1.6.6

Including Requests

create/update

Request

Server 

JSP/Servlet

Side

Client

Response

Objects

include request

JSP/Servlet

access/update

Another useful application model involves request includes. In this model, the request 

reaches an initial JSP page. The page may start generating/composing some result but at 

some point it may want to dynamically include the contents of some other page. These 

contents may be static but may also be dynamically generated by some other JSP page, 

Servlet class, or some legacy mechanism like ASP.

Although in some cases this inclusion model is applicable to presentation dependent 

contents, it is most often used in the context of a presentation independent content, like when 

the data generated is actually XML (which may be converted later into some other format 

using, say, XSL).

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JavaServer Pages 1.1 Specification   November 30, 1999