服务发现Discovery

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    @Resource
    private DiscoveryClient discoveryClient;

    @GetMapping(value = "/payment/discovery")
    public Object discovery()
    {
        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()+"\t"+instance.getHost()+"\t"+instance.getPort()+"\t"+instance.getUri());
        }

        return this.discoveryClient;
    }

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