1.通过IRule实现修改负载均衡规则

java
@MapperScan("cn.itcast.order.mapper")
@SpringBootApplication
public class OrderApplication {

    public static void main(String[] args) {
        SpringApplication.run(OrderApplication.class, args);
    }

    @Bean
    @LoadBalanced
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }

    @Bean
    public IRule randomRule(){
        return new RandomRule();
    }
}

2.饥饿加载

config
ribbon:
  eager-load:
    enabled: true #开启饥饿加载
    clients:  # 指定饥饿加载的服务名称
      - userservice