javascript and servlets.

[Da...@rnib.org.uk]

I have a form with multiple <input name="file0"> elements.
The names are generated and range file0..n

I'm trying (and failing) to retrieve the value of the input fields.
String f ="";
	f = request.getParameter("file0");
works fine; 
   The remainder appear inaccessible.
In the docs ...webapps/tomcat-docs/servletapi/index.html
I'm warned:
  You should only use this method when you are sure the parameter has only
one value. If the parameter might have more than one value, use
getParameterValues(java.lang.String).

However, since each entry within the form has a variant name value,
what parameter should I pass to the getParameterValues method
to retrieve the multiple values?

tc 5.0.27 in use.


Regards DaveP.

**** snip here *****

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Re: javascript and servlets.

[John Villar <jo...@florhard.com>]

A better approach would be to name all the fields "file" instead of 
"fileX" and then us the getParameterValues to get the enumeration of 
values taken from the fields named "file".... very simple and 
elegant.... not "for (int...." loop.... just a plain old while 
(enum.hasMoreElements()){ enum.nextElement().....}

if your javascrip relies on the field names, you can use the fields ID 
instead, because field ID isn't passed as parameter name....

David.Pawson@rnib.org.uk escribió:

>I have a form with multiple <input name="file0"> elements.
>The names are generated and range file0..n
>
>I'm trying (and failing) to retrieve the value of the input fields.
>String f ="";
>	f = request.getParameter("file0");
>works fine; 
>   The remainder appear inaccessible.
>In the docs ...webapps/tomcat-docs/servletapi/index.html
>I'm warned:
>  You should only use this method when you are sure the parameter has only
>one value. If the parameter might have more than one value, use
>getParameterValues(java.lang.String).
>
>However, since each entry within the form has a variant name value,
>what parameter should I pass to the getParameterValues method
>to retrieve the multiple values?
>
>tc 5.0.27 in use.
>
>
>Regards DaveP.
>
>**** snip here *****
>
>  
>

-- 
John Villar
Gerente de Proyectos
Computadores Flor Hard Soft 2058 C.A.
www.florhard.com