Java Spring：不支持内容类型“multipart/form-data;boundary;charset=UTF-8”

Question

I have created a controller:

@RequestMapping(value = "/photo/" , method = RequestMethod.POST)
public @ResponseBody
void addPhotoData(@RequestBody Photo photo, @RequestParam("data")
        MultipartFile photoData) {

    InputStream in = null;
    try {
        in = photoData.getInputStream();
        photoService.save(photo, in);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

and I send the request with Postman:

I cannot understand why I receive the error 415 not supported. Help!

Answer 1

Try wrapping the request body into an object.

 public class Payload {
   private String name;
   private String url;
   private MultipartFile data;
...
}

Add consumes = { "multipart/form-data" } and

@RequestMapping(value = "/photo/" , method = RequestMethod.POST, consumes = { "multipart/form-data" })
public @ResponseBody void addPhotoData(@ModelAttribute Payload payload) {
...

}

There is also MediaType.MULTIPART_FORM_DATA_VALUE constant instead of using that string

Answer 2

This is called multipart mixed type. Try changing your signature like this

@RequestMapping(value = "/photo/" , method = RequestMethod.POST, consumes = {"multipart/mixed"})
public @ResponseBody void addPhotoData(@RequestPart Photo photo, @RequestPart("data")
        MultipartFile photoData) {