How can i use JSTL variable in scriptlet?

java jsp jstl scriptlet
Rakesh Juyal picture Rakesh Juyal · Dec 28, 2009 · Viewed 42.8k times · Source

I have to access the JSTL variable which is calculated inside the iterator.
Excerpt of code: 

<c:forEach var="resultBean" items="${resultList}" varStatus="status">
   card: ${resultBean.cardNum} 
</c:forEach>

i would like to access ${resultBean.cardNum} in the scriptlet code. what i am doing right now is: 

<c:forEach var="resultBean" items="${resultList}" varStatus="status">
   card: ${resultBean.cardNum} 
   <c:set var="currentCardNum">${resultBean.cardNum}</c:set>
   <%out.write( StringUtils.mask( (String)pageContext.getAttribute("currentCardNum") ) );%>
</c:forEach>

I want to skip 3rd line where i am setting the variable in pageContext. Is it possible to achieve the same result without setting it? Or is there other way round which i can use?

Answer

David Rabinowitz picture David Rabinowitz · Dec 28, 2009

You can try the following:

<%
  ResultBean resultBean = (ResultBean) pageContext.getAttribute("resultBean");
  out.write( StringUtils.mask( resultBean.getCardNum() ) );
%>

BTW - you can add another method to resultBean - getMaskedCardNum(), and then just put in the page ${resultBean.maskedCardNum} which is more readable.

Related questions

I can pass a variable from a JSP scriptlet to JSTL but not from JSTL to a JSP scriptlet without an error

The following code causes an error: <c:set var="test" value="test1"/> <% String resp = "abc"; resp = resp + test; pageContext.setAttribute("resp", resp); %> <c:out value="${resp}"/> The error says "error a line 4: unknown symbol …

Read More
JSTL fmt:formatNumber

How do I format a variable with <fmt:formatNumber> ? I'm learning JSTL and converting from old Struts tags. This doesn't work. It can't read the distance variable! <%double distance=geo.getDistance(geo.getLatitude(), geo.getLongitude(), lat, lng);%&…

Read More
How to pass java variables from scriptlets to c:when expression in jstl?

what is a proper way to use variables from scriptlets in jstl? I don't know what is wrong in my code: <% boolean a = true; boolean b = false; %> <c:choose> <c:when test="${a}"> <…

Read More