Passing multiple parameters from a jsp page to action class - using JSTL - How?

[Joanne L Corless <jc...@csc.com>]

Hi,

Spurred on with my recent success regarding passing parameters on html:link
I now want to pass 2 parameters into the action class from the jsp. I
realise I have to create a java.util.map to do this but how can I combine
this with using the JSTL?

i.e. Currently I am passing in one parameter

<html:link action="/changePage"
      paramId="pageName"
      paramName="topMenuItem"
      paramProperty="menuItemName"/>

which equates on rendering to an <a href
="<appcontext>/changePage?pageName=menuItemNameValue"></a>

Now I need to end up with a <a href
="<appcontext>/changePage?pageName=menuItemNameValue&menuBlock=menuBlockValue"></a>.
 Which I am assuming needs the html:link to be

<html:link action="/changePage"
      name="paramMap"/>

Therefore how using the JSTL can I instantiate a java.util.map and populate
it? It is simple enough to do in a java scriptlet

<% java.util.Map paramMap = new HashMap();
        paramMap.put("pageName", "menuItemNameValue");
        paramMap.put("menuBlock","menuBlockValue");
%>

but I am trying to follow best practices and use the tag libraries

Regards

Joanne Corless

CSC Computer Sciences Limited
(   Office +44 (0)1772 318025
( Mobile +44 (0)7767 656588
* email jcorless@csc.com


Based at: CSC, Alliance House, Library Road, Chorley, Lancs, PR6 7EN
CSC Computer Sciences Limited: Registered in England, No. 963578.
Registered office: Royal Pavilion, Wellesley Road, Aldershot, Hampshire,
GU11 1PZ.


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Re: Passing multiple parameters from a jsp page to action class - using JSTL - How?

[Kris Schneider <kr...@dotech.com>]

<jsp:useBean id="paramMap" class="java.util.HashMap">
  <c:set target="${paramMap}" property="pageName" value="menuItemNameValue"/>
  <c:set target="${paramMap}" property="menuBlock" value="menuBlockValue"/>
</jsp:useBean>

Quoting Joanne L Corless <jc...@csc.com>:

> Hi,
> 
> Spurred on with my recent success regarding passing parameters on html:link
> I now want to pass 2 parameters into the action class from the jsp. I
> realise I have to create a java.util.map to do this but how can I combine
> this with using the JSTL?
> 
> i.e. Currently I am passing in one parameter
> 
> <html:link action="/changePage"
>       paramId="pageName"
>       paramName="topMenuItem"
>       paramProperty="menuItemName"/>
> 
> which equates on rendering to an <a href
> ="<appcontext>/changePage?pageName=menuItemNameValue"></a>
> 
> Now I need to end up with a <a href
>
="<appcontext>/changePage?pageName=menuItemNameValue&menuBlock=menuBlockValue"></a>.
>  Which I am assuming needs the html:link to be
> 
> <html:link action="/changePage"
>       name="paramMap"/>
> 
> Therefore how using the JSTL can I instantiate a java.util.map and populate
> it? It is simple enough to do in a java scriptlet
> 
> <% java.util.Map paramMap = new HashMap();
>         paramMap.put("pageName", "menuItemNameValue");
>         paramMap.put("menuBlock","menuBlockValue");
> %>
> 
> but I am trying to follow best practices and use the tag libraries
> 
> Regards
> 
> Joanne Corless
> 
> CSC Computer Sciences Limited
> (   Office +44 (0)1772 318025
> ( Mobile +44 (0)7767 656588
> * email jcorless@csc.com
> 
> 
> Based at: CSC, Alliance House, Library Road, Chorley, Lancs, PR6 7EN
> CSC Computer Sciences Limited: Registered in England, No. 963578.
> Registered office: Royal Pavilion, Wellesley Road, Aldershot, Hampshire,
> GU11 1PZ.

-- 
Kris Schneider <ma...@dotech.com>
D.O.Tech       <http://www.dotech.com/>

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