【服務(wù)中心】集群，Eureka Server

【服務(wù)提供者】集群，Eureka Client

【服務(wù)消費(fèi)者】，Eureka Discovery Client(Feign)
3.1 pom文件:

 <dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-web</artifactId>
 </dependency>
 <dependency>
     <groupId>org.springframework.cloud</groupId>
     <artifactId>spring-cloud-starter-openfeign</artifactId>
 </dependency>
 <dependency>
     <groupId>org.springframework.cloud</groupId>
     <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
 </dependency>

3.2 啟動(dòng)類(lèi)&&Service層&&控制層

啟動(dòng)類(lèi):

 @SpringBootApplication
 @EnableFeignClients         //啟動(dòng)Feign
 @EnableDiscoveryClient      //啟動(dòng)Eureka服務(wù)發(fā)現(xiàn)
 public class EurekaFeignApplication {
     public static void main(String[] args) {
         SpringApplication.run(EurekaFeignApplication.class, args);
     }
 }

Service層:

 @FeignClient(value = "eureka-client")   //調(diào)用的服務(wù)名稱(chēng)
 public interface EurekaFeignService {
     @RequestMapping("/info")
     String getInfo();
 }

控制層:

 @RestController
 public class EurekaFeignController {
     @Resource
     private EurekaFeignService eurekaFeignService;
     @RequestMapping("/feignInfo")
     public String feignInfo() {
         String message = eurekaFeignService.getInfo();
         return "獲取的信息:  " + message;
     }
 }

3.3 配置文件yml

 server:
   port: 52620
 spring:
   application:
     name: eureka-discovery-feign
 eureka:
   instance:
     hostname: localhost
     lease-renewal-interval-in-seconds: 5
     lease-expiration-duration-in-seconds: 10
   client:
     service-url:
       defaultZone:  http://localhost:8081/eureka,http://localhost:8082/eureka,http://localhost:803/eureka

啟動(dòng)【服務(wù)消費(fèi)者】工程

訪(fǎng)問(wèn)服務(wù)中心,查看注冊(cè)實(shí)例

訪(fǎng)問(wèn)地址http://localhost:52620/feignInfo，多刷新幾次，查看變化
【服務(wù)消費(fèi)者】完成?。。?/p>