How to pass a EL argument to function in JSP

Question

How can I change to correct below code?

<%!
    public String renderComment(String comment) {
        return comment.replaceAll("<", "&lt;").replaceAll(">", "&gt;").replaceAll("\n", "<br />");
    }
%>

<c:forEach var="answer" items="${answerList}" varStatus="status">
    <%=renderComment(${answer.cn})%> <!-- This is wrong. -->
    <%=renderComment(answer.cn)%> <!-- This is wrong.-->
    ${renderComment(answer.cn)} <!-- This is wrong, too! How can I do? -->
</c:forEach>

It would have to be something like <%=renderComment((String)(pageContext.getAttribute("answer").cn))%> But the field cn might be a problem. What does the getter and setter signatures look like? — rickz, Dec 01 '15 at 02:55
Or maybe something like <%=renderComment((Answer)(pageContext.getAttribute("answer")).cn)%> — rickz, Dec 01 '15 at 03:02
The type of answerList is List>. I did trye (Map)(pageContext.getAttribute("answer")).cn — Jaime, Dec 01 '15 at 04:43
For testing, did you try to display something using just El with no JSTL? What does ${answerList[0]} print? — rickz, Dec 01 '15 at 05:22
only print value ${answer.cn}. It is work well. but I want remove HTML tags and line feed replace to
tags — Jaime, Dec 01 '15 at 05:43
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/96632/discussion-between--and-rickz). — Jaime, Dec 01 '15 at 05:44

score 0 · Accepted Answer · edited May 23 '17 at 10:27

0

I guess, there is no way.
However, I found a another way.

How to call a static method in JSP/EL?

Probably, this way is best.

edited May 23 '17 at 10:27

Community

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answered Dec 04 '15 at 04:05

Jaime

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How to pass a EL argument to function in JSP

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