CODEWITHSUNDEEP
javajsp
user1911251
user1911251

Reputation:

JSP: constructing variables names

Inside a JSP, I need to programmatically construct variable names to access, e.g.

List of variables

Using a <c:forEach> with ${variable + i} will not suffice, since i is sum to the variable. Any suggestions?

Upvotes: 0

Views: 473

Answers (2)

BalusC
BalusC

Reputation: 1108577

Use the <jsp:useBean class="java.util.HashMap"> trick.

<jsp:useBean id="variables" class="java.util.HashMap" />
<c:forEach items="${items}" var="item" varStatus="loop">
    <c:set target="${variables}" property="variable${loop.index}" value="some" />
    ...
</c:forEach>

This basically creates a HashMap in the page scope and puts the given variables as map keys. The associated map value is free to your choice. You can even use EL in it.

In order to access it, just use ${variables['variable1']} the usual way and so on.

Upvotes: 2

Aurand
Aurand

Reputation: 5537

Use an array with "i" as the index.

Upvotes: 0

Related Questions