How to extract HTTP status code from the RestTemplate call to a URL?

Question

I am using RestTemplate to make an HTTP call to our service which returns a simple JSON response. I don't need to parse that JSON at all. I just need to return whatever I am getting back from that service.

So I am mapping that to String.class and returning the actual JSON response as a string.

RestTemplate restTemplate = new RestTemplate();

String response = restTemplate.getForObject(url, String.class);

return response;

Now the question is -

I am trying to extract HTTP Status codes after hitting the URL. How can I extract HTTP Status code from the above code? Do I need to make any change into that in the way I doing it currently?

Update:-

This is what I have tried and I am able to get the response back and status code as well. But do I always need to set HttpHeaders and Entity object like below I am doing it?

    RestTemplate restTemplate = new RestTemplate();     

    //and do I need this JSON media type for my use case?
    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.APPLICATION_JSON);

    //set my entity
    HttpEntity<Object> entity = new HttpEntity<Object>(headers);

    ResponseEntity<String> out = restTemplate.exchange(url, HttpMethod.GET, entity, String.class);

    System.out.println(out.getBody());
    System.out.println(out.getStatusCode());

Couple of question - Do I need to have MediaType.APPLICATION_JSON as I am just making a call to url which returns a response back, it can return either JSON or XML or simple string.

Answer 1

Use the RestTemplate#exchange(..) methods that return a ResponseEntity. This gives you access to the status line and headers (and the body obviously).