HttpMediaTypeNotAcceptableException: Could not find acceptable representation in exceptionhandler

Question

I have the following image download method in my controller (Spring 4.1):

@RequestMapping(value = \"/get/image/{id}/{fileName}\", method=RequestMethod.GET)
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Answer 1

Pay attention to your HTTP Accept header. For example, if your controller produces "application/octet-stream" (in response), your Accept header should NOT be "application/json" (in request):

@GetMapping(value = "/download", produces = MediaType.APPLICATION_OCTET_STREAM_VALUE)
public void download(HttpServletResponse response) {}