JSP makes implicit variables available to the script. These variables are used to gain information about the request, and to help form a response. They also expose some useful functionality.

JSP Variables

request

Contains the request object.

response

Contains the response object.

pageContext

State for the current page.

session

The current session. session is available only when the session directive is true.

application

The current application.

out

The buffered stream to the HTTP response.

page

The current servlet.

exception

For error pages, the exception thrown from the broken page.