dubbo-examples/src/main/java/com/alibaba/dubbo/examples/remoting/heartbeat/heartbeat-provider.xml

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<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
       http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <dubbo:application name="heartbeat-provider"/>

    <!--<dubbo:registry address="127.0.0.1:9090"/>-->

    <dubbo:protocol name="dubbo" port="20880" />

    <bean id="helloService" class="com.alibaba.dubbo.examples.remoting.heartbeat.impl.HelloServiceImpl"/>

    <dubbo:service registry="N/A" interface="com.alibaba.dubbo.examples.remoting.heartbeat.api.HelloService" ref="helloService">
        <dubbo:parameter key="heartbeat" value="3000" />
    </dubbo:service>

</beans>