Spring Data Rest与Spring HATEOAS集成

Question

从各种文件和TUT中，我获得并学到了以下几点：

>

Spring HATEOAS用于在我们通过Controller或RESTendpoint返回的实体中创建链接。我们有ResourceSupport来扩展我们的实体或资源包装类来包装我们的实体以创建或添加链接。有几个注释和类可供使用，例如@EnableHyperedaSupport和EntityLinks。

可能有一些问题我还没有探索或了解，但我只是好奇我们如何将SDR结合到HATEOAS链接构建过程中？代表…说话。

EntityBean bean = repository.findByName(name);
Resource<EntityBean> resource = new Resource<EntityBean>(bean);
//JaxRsLinkBuilder.linkTo(TestResource.class).withRel("entity")     // this also works   
//ControllerLinkBuilder.linkTo(TestResource.class).withRel("myRel") // this also works
// I am curious how ControllerLinkBuilder and JaxRSLinkBuilder both are working for JaxRS.  
//Here TestResource is my REST service class. now in below line: 
resource.add(JaxRsLinkBuilder.linkTo(MyRepository.class).withRel("sdf")); //not working
// MyRepository is SDR exposed repository, which I thought should work but not working.
return resource;  

所以，我只想将我公开的REST存储库包含到手动HATEOAS链接构建过程中。。有可能这样做吗？

Answer 1

您应该能够使用Spring-HATEOASResourceProcess来构建链接。

例子：

@Component
public class MyBeanResourceProcessor implements ResourceProcessor<Resource<MyBean>> {

    @Autowired
    private EntityLinks entityLinks;

    public Resource<MyBean> process(Resource<MyBean> resource) {
        MyBean mybean = resource.getContent();

        // Do your linking here using entity class
        //EntityBean bean = repository.findByName(name);
        //Resource<EntityBean> resource = new Resource<EntityBean>(bean);
        // assuming you are linking to a single resource and bean.getId() method... check entitylinks for other methods
        //resource.add(entityLinks.linkForSingleResource(bean.class,bean.getId()).withRel("sdf"));

        return resource;
    }

}