[plt-scheme] getting webserver URL arguments
Hi I added the line
> (require (lib "servlet.ss" "web-server"))
as suggested but I still get the errors:
> Servlet exception: "reference to undefined identifier: extract-bindings"
(at the command line- I start the server from a script- not the command line)
In the browser I get;
> The servlet terminated abnormally.
> Please ask the author to fix the problem based on the details in the Web server's log file.
Looking in the log file the relevant line is
> (from "127.0.0.1" to "127.0.0.1" for "/servlets/hello.scm?name=22" at "Wednesday, April 6th, 2005 1:08:38pm")
I call the servlet with http://localhost:81/servlets/hello.scm?name=22
I started the web server at port 81 using the standard configuration
that came with DrScheme.
--code--
(require (lib "web-server.ss" "web-server"))
(require (lib "configuration.ss" "web-server"))
(define webconfig (load-configuration "/Program
Files/PLT/collects/web-server/configuration-table"))
(define close-me (serve webconfig 81))
--end code--
I should note that I am using DrScheme v.209, where many on this list
seem to be using the v299 (development) version.
- I didn't think that would be a source of my problem - but I thought
it might be worth a mention.
Thanks for your kind help so far.
Stephen De Gabrielle
--code--
(require (lib "unitsig.ss")
(lib "servlet-sig.ss" "web-server"))
(require (lib "servlet.ss" "web-server"))
(unit/sig () (import servlet^)
(define the-text "Hello, Web!")
`(html (head (title ,the-text))
(body ([bgcolor "white"])
(p ,the-text)
(p ,(extract-bindings (request-bindings initial-request) 'name))
(p ,the-text)
)))
--end code--
On Apr 6, 2005 2:02 AM, Jacob Matthews <jacobm[ at ]cs.uchicago.edu> wrote:
> Ah -- you're not requiring the library that provides that procedure. If
> you add
>
> (require (lib "servlet.ss" "web-server"))
>
> somewhere in the module it will work.
>
> -jacob
>
>