SpringCloud LoadBalancer自定义负载均衡器使用解析

// 负载均衡的标志性接口，继承ReactorLoadBalancer接口
// 本接口无任何接口增强，仅仅作为一个标志性接口。
public interface ReactorServiceInstanceLoadBalancer extends ReactorLoadBalancer<ServiceInstance> 
// 在Spring Cloud高版本中大部分组件采用了Reacotr框架（有一说一，阅读性极差！！）
// 这里定义了一个选择的抽象方法。
public interface ReactorLoadBalancer<T> extends ReactiveLoadBalancer<T> {
	Mono<Response<T>> choose(Request request);
	default Mono<Response<T>> choose() {
		return choose(REQUEST);
	}
}

@LoadBalancerClient(value = "deptmanagecloud-provider", configuration = MyConfig.class)
public class MyConfig {
    // 配置负载均衡策略
    @Bean
    public ReactorLoadBalancer<ServiceInstance> myLB(Environment environment, LoadBalancerClientFactory loadBalancerClientFactory) {
        String name = environment.getProperty(LoadBalancerClientFactory.PROPERTY_NAME);
        return new MyLB(
                loadBalancerClientFactory.getLazyProvider(name, ServiceInstanceListSupplier.class));
    }
}

@LoadBalancerClient(value = "deptmanagecloud-provider", configuration = MyConfig.class)
public class MyConfig {
    // 配置负载均衡策略
    @Bean
    public ReactorLoadBalancer<ServiceInstance> myLB(Environment environment, LoadBalancerClientFactory loadBalancerClientFactory) {
        String name = environment.getProperty(LoadBalancerClientFactory.PROPERTY_NAME);
        return new MyLB(
                loadBalancerClientFactory.getLazyProvider(name, ServiceInstanceListSupplier.class));
    }
}