两个FeignClient调用同一个服务，启动报错：
The bean ‘engine.FeignClientSpecification’ could not be registered. A bean with that name has already been defined and overriding is disabled.

解决思路：

1. 很明显两个bean冲突了 盲猜两个bean的名称都是由调用的服务名称提供的
2. 于是就name
   
   启动还是报错
   Failed to read candidate component class: file [/Users/coolcorgy/data/项目/management/management-service-api/management-user-api/target/classes/cn/corgy/user/feign/IResourcesClient.class]; nested exception is org.springframework.core.annotation.AnnotationConfigurationException: Different @AliasFor mirror values for annotation [org.springframework.cloud.openfeign.FeignClient] declared on cn.corgy.user.feign.IResourcesClient; attribute 'name' and its alias 'value' are declared with values of [FeignResourcesClient] and [management-user].
3. 很明显改错的 查看源码
   
   如果存在，这将用作 bean 名称而不是名称，但不会用作服务 ID。
   
4. 启动成功