How to uri encode a string in jsp?

Question

if I have a string \"output\" that equals a url:

${output} = \"/testing/method/thing.do?foo=testing&bar=foo\"

in the jsp,

Answer 1

It's not directly possible with standard JSTL tags/functions. Here's a hack with help of :

URL-encoded component: ${url}

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:

URL-encoded component: ${my:urlEncode(output, 'UTF-8')}

with

public static String urlEncode(String value, String charset) throws UnsupportedEncodingException {
    return URLEncoder.encode(value, charset);
}