spring cloud eureka 消费端

EurekaClient

@Qualifier("eurekaClient")@Autowiredprivate EurekaClient eurekaClient;public String dataServiceUrlByEurekaClient() {    InstanceInfo instance = eurekaClient.getNextServerFromEureka("spring-data-demo", false);    return instance.getHomePageUrl();}

DiscoveryClient

@Autowiredprivate DiscoveryClient discoveryClient;public String dataServiceUrlByDiscoveryClient() {    List list = discoveryClient.getInstances("spring-data-demo");    if (list != null && list.size() > 0 ) {        return String.valueOf(list.get(0).getUri());    }    return null;}

RestTemplate

@Configurationpublic class RestTemplateConfiguration {    @Bean    @LoadBalanced    RestTemplate restTemplate(){        return new RestTemplate();    }}

@Autowiredprivate RestTemplate restTemplate;@GetMapping("/restTemplateTest")public String restTemplateTest(){        String str = restTemplate.getForObject("http://data-demo/demo/hello", String.class);        return str; }