provider的SecondService interface 在api里面定义
在provier的xml配置文件中。
<!-- service implementation, as same as regular local bean -->
<bean id="demoService" class="com.alibaba.dubbo.demo.provider.DemoServiceImpl"/>
<bean id="secondService" class="com.alibaba.dubbo.demo.provider.SecondServiceImpl"/>
<!-- declare the service interface to be exported -->
<dubbo:service interface="com.alibaba.dubbo.demo.DemoService" ref="demoService"/>
<dubbo:service interface="com.alibaba.dubbo.demo.SecondService" ref="secondService"/>
启动运行provider.java,就会将配置的service都实例化,整个应用就是项目名demo-provider
在demo-provider点进去,就是这个provider提供的所有service