基本路径未出现在ResourceProcessor自定义链接中 [英] Base path doesn't appear in ResourceProcessor custom links

问题描述

在Spring Data REST中，我使用 ResourceProcessor 创建自定义链接：

In Spring Data REST I'm creating custom links using a ResourceProcessor:

@Component
public class ServiceInstanceProcessor
        implements ResourceProcessor<Resource<ServiceInstance>> {

    @Override
    public Resource<ServiceInstance> process(Resource<ServiceInstance> resource) {
        Long id = resource.getContent().getId();
        ServiceInstanceController controller =
                methodOn(ServiceInstanceController.class);

        resource.add(linkTo(controller.getNodeSummary(id))
                .withRel("nodeSummary"));
        resource.add(linkTo(controller.getHealthBreakdown(id))
                .withRel("healthBreakdown"));
        resource.add(linkTo(controller.getRotationBreakdown(id))
                .withRel("rotationBreakdown"));
        return resource;
    }
}

但是生成的链接不包括基本路径，即使我已将控制器标记为 @BasePathAwareController ，即使默认链接包含基本路径：

However the generated links don't include the base path, even though I've marked the controller as @BasePathAwareController and even though the default links do include the base path:

{
  ...

  "_links" : {
  "self" : {
    "href" : "http://localhost:8080/api/serviceInstances/101"
  },
  "serviceInstance" : {
    "href" : "http://localhost:8080/api/serviceInstances/101{?projection}",
    "templated" : true
  },
  "nodeSummary" : {
    "href" : "http://localhost:8080/serviceInstances/101/nodeSummary"
  },
  "healthBreakdown" : {
    "href" : "http://localhost:8080/serviceInstances/101/healthBreakdown"
  },
  "rotationBreakdown" : {
    "href" : "http://localhost:8080/serviceInstances/101/rotationBreakdown"
  },

  ...
}

}

是否有我需要做些什么才能让基本路径出现在链接中？

Is there anything else I need to do to get the base path to appear in the links?

推荐答案

我想它与bug有关< a href =https://github.com/spring-projects/spring-hateoas/issues/434 =nofollow noreferrer> ControllerLinkBuilder不会将Spring Data REST的基本路径考虑在内，而且自定义控制器+更改的基本路径未显示在HAL中

作为解决方法我接下来做：

As workaround I do next:

@Autowired
private final RepositoryRestConfiguration config;

private Link fixLinkSelf(Object invocationValue) {
    return fixLinkTo(invocationValue).withSelfRel();
}

@SneakyThrows
private Link fixLinkTo(Object invocationValue) {
    UriComponentsBuilder uriComponentsBuilder = linkTo(invocationValue).toUriComponentsBuilder();
    URL url = new URL(uriComponentsBuilder.toUriString());
    uriComponentsBuilder.replacePath(config.getBasePath() + url.getPath());
    return new Link(uriComponentsBuilder.toUriString());
}

用法与 linkTo ：

resources.add(fixLinkSelf(methodOn(VoteController.class).history()));    
resources.add(fixLinkTo(methodOn(VoteController.class).current()).withRel("current"));

基于addPath当前请求的简单案例的其他解决方法：

Other workaround for simple case based on current request with addPath:

new Link(ServletUriComponentsBuilder.fromCurrentRequest().path(addPath).build().toUriString())

这篇关于基本路径未出现在ResourceProcessor自定义链接中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！