serviceB
ribbon
http通信组件
ServiceA ->192.168.31.107:8080192.168.31.121:8080
ServiceA ->192.168.31.107:8080
serviceA192.168.31.107:8080
eureka-server
http://192.168.31.107:8080/sayHello/leo
IRule
eureka-client
ILoadBalancer
通用ServiceA
IPing
RestTemplate
serviceA192.168.31.121:8080
通过ServiceA找机器列表
