JSTL and string concatenation possible?

[kantorn]

I have ${stub} = 2@3# and ${levels} = [1, 2, 3, 4]

I would like to do something like

<c&#58;forEach var="level" items="$&#123;levels&#125;">
  <c&#58;out value="$&#123;stub&#125;$&#123;level&#125;"/>
</c&#58;forEach>

resulting in

• 2@3#1
  2@3#2
  2@3#3
  2@3#4

I've tried every(?) possible combination. Is String concat without any blankspace possible in JSTL?

[irbouho]

did you try

<c&#58;forEach var="level" items="$&#123;levels&#125;"> 
  <c&#58;out value="$&#123;stub&#125;"/><c&#58;out value="$&#123;level&#125;"/> 
</c&#58;forEach>

[kantorn]

Problem is I have to assign it to a new variable:

<c&#58;set var="stubplus" value="<c&#58;out value="$&#123;stub&#125;"/><c&#58;out value="$&#123;level&#125;"/>" />

Chokes on "unterminated tag" unforunately....

[irbouho]

Then try this

<c&#58;forEach var="level" items="$&#123;levels&#125;"> 
  <c&#58;set var="stubplus" value="$&#123;stub&#125;$&#123;level&#125;" /> 
  <c&#58;out value="$&#123;stubplus&#125;"/>
</c&#58;forEach>

[irbouho]

Mark Kolb wrote a good article about JSTL on developerWorks.

[kantorn]

Thanks! Appreciate your answers.