Polish apache#734 : [Samples] Upgrading the latest Service-Introspection features

Author: mercyblitz

dubbo-spring-boot-samples/service-introspection-samples/zookeeper-samples/consumer-sample/src/main/resources/application.yml

@@ -11,6 +11,10 @@ embedded:
     port: 2181
 
 dubbo:
+  application:
+    metadata-type: composite
   registry:
     address: zookeeper://127.0.0.1:${embedded.zookeeper.port}/?registry-type=service
-    file: ${user.home}/dubbo-cache/${spring.application.name}/dubbo.cache
+    file: ${user.home}/dubbo-cache/${spring.application.name}/dubbo.cache
+    use-as-config-center: true
+    use-as-metadata-center: true

dubbo-spring-boot-samples/service-introspection-samples/zookeeper-samples/provider-sample/src/main/resources/application.properties

@@ -6,6 +6,9 @@ zookeeper.server.host = 127.0.0.1
 zookeeper.server.port = 2181
 
 # Dubbo Spring Boot Externalization Configuration
+## "composite" is a new metadata type introduced since 2.7.8
+dubbo.application.metadata-type=composite
+
 ## Base packages to scan Dubbo Component: @org.apache.dubbo.config.annotation.Service
 dubbo.scan.base-packages=org.apache.dubbo.spring.boot.sample.provider.service
 
@@ -19,6 +22,9 @@ dubbo.protocol.port=-1
 
 ## Dubbo Registry
 dubbo.registry.address=zookeeper://${zookeeper.server.host}:${zookeeper.server.port}?registry-type=service
+dubbo.registry.use-as-config-center=true
+dubbo.registry.use-as-metadata-center=true
+
 
 ## DemoService version
 demo.service.version=1.0.0