Spring Cloud根据服务名获取服务的ip端口问题

@Configuration
public class ApplicationContextBean {
    @Bean
    @LoadBalanced
    public RestTemplate getRestTemplate() {
        return new RestTemplate();
    }
}

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-loadbalancer</artifactId>
</dependency>

@Autowired
private LoadBalancerClient loadBalancerClient;

@GetMapping("/getServiceInstance")
public ServiceInstance getServiceInstance() {
    ServiceInstance serviceInstance = loadBalancerClient.choose("nacos-payment-provider");
    System.out.println(serviceInstance.getHost()); // ip
    System.out.println(serviceInstance.getPort()); // 端口
    System.out.println(serviceInstance.getInstanceId()); // 实例id
    System.out.println(serviceInstance.getServiceId()); // 服务id
    System.out.println(serviceInstance.getMetadata()); // 与服务实例关联的元数据
    System.out.println(serviceInstance.getScheme());    // 返回服务实例的方案
    System.out.println(serviceInstance.getUri().toString()); // 返回服务的uri地址
    return serviceInstance;
}

@Resource
private DiscoveryClient discoveryClient;

@GetMapping("/getServiceInstanceList")
public List<ServiceInstance> getServiceInstanceList() {
	// 根据服务名称查找所有的实例
    return discoveryClient.getInstances("nacos-payment-provider");
}

@Autowired
private NacosServiceManager nacosServiceManager;

@Autowired
private NacosDiscoveryProperties nacosDiscoveryProperties;
    
@GetMapping("/nacos")
public List<Instance> getGatewayAddress() {
    String res = null;
    try {
        NamingService namingService = nacosServiceManager.getNamingService(nacosDiscoveryProperties.getNacosProperties());
        List<Instance> allInstances = namingService.getAllInstances("nacos-payment-provider");
        return allInstances;
    } catch (NacosException e) {
        e.printStackTrace();
        return null;
    }
}