets? Thanks.

[somkiat puisungnoen]

Define in web.xml
<listener>
<listener-class>TestServlet1</listener-class>
</listener>
<listener>
<listener-class>TestServlet2</listener-class>
</listener>

//javax.servlet.ServletContextListener interface is notified when web application is initialed or destroyed in container
***you remeber :
one context per web application per JVM

[Tom Wolve]

Hi,
the web server creates one instance per <listener-class> included in the web.xml.
According to the servlet specifications the instantiation process has to be completed prior to executing the first request for the application.
Also, the container must maintain a handle to the listener until the last request is made.