使用Spring HATEOAS将枚举作为REST API公开的正确方法是什么(通过Spring Data REST)

我正在尝试将HATEOAS与Spring HATEOAS一起使用,并且需要使用Spring HATEOAS将enums作为REST API公开.

我尝试了三种方法如下:

@RestController
@RequestMapping(path = "/fruits")
public class FruitResourceController {

    @RequestMapping(method = RequestMethod.GET)
    public Fruit[] fruits() {
        return Fruit.values();
    }

    // NOTE: The `produces` attribute is only for browsers.
    @RequestMapping(path = "/with-resource", method = RequestMethod.GET,
            produces = MediaTypes.HAL_JSON_VALUE)
    public Resource fruitsWithResource() {
        Resource resource = new Resource(Fruit.values());
        Link selfLink = linkTo(methodOn(FruitResourceController.class).fruitsWithResource())
                .withSelfRel();
        resource.add(selfLink);
        return resource;
    }

    // NOTE: The `produces` attribute is only for browsers.
    @RequestMapping(path = "/with-resources", method = RequestMethod.GET,
            produces = MediaTypes.HAL_JSON_VALUE)
    public Resources fruitsWithResources() {
        Resources resources = new Resources(Arrays.asList(Fruit.values()));
        Link selfLink = linkTo(methodOn(FruitResourceController.class).fruitsWithResources())
                .withSelfRel();
        resources.add(selfLink);
        return resources;
    }

}

但我不知道哪个是HATEOAS的正确方法.任何建议或参考将不胜感激.

作为参考,我有以下Spring Data REST配置:

@Configuration
public class SpringDataRestConfig {

    @Bean
    public ResourceProcessor repositoryLinksResourceProcessor() {
        return new ResourceProcessor() {
            @Override
            public RepositoryLinksResource process(RepositoryLinksResource resource) {
                Link fruitsLink = linkTo(methodOn(FruitResourceController.class).fruitsWithResources())
                        .withRel("fruits");
                resource.add(fruitsLink);
                return resource;
            }
        };
    }

}

有关示例项目,请参阅以下内容:

https://github.com/izeye/spring-boot-throwaway-branches/blob/data-jpa-and-rest/src/main/java/com/izeye/throwaway/SpringDataRestConfig.java https://github.com /izeye/spring-boot-throwaway-branches/blob/data-jpa-and-rest/src/main/java/com/izeye/throwaway/FruitResourceController.java

---更新于2016.01.04

使用ALPS(/profile)看起来很容易获得枚举,但我不确定这是一个正确的方法.