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From Juan Alvarez Ferrando <jaferra...@oviedo.syseca.es>
Subject Re: Passing parameters to a bean from a JSP
Date Tue, 04 Apr 2000 07:10:11 GMT
This HTML:

<HTML>
<HEAD><TITLE>Example</TITLE></HEAD>
<BODY>
<H1>Your Name:</H1>
<FORM TYPE=POST ACTION=hello.jsp>
<INPUT TYPE=TEXT NAME=YOURNAME>
</FORM>
</BODY>
</HTML>

With this hello.jsp:

<HTML>
<HEAD><TITLE>Example</TITLE></HEAD>
<BODY>
<H1>Hello <% =request.getParameter("YOURNAME") %></H1>
</BODY>
</HTML>

Should work. You can also check some of the examples at
/path/to/tomcat/webapps/examples/jsp.

Can you post come of your HTTML/Javascript and your JSP?. 

> 
> The request.getParameterNames() and request.ParameterValues() are returning
> null. I am pulling values from the FORM using JavaScript so I know that the
> fields are there and that they have values. How do I initialize the request
> object so that I can pull FORM values from it?
> 
> >
> >Your FORM parameters and INPUT fileds are sent to your JSP in the same
> >way that they are to a Servlet (after all your JSP are compiled into
> >Servlets by the server). There's a HttpServletRequest object named
> >'request' accesible in your JSP code through which you can extract the
> >values of every parameter and INPUT field of the FORM submitted by the
> >user. Check the Java API for the HttpServletRequest class.
> >
> >Jerry Thomas wrote:
> > >
> > > How do I extract data from a FORM and assign the data to a Java variable
> > > that I have declared on my JSP?
> > >
> > > > >
> > > > > I have data contained in a JavaScript variable that would like to
> >pass
> > > >to a
> > > > > method on my Java bean. I have been successful retrieving data from
> >my
> > > >bean
> > > > > into my JSP but I cannot figure out how to format the script so that
> >I
> > > >can
> > > > > send data back to my bean through its methods.
> > >
> > > >You can pass parameters as FORM hidden fields that can be extracted
> >from
> > > >a
> > > >servlet and finally passed through to the Bean. This is independent
> >from
> > > >the cookie policy set at the browser.
> > > >
> > > >Juan Alvarez Ferrando
> > > >
> > >
> 
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