java - Spring MVC response encoding issue

Question

In last few hours I've read a lot concerning this topic, and so far nothing has worked. I'm trying to return response containing "odd" some characters. Here is example of that, quite simple :

@ResponseBody
    @RequestMapping(value="test")
    public String test(){
        String test = "?????";
        System.out.println(test);
        logger.info(test);
        return test;
    }

This is my web.xml, because I found some answers where CharacterEncodingFilter helped(not in my case though). I used POST method because I read this applies to POST.

Also found this answer(related). Didn't help as well.

When I debug it the correct value appears, but when I print it doesn't as it can be seen below:

When I test it from jmeter, the response seems to be OK, Content-Type is text/html;charset=UTF-8

Here is a screenshot of that as well. http://i56.tinypic.com/14lt653.jpg

I think the right way is to return UTF-8, maybe I'm wrong.

Answer 1

Instead @ResponseBody use ResponseEntity.

@RequestMapping(value="test")
public ResponseEntity<String> test(){
    String test = "?????";
    System.out.println(test);
    logger.info(test);
    HttpHeaders responseHeaders = new HttpHeaders();
    responseHeaders.add("Content-Type", "application/json; charset=UTF-8");
    return ResponseEntity<String>(test,responseHeaders, HttpStatus.OK);
}