Description:
The bean xxx.FeignClientSpecification', defined in null, could not be registered. A bean with that name has already been defined in null and overriding is disabled.
Action:
Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true
解决办法：
Feign的注册，有同名的feign的名字重复注册，相同的name也就是跨服务调用，同一个服务的接口，不能分散的写在多个接口类中，要放到同一个借口类中定义调用。