if I have a string "output" that equals a url:
${output} = "/testing/method/thing.do?foo=testing&bar=foo"
in the jsp, how would I convert that string into:
%2Ftesting%2Fmethod%2Fthing.do%3Ffoo%3Dtesting%26bar%3Dfoo
using
<c:out value="${output}"/>
? I need to URLEncoder.encode(url) in the c:out somehow.
It's not directly possible with standard JSTL tags/functions. Here's a hack with help of <c:url>:
<c:url var="url" value=""><c:param name="output" value="${output}" /></c:url>
<c:set var="url" value="${fn:substringAfter(url, '=')}" />
<p>URL-encoded component: ${url}</p>
If you want to do it more cleanly, create an EL function. At the bottom of this answer you can find a basic kickoff example. You'd like to end up as:
<p>URL-encoded component: ${my:urlEncode(output, 'UTF-8')}</p>
with
public static String urlEncode(String value, String charset) throws UnsupportedEncodingException {
return URLEncoder.encode(value, charset);
}
Try this:-
<c:out value="${output}" escapeXml="true" />
Granted, this will only escape special characters from XML.
