GateWay调用服务的源码读取步骤

1、org.springframework.cloud.gateway.filter.LoadBalancerClientFilter#filter->
2、org.springframework.cloud.gateway.filter.LoadBalancerClientFilter#choose->
3、org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient#choose->
4、org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient#getServer(com.netflix.loadbalancer.ILoadBalancer, java.lang.Object)->
5、com.netflix.loadbalancer.BaseLoadBalancer#chooseServer->
6、com.netflix.loadbalancer.PredicateBasedRule#choose->
7、com.netflix.loadbalancer.AbstractServerPredicate#chooseRoundRobinAfterFiltering(java.util.List, java.lang.Object)->
(7.1 com.netflix.loadbalancer.AbstractServerPredicate#getEligibleServers(java.util.List, java.lang.Object)
7.2 com.netflix.loadbalancer.ZoneAvoidancePredicate#apply
)
8、com.netflix.loadbalancer.ZoneAwareLoadBalancer#chooseServer->
(8.1 com.netflix.loadbalancer.ZoneAwareLoadBalancer#ZoneAwareLoadBalancer(com.netflix.client.config.IClientConfig, com.netflix.loadbalancer.IRule, com.netflix.loadbalancer.IPing, com.netflix.loadbalancer.ServerList, com.netflix.loadbalancer.ServerListFilter, com.netflix.loadbalancer.ServerListUpdater)
8.2 com.netflix.loadbalancer.DynamicServerListLoadBalancer#DynamicServerListLoadBalancer(com.netflix.client.config.IClientConfig, com.netflix.loadbalancer.IRule, com.netflix.loadbalancer.IPing, com.netflix.loadbalancer.ServerList, com.netflix.loadbalancer.ServerListFilter, com.netflix.loadbalancer.ServerListUpdater)
8.3、com.netflix.loadbalancer.DynamicServerListLoadBalancer#restOfInit
8.4 com.netflix.loadbalancer.DynamicServerListLoadBalancer#enableAndInitLearnNewServersFeature(serverListUpdater.start(updateAction);)
8.5 com.netflix.loadbalancer.PollingServerListUpdater#start
8.6 com.netflix.loadbalancer.DynamicServerListLoadBalancer#updateListOfServers
8.7 com.alibaba.cloud.nacos.ribbon.NacosServerList#getUpdatedListOfServers
8.8 com.netflix.loadbalancer.DynamicServerListLoadBalancer#updateAllServerList
)
9、com.netflix.loadbalancer.RoundRobinRule#choose(com.netflix.loadbalancer.ILoadBalancer, java.lang.Object)

同步是基于LoadBalancerClientFilter
异步是基于ReactiveLoadBalancerClientFilter