带有 RepositoryRestResource-s 和常规控制器的 Spring REST HATEOAS 中的根请求的自定义响应

Posted 2023-02-26

【中文标题】带有 RepositoryRestResource-s 和常规控制器的 Spring REST HATEOAS 中的根请求的自定义响应

【英文标题】：Custom response for root request int the Spring REST HATEOAS with both RepositoryRestResource-s and regular controllers

【发布时间】：2014-11-05 04:03:12

【问题描述】：

假设我有两个存储库：

@RepositoryRestResource(collectionResourceRel = "person", path = "person")
public interface PersonRepository extends PagingAndSortingRepository<Person, Long> 
    List<Person> findByLastName(@Param("name") String name);

和

@RepositoryRestResource(collectionResourceRel = "person1", path = "person1")
public interface PersonRepository1 extends PagingAndSortingRepository<Person1, Long> 
    List<Person1> findByLastName(@Param("name") String name);

使用一个常规控制器：

@Controller
public class HelloController 
    @RequestMapping("/hello")
    @ResponseBody
    public HttpEntity<Hello> hello(@RequestParam(value = "name", required = false, defaultValue = "World") String name) 
        Hello hello = new Hello(String.format("Hello, %s!", name));
        hello.add(linkTo(methodOn(HelloController.class).hello(name)).withSelfRel());
        return new ResponseEntity<>(hello, HttpStatus.OK);
    

现在，http://localhost:8080/ 的回复是：

  "_links" : 
    "person" : 
      "href" : "http://localhost:8080/person?page,size,sort",
      "templated" : true
    ,
    "person1" : 
      "href" : "http://localhost:8080/person1?page,size,sort",
      "templated" : true
    
  

但我想得到这样的东西：

  "_links" : 
    "person" : 
      "href" : "http://localhost:8080/person?page,size,sort",
      "templated" : true
    ,
    "person1" : 
      "href" : "http://localhost:8080/person1?page,size,sort",
      "templated" : true
    ,
    "hello" : 
      "href" : "http://localhost:8080/hello?name=World"
    
  

【参考方案1】：

@Component
public class HelloResourceProcessor implements ResourceProcessor<RepositoryLinksResource> 

    @Override
    public RepositoryLinksResource process(RepositoryLinksResource resource) 
        resource.add(ControllerLinkBuilder.linkTo(HelloController.class).withRel("hello"));
        return resource;
    

基于

http://docs.spring.io/spring-data/rest/docs/current/reference/html/#customizing-sdr.customizing-json-output How to add links to root resource in Spring Data REST?

【参考方案2】：

您需要为您的 Person 资源注册为 Bean 的 ResourceProcessory。见https://***.com/a/24660635/442773

【讨论】：

但我不想更改任何http://localhost:8080/person、http://localhost:8080/person1 或http://localhost:8080/hello 请求的响应。我想更改 http://localhost:8080/ 请求的自动生成响应。