springcloud-------Eureka的服务发现

服务发现可以获取Eureka注册中心里面已经注册的微服务的相关信息，

可以在controll中暴露相关的接口

	@Autowired
	private DiscoveryClient client;
	
	@GetMapping(value = "/dsicovery")
	public Object discovery() {
		List<String> list = client.getServices();
		System.out.println("----------"+ list);
		List<ServiceInstance> serverList = client.getInstances("MICROSERVICECLOUD-DEPT");
		for (ServiceInstance serviceInstance : serverList) {
			System.out.println(serviceInstance.getServiceId()+":" +serviceInstance.getPort());
		}
		return this.client;
	}

在启动类上加上 @EnableDiscoveryClient注解，允许该微微服务被发现

@EnableDiscoveryClient // 允许被外界发现该微服务

访问对应地址，页面输出如下结果

{
services: [
"microservicecloud-dept"
],
localServiceInstance: {
host: "192.168.18.1",
port: 8001,
secure: false,
uri: "http://192.168.18.1:8001",
serviceId: "microservicecloud-dept",
metadata: { }
}
}

控制台打印如下结果

----------[microservicecloud-dept]
MICROSERVICECLOUD-DEPT:8001