You don't need application scope in a Spring application. Any Spring bean can effectively serve as "application scope" because a bean will live as long as the application is running. In other words, you can use a bean to store any data that you would use application scope to store in a servlet application. An example of this is the Who's Online example: the WhosOnlineService bean is used to hold the list of deferred results.
 

cshah6 wrote:

Though as we use HttpSession session in our controller ,

can we use HttpServletRequest request and use session scope as we do in servlet applicaiton?

Its allowed right ?

Yes, it's OK to use HttpServletRequest and HttpSession when necessary.