如何在web服务REST jersey中执行向上转换？

Question

我正在尝试在REST web服务中执行向上转换。但我在响应中收到了400个错误请求。如何在web服务中执行向上转换。

@XmlRootElement
Class Animal{
String type;
...
}

@XmlRootElement
Class Tiger extends Animal{
String name;
...
}
    SERVER SIDE:
    ===========
    @POST
        @Path("/upcasting")
        @Produces(MediaType.APPLICATION_XML)
        @Consumes(MediaType.MULTIPART_FORM_DATA)
        public void testUpcasting(@FormDataParam("an") Animal anml){
            System.out.println("inside testupcasting");
            System.out.println(anml.getClass());
        }

    CLIENT SIDE:
    ===========
String uri = "http://localhost:8080/app/upcasting";
    ClientConfig config = new DefaultClientConfig();
            Client client = Client.create(config);

            WebResource resource = client.resource(uri);

            Tiger t = new Tiger();
            t.setType("Non-veg");
            t.setName("myTiger");

            FormDataMultiPart multipart = new FormDataMultiPart().field("an", t, MediaType.APPLICATION_XML_TYPE);

                ClientResponse response = resource.type(MediaType.MULTIPART_FORM_DATA).post(ClientResponse.class, multipart);

Answer 1

服务器：

@POST
@Path("/upcasting")
@Produces(MediaType.APPLICATION_XML)
@Consumes(MediaType.MULTIPART_FORM_DATA)
public void testUpcasting(Animal anml){
     System.out.println("inside testupcasting");
     System.out.println(anml.getClass());
}

客户端：

String URL = "http://......./rest/services
Client client = ClientBuilder.newClient();
target = client.target(URL);
ObjectMapper mapper = new ObjectMapper();
Response response = target.path("/upcasting").request(MediaType.APPLICATION_XML).post(Entity.entity(mapper.writeValueAsString(anml), MediaType.APPLICATION_XML);