where are the request parameters declare

[anarkali perera]

i found there are
1) servlet init parameters
2) context parameters
3) request parameters

i know that servlet init parameters and contwxt parameters are declare on Deployment Descripter.But where are the request parameters declare?

[Ulf Dittmer]

Those are the parameters that are sent by the browser from within an HTML form. So they would be "declared" by whoever created the HTML/JSP page containing the form.

[anarkali perera]

then what about request attributes.

[Ulf Dittmer]

Request attributes are set/unset/modified by the web app code itself. See the related methods in the HttpServletRequest class.

[Vijitha Kumara]

anarkali perera wrote:then what about request attributes.

Those are server side objects you can set on the request object itself. You attach an object with a name,later you can retrieve it from that name. Attributes can be set on HttpServletRequest, HttpSession, javax.servlet.ServletContext.

[anarkali perera]

thanks