SpringMVC HttpEntity Sınıfı

constructor
Şöyle yaparız.

HttpHeaders headers = new HttpHeaders();
headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
headers.setContentType(MediaType.APPLICATION_JSON);
headers.set("Authorization","Basic YmxvbTpibG9t");

HttpEntity<String> request = new HttpEntity<String>("parameters", headers);