update eureka code to boot 2

spring-cloud/spring-cloud-eureka/spring-cloud-eureka-feign-client/src/main/java/com/baeldung/spring/cloud/feign/client/FeignClientApplication.java

@@ -3,14 +3,12 @@ package com.baeldung.spring.cloud.feign.client;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
-import org.springframework.cloud.netflix.feign.EnableFeignClients;
+import org.springframework.cloud.openfeign.EnableFeignClients;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;
 
 @SpringBootApplication
-@EnableEurekaClient
 @EnableFeignClients
 @Controller
 public class FeignClientApplication {

spring-cloud/spring-cloud-eureka/spring-cloud-eureka-feign-client/src/main/java/com/baeldung/spring/cloud/feign/client/GreetingClient.java

@@ -1,8 +1,10 @@
 package com.baeldung.spring.cloud.feign.client;
 
-import com.baeldung.spring.cloud.eureka.client.GreetingController;
-import org.springframework.cloud.netflix.feign.FeignClient;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.RequestMapping;
 
 @FeignClient("spring-cloud-eureka-client")
-public interface GreetingClient extends GreetingController {
+public interface GreetingClient {
+    @RequestMapping("/greeting")
+    String greeting();
 }