引言

对于注册进 eureka里面的微服务,可以通过服务发现来获得该服务的信息

修改支付服务8091的controller

@Slf4j
@RestController
public class PaymentController {
    @Resource
    PaymentService paymentService;
    @Value("${server.port}")
    private String SERVER_PORT;
    @Resource
    DiscoveryClient discoveryClient;
    @GetMapping("/payment/discovery")
    public Object discovery() {
        // 获取所有注册的服务名
        List<String> services = discoveryClient.getServices();
        for (String service : services) {
            log.info("注册的服务 : " +service);
        }
        // 获取某个注册服务的实例信息
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVER");
        log.info("服务id\t\t\t\t\t端口号\t\t主机\t\turl");
        for (ServiceInstance instance : instances) {
            log.info(instance.getServiceId() + "\t" + instance.getPort() + "\t" +
                    instance.getHost() + "\t" + instance.getUri());
        }
        return this.discoveryClient;
    }
}

修改启动类

@SpringBootApplication
@EnableEurekaClient
@EnableDiscoveryClient
public class PaymentMain8091 {
    public static void main(String[] args) {
        SpringApplication.run(PaymentMain8091.class,args);
    }
}