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javajstl

Comparing dates in JSTL

I'm a front end programmer that's new to JSTL coding and trying to find out if one date happens before the other. 

<fmt:parseDate var="convertedDate" value="${checkDate}" pattern="MM/dd/yyyy" parseLocale="en_US"/>
<c:set var="year2020" value="${<%=new Date("1-1-2019") %>}"
<c:set var="is2019CheckDate" value="${convertedDate < year2020}" />

But this is complaining:

"${<%=new Date("1-2-2019") %>}" contains invalid expression(s): javax.el.ELException: Failed to parse the expression [${<%=new Date("1-2-2019") %>}]

How can I express the new date in JSTL? Thanks for any helpful tips.

Solution

  • How can I express the new date in JSTL?

    Same way you parsed the checkDate string:

    <fmt:parseDate var="year2020" value="1/1/2019" pattern="M/d/yyyy"/>

    Though I don't know why the year 2020 starts at the beginning of 2019.