Arun Thomas wrote:
> There were some problems with the local mail server this weekend, and I
> didn't see this
> post I sent last Friday, so I'm reposting. Any suggestions are still
> welcome.... :)
>
> Hello all,
>
> I'm asking hoping that someone will have a suggestion....
> Following some of the architecture guidelines I've seen here and elsewhere,
> I've set up a system with a controller servlet forwarding for presentation
> to
> a JSP. I have several forms in the JSP which I would like to submit back to
> the URL of the original servlet. As per the HTML 4 specs, the ACTION
> parameter
> of the form tag is now a required element. In order to provide this
> element,
> I would like to avoid hardcoding a particular URI, as this will force
> deployers
> to have very specific mappings of servlets to aliases. If I create the
> entire presentation in a servlet, I can user request.getRequestURI() to
> generate the
> appropriate path. Once I forward to the JSP, however, using the same method
> provides the URI of the jsp, as used in obtaining a request dispatcher.
>
> Is there any way to obtain the original RequestURI?
>
Although the servlet API doesn't help you with this, how about having your servlet
add a request attribute containing its own request URI, before it forwards to the
JSP page? That way, from the JSP page perspective, you just use a request-scoped
bean to retrieve the URL it should use when generating ACTION attributes.
In practice, I haven't really had any difficulties with hard coding, because what I
actually do is use a relative URL (instead of an absolute one) for the ACTION
attribute. The relative path to my servlet is hard coded (I normally use
extension-mapping, but you could also hard code to a fixed name with a
<servlet-mapping> element), but I can change the context path of my app, or even
move to a different host, without affecting the URL that I generate.
>
> -AMT
>
Craig McClanahan
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