Switch off UTF escaping in JsonBuilder

Question

I'm trying to use JsonBuilder in groovy servlet (extending HttpServlet) Here is a snippet:

 public void doGet(HttpServletRequest request, HttpServletResponse response) {
     response.setContentType('text/plain')
     response.setCharacterEncoding('utf-8')

     def pw = response.getWriter()
     pw.println(new JsonBuilder(['city': 'Москва']))
     pw.println([сity: 'Москва'])
  }

The output is

{"city":"\u041C\u043E\u0441\u043A\u0432\u0430"}
{сity=Москва}

I just don't know nothing about UTF escaping in JsonBuilder, googling also did not give my anything valuable. So I guess I'm stuck.

Does anybody know how to get the output for json exactly in same form as we get the output for regular groovy object?

Answer 1

I have encountered the same issue, and the above methods didn't work. However this did: http://groovy.codehaus.org/gapi/groovy/json/StringEscapeUtils.html

StringEscapeUtils.unescapeJavaScript(JsonOutput.toJson('Москва'))