如何在春云中通过feign调整负载均衡规则

@FeignClient(name = "service-provider")
public interface ServiceProviderClient {

    @RequestMapping(value = "/api/service", method = RequestMethod.GET)
    String getService();
}

ribbon:
  NFLoadBalancerRuleClassName: com.netflix.loadbalancer.RandomRule

@RestController
public class MyController {

    @Autowired
    private ServiceProviderClient serviceProviderClient;

    @GetMapping("/service")
    public String getService() {
        return serviceProviderClient.getService();
    }
}