eureka之服务发现 DiscoveryClient

// import org.springframework.cloud.client.discovery.DiscoveryClient;    
@Autowired
    private DiscoveryClient discoveryClient;

    @RequestMapping("/eureka/discovery")
    public BaseResult discovery() {
        String description = discoveryClient.description();
        List<String> services = discoveryClient.getServices();
        for (String service : services) {
            List<ServiceInstance> instances = discoveryClient.getInstances(service);
            String instancesStr = JSONUtil.toJsonPrettyStr(instances);
            System.out.println("instancesStr== " + instancesStr);
        }
        String servicesStr = JSONUtil.toJsonPrettyStr(services);
        return sendSuccess("description:" + description + "    servicesStr:" + servicesStr + " :: serverPort=" + serverPort);
    }