Spring boot Unsupported Media Type with @RequestBody

In Postman. under Body, select raw and choose JSON from the drop down menu that appears. Then write the JSON that is the request body. You can’t use form-data or x-www-form-urlencoded with @RequestBody, they are used when the binding is @ModelAttribute.

You can write the code as
headers.put("Content-Type", Arrays.asList("application/json"));
instead of
headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));

You need a @NoArgsConstructor for the deserialization to work. If the no arguments constructor is not there, the Http message converters fail to map the json(other media type) to the Java object. And a 415 is returned

The problem is that when we use application/x-www-form-urlencoded, Spring doesn’t understand it as a RequestBody. So, if we want to use this we must remove the @RequestBody annotation.

@RequestMapping(value = "/", method = RequestMethod.POST, consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
    public void createMessage(Message message){
        //TODO DO your stuff here
    }