Recommendation:
when you have more than one condition with and
and or
is better separate with ()
to avoid verification problems
<c:if test="${(not validID) and (addressIso == 'US' or addressIso == 'BR')}">
Just in case somebody needs to check the condition from session.Usage of or
<c:if test="${sessionScope['roleid'] == 1 || sessionScope['roleid'] == 4}">
If you are using JSP 2.0 and above It will come with the EL support:
so that you can write in plain english and use and
with empty
operators to write your test:
<c:if test="${(empty object_1.attribute_A) and (empty object_2.attribute_B)}">
Source: Stackoverflow.com