Can scripting elements be intermixed with JSTL?

Question

For example can you have a statement like <% pageContext.setAttribute("value",row.get(key.toString())); %> within a <c:forEach> loop? One page where I needed it, it worked. On another page, however, I got the error "Scripting elements are disallowed here." If not, is there a way in JSTL to access Map values in a List of Maps when you don't know the keys for the Map ahead of time? Using a variable for the keys does not seem to work in Expression language.

Answer 1

Sure you can. But you shouldn't have to.
What did you do to get a "Scripting elements are disallowed here." message?
is there a way in JSTL to access Map values in a List of Maps when you don't
know the keys for the Map ahead of time?
Using a variable for the keys does not seem to work in Expression languageTo use variables for keys, you have to use the square brackets notation instead of the "dot" notation.
  // this
  ${myMap.myValue}
  // is equivalent to this
  ${myMap["myValue"]}
  // is equivalent to this:
  <c:set var="key" value="myValue"/>
  ${myMap[key]}
// looking at your example
  <% pageContext.setAttribute("value",row.get(key.toString())); %>
// I'm guessing at something like this:
<c:set var="key"><%= key.toString() %></c:set>
<c:forEach var="row" items="${rowList}">
  <c:set var="value" value="${row[key]}"/>
</c:forEach>Not too sure exactly where this key comes from, but I hope this helps a bit.
Cheers,
evnafets