add some feign test with and without eureka

feign/src/main/java/demo/FeignClientApplication.java

@@ -0,0 +1,27 @@
+package demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.cloud.netflix.feign.FeignClient;
+import org.springframework.cloud.netflix.feign.FeignClientScan;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+
+@Configuration
+@ComponentScan
+@EnableAutoConfiguration
+@FeignClientScan
+public class FeignClientApplication {
+	
+	public static void main(String[] args) {
+        SpringApplication.run(FeignClientApplication.class, args);
+    }
+}
+
+@FeignClient(value = "example.com", loadbalance = false)
+interface RestClient {
+	@RequestMapping(value="/", method=RequestMethod.GET)
+	String hello();
+}