Calling specific service on web api

Question

I have a web API running with a service called Authorize.

Authorize takes 1 parameter (called ) and returns a different key.

I'm going to call this from a Java application. I've done

public static void main(String[] args0)
{
    HttpClient httpClient = HttpClientBuilder.create().build();

    try{

        HttpPost request = new HttpPost("http://localhost:50481");
        StringEntity params = new StringEntity("Authorize={\"auth\":\"123456\"}");
        request.addHeader("content-type", "application/json");
        request.addHeader("Accept", "application/json");
        HttpResponse response = httpClient.execute(request);            
        JSONObject json = new JSONObject(response);

        System.out.println(json);

    }
    catch(Exception ex){
        System.out.println(ex.toString());
    }
    finally{ 

    }
}

The problem is, that the System.out.println(json); only returns an empty object: {}

Does that mean that there is a problem in the service itself, or that it does not hit a valid method on the API?

Answer 1

由于{}是有效的（空）json，因此您不会遇到任何异常，就好像您的服务返回带有空json对象的响应一样。