[jstl] How do I check two or more conditions in one <c:if>?

How do I check two conditions in one <c:if>? I tried this, but it raises an error:

<c:if test="${ISAJAX == 0} && ${ISDATE == 0}"> 

This question is related to jstl el

The answer is


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)}">