servlets

[nastik pandit]

guys, we can forward request using request's or context's requestDispatcher.In which case we will use request, and in which case we will use context? also whats the difference between / and ../. Please help

[Bear Bibeault]

First, a few things that will help you out here on the Ranch.

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Using a title of "servlets" in a forum completely dedicated to questions on Servlets isn't very helpful.

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Secondly, not everyone who helps people out here is a "guy".

[Anutosh Swamy]

Dear Krishna,

We can forward a request either by using the RequestDispatcher() of ServletContext interface or the ServletRequest interface, the point when to use ServletContext or ServletRequest is that the ServletRequest looks for the resources in the same context (same webapp) to which the invoking servlet belongs.

Moreover the pathname used in the RequestDispatcher() of ServletContext must begin with a "/" which is an absolute path.

The pathname used in the RequestDispatcher() of ServletRequest interface can be an absolute path or a relative path means it can start with “/” or “../..”.

[Bauke Scholtz]

That kind of questions are usually answered in the API docs.

http://java.sun.com/javaee/5/docs/api/javax/servlet/ServletContext.html#getRequestDispatcher(java.lang.String)
http://java.sun.com/javaee/5/docs/api/javax/servlet/ServletRequest.html#getRequestDispatcher(java.lang.String)

Please familiarize yourself with the API docs and learn to find/understand them.

Edit: links fixed, UBB parser didn´t seem to take the last parenthesis in the generated URL.