<dubbo:application name="hello-world" />
   <dubbo:registry address="zookeeper://127.0.0.1:2181" />  
   <dubbo:protocol name="$serviceDef.type" port="8080" server="servlet" contextpath="services"/>
   <!-- Service interface Concurrent Control -->
   <dubbo:service interface="$serviceDef.getPropertyMap().get('interface')"
		ref="$serviceDef.id" executes="10" />
    <!-- designate implementation -->
	<bean id="$serviceDef.id" class="$serviceDef.getPropertyMap().get('class')" />