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App Architecture

Saman Perera
Ranch Hand

Joined: Jul 15, 2003
Posts: 61
Daer all
pls any one tell me why some applications use following application architecture for Web(JSP Servlet) + EJB Application

what is the concept and its prons and cons ,how it implemant

----------------- ------------- ------------- ------
U-> Apache Web Server <--->Apache Tomcat <----> Jboss App Ser <---> DB ser
----------------- ------------- ------------- ------

or some web app(JSP Servlet) use this , what is the concept and its prons and cons ,how it implemant

----------------- ------------- --------
U-> Apache Web Server <--->Apache Tomcat <---> DB ser
----------------- ------------- --------

Thanks All
Saman
James Kesari
Greenhorn

Joined: May 18, 2006
Posts: 16
----------------- ------------- ------------- ------
U-> Apache Web Server <--->Apache Tomcat <----> Jboss App Ser <---> DB ser
----------------- ------------- ------------- ------

This is required if you want to make use of EJB services (i.e) if you have business logic that need to be remotely accessed and used by multiple applications. Bonus you get is transaction management, pooling etc.,

----------------- ------------- --------
U-> Apache Web Server <--->Apache Tomcat <---> DB ser
----------------- ------------- --------

This is required if your application is pretty simple and doesn't require EJB services.

This is my understanding of the above. Others might be able to shed more light.
Saman Perera
Ranch Hand

Joined: Jul 15, 2003
Posts: 61
Dear All

my pro is why we use both Apache Web Server and Tomcat Server for fulfill the web server requirement

Thanks
Saman
Saman Perera
Ranch Hand

Joined: Jul 15, 2003
Posts: 61
hi all

pls help

thanks all
saman
 
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subject: App Architecture