1. @Autowired
2. private DiscoveryClient discoveryClient;

@GetMapping(value = "/payment/discovery")
    public Object getDiscovery(){
        List<String> services = discoveryClient.getServices();
        for (String element : services) {
            log.info("======element:"+element);
        }
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        for (ServiceInstance instance : instances) {
            log.info(instance.getServiceId() + "	" + instance.getHost() + "	"
                    + instance.getPort() + "	"+ instance.getUri());
        }
        return this.discoveryClient;
    }