Java JAX-RS@PUT注释不继承

Question

我有一个抽象类，它声明了@put方法：

public abstract class BaseResource<T> {

  @PUT
  @Consumes(MediaType.APPLICATION_JSON)
  @Produces(MediaType.APPLICATION_JSON)
  public abstract Response create(T entityClass);

}

然后一个类实现该方法：

public class GroupsResource extends BaseResource<Group> {

  @Override
  public Response create(Group newGroup) {

    // this works.
    // ...
    return response.build();

  }
}

更新：

我从零开始使用Java EE7，这很有效。

Answer 1

我在我的项目中遇到了同样的问题，我是这样解决的：

//Inject the object mapper because you don't want to retreive an "Object"
@Inject
ObjectMapper objectMapper;

@PUT
//The PUT endpoint retrieves a plain object
public Response update(Object object){
   //Now we determine the concrete type of the object by using reflection
   ParameterizedType p = (ParameterizedType) getClass().getGenericSuperclass();
   Class<DTO> clazz = (Class<DTO>) p.getActualTypeArguments()[0];

   //Pass the object and the determined type to the objectmapper
   DTO dto = objectMapper.convertValue(object, clazz);

   //Now call an abstract method that deals with the object in you concrete class
   updateDto(dto);
}

protected abstract Response updateDto(DTO dto);