if...else within JSP or JSTL

Question

I want to output some HTML code based on some condition in a JSP file.

if (condition 1) {     Some HTML code specific for condition 1 } else if (condition 2) {     Some HTML code specific for condition 2 } 

How can I do that? Should I use JSTL?

Answer 1

Should I use JSTL ?

Yes.

You can use <c:if> and <c:choose> tags to make conditional rendering in jsp using JSTL.

To simulate if , you can use:

<c:if test="condition"></c:if> 

To simulate if...else, you can use:

<c:choose>     <c:when test="${param.enter=='1'}">         pizza.          <br />     </c:when>         <c:otherwise>         pizzas.          <br />     </c:otherwise> </c:choose> 

Answer 2

If you just want to output different text, a more concise example would be

${condition ? "some text when true" : "some text when false"} 

It is way shorter than c:choose.