java - UTF-8 encoding problem in Spring MVC

Question

I' ve a Spring MVC bean and I would like to return turkish character by setting encoding UTF-8. but although my string is "??????????üü" it returns as "??????????üü". and also when I look at the response page, which is internet explorer page, encoding is western european iso, not UTF-8.

Here is the code:

    @RequestMapping(method=RequestMethod.GET,value="/GetMyList")
public @ResponseBody String getMyList(HttpServletRequest request, HttpServletResponse response) throws CryptoException{
    String contentType= "text/html;charset=UTF-8";
    response.setContentType(contentType);
    try {
        request.setCharacterEncoding("utf-8");
    } catch (UnsupportedEncodingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    response.setCharacterEncoding("utf-8");     
    String str="??????????üü";
    return str;
}   

Answer 1

I've figured it out, you can add to request mapping produces = "text/plain;charset=UTF-8"

@RequestMapping(value = "/rest/create/document", produces = "text/plain;charset=UTF-8")
@ResponseBody
public void create(Document document, HttpServletRespone respone) throws UnsupportedEncodingException {

    Document newDocument = DocumentService.create(Document);

    return jsonSerializer.serialize(newDocument);
}

see this blog post for more details on the solution