4.0.0 vip.xumy.learn spring-cloud-demo 1.0.0.RELEASE eureka-client-ribbon 1.0.0 eureka-client-ribbon org.springframework.cloud spring-cloud-starter-netflix-eureka-client org.springframework.boot spring-boot-starter-web org.springframework.cloud spring-cloud-starter-netflix-ribbon org.springframework.cloud spring-cloud-starter-netflix-hystrix