How do I round a number in JSTL?

Question

I'm doing a division in a JSP and I'd like to round the result - how should I do this?

i.e.

<c:set
  var="expiry"
  value="${(expire.time - now.time) / (60 * 1000)}"/>

...how do I round the result?

Thanks,

Answer 1

As an alternative:

<fmt:formatNumber var="expiry"
  value="${(expire.time - now.time) / (60 * 1000)}"
  maxFractionDigits="0" />

This way you do not lose localization (commas and dots).

Answer 2

I used:

${fn:substringBefore(expiry, '.')}

which truncates rather than rounding, but that may be good enough.