Hi,
The question here is that you can use JS as first form processing in
orther to avoid unnecessary network traffic and time-waste, but because
anybody can make its own query by hand, they can go over the JS
processing and access to the server porcess. So you need server-side
checking too.
Bye
PD, sorry for my english
ENCARA QUE NO HEM GUANYAT,... AMUNT VAL�NCIAAAA!!!
----- Missatge Original -----
De: Carlos Telleria <[EMAIL PROTECTED]>
Data: Dimecres, Juny 13, 2001 1:34 pm
Assumpte: Re: Form processing
> "Hoorn, Michiel van" wrote:
> >
> > It is possible in *any* browser to turn off JavaScript.
> JavaScript doens't
> > work then (duh). What if you validate your form, check if a date-
> field is
> > empty or not with JavaScript.....that check will NOT work then.
> >
> > What if that datefield is a primary key in your database and you
> were trying
> > to insert something into it and the JavaScript-validation was
> the only
> > validation to check if that datefield was empty or not. That
> will give you
> > an SQLException, won't it.....thus, i think JavaScript is not
> suitable for
> > validating stuff. And if you do think it is, wel that's fine for
> you.>
>
>
> If you design your page (html or jsp) with a validate function to
> checka date, and the call to 'submit' command is placed in that
> function,when any user disable javascript, his browser doesn't
> check the date,
> nor submit the form. Web app doesn't work, but you don't get an
> SQLException and there's no problem with integrity of data base.
>
> Nevertheless, I ususally check data both in client (javascript) and
> server (jsp or beans).
>
> Carlos
>
>
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unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
For digest: mailto [EMAIL PROTECTED] with body: "set JSP-INTEREST DIGEST".
Some relevant FAQs on JSP/Servlets can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
