升级 Dubbo 到 2.7.1 。目前 Dubbo 引用服务存在 Bug ，所以需要使用 @Autowire 解决下。

admin/admin-service-impl/pom.xml

@@ -29,9 +29,21 @@
         </dependency>
 
         <dependency>
-            <groupId>com.alibaba</groupId>
+            <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.apache.curator</groupId>
+            <artifactId>curator-framework</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.curator</groupId>
+            <artifactId>curator-recipes</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-spring-boot-starter</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>org.mybatis.spring.boot</groupId>