Convert Java variable containing newline to javascript variable

Question

I want to convert a java variable(containing newline and other special characters) from server side sent to JSP to javascript variable.

In my JSP,

var test = '${educationDescription}';
alert(test);

Value of educationDescription sent from server side is

    This is
test
containing newline
and other special chars like " & ; etc

But I am getting javascript error for the above code snippet.

Hi Suresh, I am getting javascript error for the above code since in javascript, its a string var spanning in more than 1 line. — Jaydeep Rajput, Sep 05 '14 at 08:21
As this is a variable which is containing new lines, you need to escape new line. — Tapos, Sep 05 '14 at 08:31
Have you tried using StringEscapeUtils.escapeJavaScript from Apache's common-lang lib? — jcdang, Sep 05 '14 at 08:40

Suresh Atta · Answer 1 · 2014-09-05T08:41:57.487

This issue I faced long back and very irritated with javascript as well for no proper error message.

Later I managed to solve by replacing all catridges like below from Java string.

<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>

'${fn.replace(educationDescription,"\\r\\n|\\r|\\n", "")';

It solves the issue.

The issue here is with, we assume the problem is with new line. But sometimes the String comes with a brand new catride \r which many people not aware.

score 0 · Answer 2 · answered Sep 05 '14 at 08:44

0

You can do something like this. Use two slashes ("\\n")

<%
String s = "This is a \\n test";
request.setAttribute("s", s);
%>

var s="${s}";
alert(s);

answered Sep 05 '14 at 08:44

Ken de Guzman

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Convert Java variable containing newline to javascript variable

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