Dubbo 的 Helloworld

•  前提条件

安装好了 ZooKeeper 作为注册中心

• 服务端

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-3.2.xsd
       http://code.alibabatech.com/schema/dubbo
       http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <!--这个包下的,所有加过特殊注解的类,都被Spring管理-->
    <context:component-scan base-package="org.zln" resource-pattern="**/*ServiceImpl.class"/>

    <!--开启注解注入-->
    <context:annotation-config/>

    <dubbo:application name="providerDemo" />
    <!--ZooKeeper 注册中心-->
    <dubbo:registry protocol="zookeeper" address="127.0.0.1:2181" />
    <!--Dubbo 协议暴露服务的端口-->
    <dubbo:protocol name="dubbo" port="20880" />
    <!--需要暴露的服务接口-->
    <dubbo:service interface="org.zln.service.SayHelloService" ref="sayHelloService"/>

</beans>

• 客户端

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-3.2.xsd
       http://code.alibabatech.com/schema/dubbo
       http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <!--dubbo 消费方名称-->
    <dubbo:application name="consumerDemo" />

    <!--ZooKeeper 注册中心-->
    <dubbo:registry address="zookeeper://127.0.0.1:2181" />
    <!--生成远程服务代理-->
    <dubbo:reference id="sayHelloService" interface="org.zln.service.SayHelloService"/>
</beans>