XML returns as default instead of JSON rest service

Question

I have a rest api that supports returning both XML and JSON as follows:

@GET
    @Path("/areas/city/{cityId}")
    @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
    public Response getAreaByCity(@PathParam("cityId") String cityId) {
        List<Area> areaList = //service call to get area
        GenericEntity<List<Area>> areaEntityList = new GenericEntity<List<Area>>(areaList) {};
        return Response.ok(areaEntityList).build();
    }

The above returns XML as default if no Accept header is defined.I want to return JSON instead..so as per the post @Produces annotation in JAX-RS, I changed my service to provide quality factor. But again XML is returned by default. After thinking for some time, I see Area class which is being used is marked with @XmlRootElement. Is this causing issue? If yes, how to resolve it? If not, how can i return JSON as default.

I am using postman rest client. However, I tested this with SOAP UI as well.. — Anand
– Anand, Commented Feb 18, 2015 at 9:37
Doing this, is returning JSON. What i want is to return JSON even if no Accept header is set. — Anand
– Anand, Commented Feb 18, 2015 at 9:41

Pasupathi Rajamanickam · Accepted Answer · 2015-02-18 09:53:22Z

3

You can try this

@POST
@Consumes({  MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
@Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
public Response post(Student s,@HeaderParam("Accept") String accept){
    if(accept!=null && accept.contains(MediaType.APPLICATION_XML)){
    accept = MediaType.APPLICATION_XML;
    }else{
    accept = MediaType.APPLICATION_JSON;
    }
    //Construct list
    Response.ok(list, accept).build();
}

edited Feb 18, 2015 at 9:53

answered Feb 18, 2015 at 9:32

Pasupathi Rajamanickam

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8 Comments

Pasupathi Rajamanickam Over a year ago

You can check the accept type, from @HeaderParam; if the accept type is XML, we can create a Response with XML, else JSON.

Pasupathi Rajamanickam Over a year ago

Ya, for this kind of situations we need to include the checks, if the client isn't providing any accept type information, by default, XML is being sent.

Anand Over a year ago

@Pasupathi- that worked, but why providing the quality factor doesn't work as explained in the given link.

Pasupathi Rajamanickam Over a year ago

Quality factor also working, if you're using SOAP UI, please check the RAW tab of Response, and confirm me if you still get XML. I changed the service Produce annotation to @Produces({MediaType.APPLICATION_XML +"; qs=0.9", MediaType.APPLICATION_JSON })

Anand Over a year ago

Did you return an JAXB object i.e. an object marked with @XmlRootElement?

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