dubbo-samples-mock/src/main/resources/spring/mock-provider.xml

<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
       xmlns="http://www.springframework.org/schema/beans"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd">

    <!-- provider's application name, used for tracing dependency relationship -->
    <dubbo:application name="mock-demo-provider"/>

    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>

    <dubbo:provider token="true"/>

    <!-- use dubbo protocol to export service on port 20880 -->
    <dubbo:protocol name="dubbo" port="20880"/>

    <!-- service implementation, as same as regular local bean -->
    <bean id="demoService" class="org.apache.dubbo.samples.mock.impl.DemoServiceImpl"/>

    <!-- declare the service interface to be exported -->
    <dubbo:service interface="org.apache.dubbo.samples.mock.api.DemoService" ref="demoService"/>

</beans>