Feign+Ribbon源码

FeignClientFactoryBean加了注解的bean代理工厂

EnableFeignClients

@AutoConfigureBeforeLoadBalancerAutoConfiguration

AwareImportBeanDefinitionRegistrar

LoadBalancerClient

registerBeanDefinitions

@Import(FeignClientsRegistrar.class)

registerFeignClients

Feign可以理解为高级Httpclient，可以较为友好的实现API统一管理底层也依赖Ribbon去做客户端负载均衡

RibbonAutoConfiguration@Bean

LoadBalancerFeignClientexcute()

http request