Re: [OT] getting a random number with JSTL?

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

Not directly. If you're using JSP 2.0, you can create an EL function to proxy
access to java.util.Random:

<%@ taglib prefix="rand" uri="http://dotech.com/random" %>
<jsp:useBean id="random" class="java.util.Random"/>
${rand:nextInt(random, 10)}
${rand:nextDouble(random)}

Another approach would be to create a JavaBean to proxy access to Random:

<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<jsp:useBean id="random" class="com.dotech.RandomBean"/>
<c:set target="${random}" property="maxInt" value="10"/>
<c:out value="${random.nextInt}"/>

Or, since this is an MVC framework list, you could generate the random number in
a Filter or an Action and set it as a request attribute so that it's available
to the JSP.

Quoting Axel Seinsche <st...@seinsche.net>:

> Hi all,
> 
> I know this is not a JSTL list, but maybe someone can tell me, if there 
> is a possibilty to get a random number with a JSTL tag. Best would be to 
> have min and a max value. If this doesn't exist, I think about wrtiting 
> such a tag for me. But I don't have to do this, if it still exists. ;-)
> 
> Thanks,
> 
> Axel

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

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