update discover client

modules/admin/src/main/java/com/fire/admin/AdminApplication.java

@@ -2,8 +2,10 @@ package com.fire.admin;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 
 @SpringBootApplication
+@EnableDiscoveryClient
 public class AdminApplication {
 
     public static void main(String[] args) {