You might consider using:
String username = requst.get.Parameter("field_name");
This goes in your servlet and will return the String value.
John D. McDonald
CipherStream Systems
Phone: 925.373.8700
Fax: 413.793.6603
email: [EMAIL PROTECTED]
web: www.cipherstream.com
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----- Original Message -----
From: Jeremiah Connelly <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, November 17, 1999 11:47 AM
Subject: Re: passing valuees from javascript to servlets
> Given the discussion about how this should work I have a similar
> problem. I need to validate the user against my DB passing the
> "Username and password" back from the Html side to the servlet. Would I
> use the same type of methods or something similar to do this? Or is
> there a easier way? I am reading the username and password from two
> textfields on the front end. Any suggestioins would be greatly
> appreciated!
>
> jeremiah
>
> "Craig R. McClanahan" wrote:
> >
> > manoj kumar wrote:
> >
> > > Hi Andras/Pradeep,
> > >
> > > Thanks for the help.
> > > My problem is a little bit more complicated.
> > > I am able to pass values from a HTML element to a Servlet.
> > > My problem is that based on that value I want to fire a query on a
table.
> > > Let me further expalin the problem.
> > > Upon clicking a HTML link(or button), a servlet is called(A), which
fires a
> > > select query on a table
> > >
> > > select category_description from category_master
> > >
> > > The result of this query is formatted into an html page and sent back
> > > to browser.Now the user selects a particular category and presses
> > > submit/next(whatever).This results in a call to another servlet(B) or
> > > the same servlet(A,how..?) which in turn fires another query
> > >
> >
> > You don't need JavaScript to do this, although you could use it for some
> > fancier user interface effects.
> >
> > The simplest approach:
> >
> > * Change the above query to something that selects the
> > key as well as the description:
> >
> > select category_code, category_description
> > from category_master
> >
> > * In servlet A (the one that does the query above), create
> > an HTML table with one row per category. The table will
> > show the descriptions in a column.
> >
> > * For each category description, create a hyperlink to your
> > second servlet, passing the category code as a query
> > parameter. You'll end up with something like this:
> >
> > <tr><td>
> > <a href="/servletB?category=xxxxx">yyyyy</a>
> > </td></tr>
> >
> > where "/servletB" is the URL of your second servlet,
> > xxxxx is the category code for this row, and yyyyy is
> > the category description for this row.
> >
> > * The user sees a list of hyperlinks. When he or she clicks
> > one, it calls servlet B and passes the category code of the
> > selected category. In servlet B, you can retrieve this with:
> >
> > String category = request.getParameter("category");
> >
> > * Use this to dynamically construct your second SQL statement.
> >
> > >
> > > select product_name from product_master where category_code=xxxxxx
> > > This 'xxxxxxx' is something which should correspond to the category
selected
> > > by the user in the previously generated html page(by servlet A).
> > > I was thinking of making it possible through javascript but couldn't
find a
> > > solution.
> > >
> >
> > You could use a similar approach to the above to create, for example, a
> > <select> element for the categories instead of a list. If you add an
> > "onchange" JavaScript event handler, you could even have it submit the
request
> > immediately, without waiting for another button to be pressed. See one
of the
> > many web sites focused on JavaScript for details of how to do this.
> >
> > >
> > > hope this clears the idea.
> > >
> > > help is immidiately needed.
> > >
> > > thanks
> > >
> > > manoj
> > >
> >
> > Craig McClanahan
> >
> >
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>
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