developerWorks: The Many Uses of Implicit Objects

“This installment of J2EE pathfinder is a follow-up to last
month’s introduction to the proper handling of session scopes. In
addition to accessing session scopes, JSP implicit objects can be
used to handle HTML parameters, forward a request to a Web
component, include the content of a component, log data through the
JSP container, control the output stream, handle exceptions, and
more.

“This month, you’ll learn about using implicit objects in your
JSP pages. We’ll start with a brief overview of the JSP
architecture, including implicit objects. After that, I’ll
introduce each object and describe its core capabilities. We’ll
close with a list of best practices for using each type of object
and the container-managed services it provides…”

Complete Story