Spring HATEOAS
如果开发利用超媒体的 RESTful API，则 Spring Boot 会为 Spring HATEOAS 提供自动配置，它适用于大多数应用程序。自动配置消除了使用 @EnableHypermediaSupport 的需要，并注册了许多 bean 以简化基于超媒体的应用程序的构建，包括一个 LinkDiscoverers （用于客户端支持）和一个配置为以所需表示正确编组响应的 ObjectMapper 。通过设置各种 spring.jackson.* 属性或（如果存在则）通过 Jackson2ObjectMapperBuilder bean 自定义 ObjectMapper 。
If you develop a RESTful API that makes use of hypermedia, Spring Boot provides auto-configuration for Spring HATEOAS that works well with most applications.
The auto-configuration replaces the need to use @EnableHypermediaSupport and registers a number of beans to ease building hypermedia-based applications, including a LinkDiscoverers (for client side support) and an ObjectMapper configured to correctly marshal responses into the desired representation.
The ObjectMapper is customized by setting the various spring.jackson.* properties or, if one exists, by a Jackson2ObjectMapperBuilder bean.
可以使用 @EnableHypermediaSupport 控制 Spring HATEOAS 的配置。请注意，这样做会禁用先前描述的 ObjectMapper 自定义。
You can take control of Spring HATEOAS’s configuration by using @EnableHypermediaSupport.
Note that doing so disables the ObjectMapper customization described earlier.
spring-boot-starter-hateoas 适用于 Spring MVC，不应与 Spring WebFlux 结合使用。为了在 Spring WebFlux 中使用 Spring HATEOAS，可以添加对 org.springframework.hateoas:spring-hateoas 和 spring-boot-starter-webflux 的直接依赖。
spring-boot-starter-hateoas is specific to Spring MVC and should not be combined with Spring WebFlux.
In order to use Spring HATEOAS with Spring WebFlux, you can add a direct dependency on org.springframework.hateoas:spring-hateoas along with spring-boot-starter-webflux.
默认情况下，接受 application/json 的请求会收到 application/hal+json 响应。要禁用此行为，请将 configprop:spring.hateoas.use-hal-as-default-json-media-type[] 设置为 false ，并定义一个 HypermediaMappingInformation 或 HalConfiguration 以配置 Spring HATEOAS 以满足您的应用程序及其客户端的需求。
By default, requests that accept application/json will receive an application/hal+json response.
To disable this behavior set configprop:spring.hateoas.use-hal-as-default-json-media-type[] to false and define a HypermediaMappingInformation or HalConfiguration to configure Spring HATEOAS to meet the needs of your application and its clients.