Decode URL whereas encoded string are in double quotes

Question

I have an URL like this:

localhost:8080/demo?xml=hello"<xyz>&#xa";

here I want to decode < and > 


Answer 1

From apache Common -StringEscapeUtils#escapeHtml() can simplify your job.

String string= StringEscapeUtils.unescapeHtml(encodedString);

Answer 2

First extract the part you want to decode:

 String str = url.substring(str.indexOf('"') + 1, str.lastIndexOf('"'));

Then decode it using StringEscapeUtils.unescapeHtml4:

 String result = StringEscapeUtils.unescapeHtml4(str);

Answer 3

I assume you are able to extract the String between quotes in the URL. Then you could use Apache Commons Lang (StringEscapeUtils.unescapeHtml4) to unescape special entities:

String unescapedString = StringEscapeUtils.unescapeHtml4("<xyz>&#xa");

Answer 4

Use methods provided by Apache Commons Lang

import org.apache.commons.lang.StringEscapeUtils;
// ...
String afterDecoding = StringEscapeUtils.unescapeHtml(beforeDecoding);