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springcloud

@LoadBalancerClients​

是 Spring Cloud Ribbon 提供的注解，它用于在服务调用时进行负载均衡。这个注解用于声明多个服务的负载均衡配置，每个服务都对应着一个@LoadBalancerClient 注解。其中，name 属性表示服务的名称，configuration 属性表示该服务所使用的负载均衡策略。在这个例子中，所有服务都使用的是 GatewayConfig 这个类中定义的负载均衡策略。

@Configuration
@LoadBalancerClients(value = {
        //远程服务名称，比如订单服务、商品服务。如果哪个服务想要使用此规则，在这边添加即可
        @LoadBalancerClient(name = "th", configuration = GatewayConfig.class),
        @LoadBalancerClient(name = "ovisin", configuration = GatewayConfig.class),
        @LoadBalancerClient(name = "ivantse", configuration = GatewayConfig.class),
        @LoadBalancerClient(name = "id-caon", configuration = GatewayConfig.class),
        @LoadBalancerClient(name = "v", configuration = GatewayConfig.class),
        @LoadBalancerClient(name = "mprs", configuration = GatewayConfig.class),
        @LoadBalancerClient(name = "ectcharge", configuration = GatewayConfig.class),
        @LoadBalancerClient(name = "re", configuration = GatewayConfig.class),
        @LoadBalancerClient(name = "nan-health", configuration = GatewayConfig.class),
        @LoadBalancerClient(name = "artance", configuration = GatewayConfig.class)
}
)
public class GatewayConfig {
    @Bean
    public ReactorLoadBalancer<ServiceInstance> reactorServiceInstanceLoadBalancer(Environment environment,
                                                                                   LoadBalancerClientFactory loadBalancerClientFactory) {
        String name = environment.getProperty(LoadBalancerClientFactory.PROPERTY_NAME);
        return new LockRemoteIpLoadBalancer(
                loadBalancerClientFactory.getLazyProvider(name, ServiceInstanceListSupplier.class), name);
    }
}

负载均衡策略​

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