Eine verteilte Service-Framework-Dubbo-Instanz

package com.mm.service;public interface WeatherService {public String getMessage(String city);
}

package com.mm.service.impl;import com.mm.service.WeatherService;public class WeatherServiceImpl implements WeatherService{

    @Overridepublic String getMessage(String city) {return city+"天气晴朗，局部有阵雨";
    }

}

<?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:dubbo="http://code.alibabatech.com/schema/dubbo"xsi:schemaLocation="http://www.springframework.org/schema/beans                        ">
 
    <!-- 提供方应用信息，用于计算依赖关系 -->
    <dubbo:application name="mm-weather"  />
 
    <!-- 使用multicast广播注册中心暴露服务地址 -->
    <dubbo:registry address="multicast://224.5.6.7:1234" />
 
    <!-- 用dubbo协议在20880端口暴露服务 -->
    <dubbo:protocol name="dubbo" port="20880" />
 
    <!-- 声明需要暴露的服务接口 -->
    <dubbo:service interface="com.mm.service.WeatherService" ref="weatherService" />
 
    <!-- 和本地bean一样实现服务 -->
    <bean id="weatherService" class="com.mm.service.impl.WeatherServiceImpl" />
 
</beans>

package com.mm.main.dubbo;import java.io.IOException;import org.springframework.context.support.ClassPathXmlApplicationContext;public class DubboProvider {public static void main(String[] args) throws IOException{
         ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"config/provider.xml"});
         context.start();
         System.in.read(); // 按任意键退出    }
}

<?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:dubbo="http://code.alibabatech.com/schema/dubbo"xsi:schemaLocation="http://www.springframework.org/schema/beans                        ">
 
    <!-- 消费方应用名，用于计算依赖关系，不是匹配条件，不要与提供方一样 -->
    <dubbo:application name="mm-weather-consumer"  />
 
    <!-- 使用multicast广播注册中心暴露发现服务地址 -->
    <dubbo:registry address="multicast://224.5.6.7:1234" />
 
    <!-- 生成远程服务代理，可以和本地bean一样使用demoService -->
    <dubbo:reference id="weatherService" interface="com.mm.service.WeatherService" />
 
</beans>

package com.mm.main.dubbo;import java.io.IOException;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.mm.service.WeatherService;public class DubboConsumer {public static void main(String[] args) throws IOException{
         ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"config/consumer.xml"});
         WeatherService  demoService = (WeatherService )context.getBean("weatherService"); // 获取远程服务代理 String hello = demoService.getMessage("北京"); // 执行远程方法 System.out.println( hello ); // 显示调用结果    }
}