(1) 连通性：
(2) 健状性：
(3) 伸缩性：
package com.alibaba.hello.api; public interface HelloService{ String sayHello(String name); }
package com.alibaba.hello.impl; import com.alibaba.hello.api.HelloService; public class HelloServiceImpl implements HelloService{ public String sayHello(String name){ return "Hello " + name; } }
<?xml version="1.0" encoding="UTF-8"?> <beans ......> <!-- Application name --> <dubbo:application name="hello-world-app" /> <!-- registry address, used for service to register itself --> <dubbo:registry address="multicast://224.5.6.7:1234" /> <!-- expose this service through dubbo protocol, through port 2 0 8 8 0 --> <dubbo:protocol name="dubbo" port="2 0 8 8 0" /> <!-- which service interface do we expose? --> <dubbo:service interface="com.alibaba.hello.api.HelloService" ref="helloService" /> <!-- designate implementation --> <bean id="helloService" class="com.alibaba.hello.impl.HelloServiceImpl" /> </beans>
import org.springframework.context.support.ClassPathXmlApplicationContext; public class Provider { public static void main(String[] args) { ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"provider.xml"}); //启动成功，监听端口为2 0 8 8 0 System.in.read(); // 按任意键退出 } }
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns=......> <!-- consumer application name --> <dubbo:application name="consumer-of-helloworld-app" /> <!-- registry address, used for consumer to discover services --> <dubbo:registry address="multicast://224.5.6.7:1234" /> <!-- which service to consume? --> <dubbo:reference id="helloService" interface="com.alibaba.hello.api.HelloService" /> </beans>
import org.springframework.context.support.ClassPathXmlApplicationContext; import com.alibaba.hello.api.HelloService; public class Consumer { public static void main(String[] args) { ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"consumer.xml"}); HelloService helloService = (HelloService)context.getBean("helloService"); // get service invocation proxy String hello = helloService.sayHello("world"); // do invoke! System.out.println( hello ); // cool, how are you~ } }
转自：
http://www.oschina.net/p/dubbo
http://baike.baidu.com/view/6901431.htm#2
原文：http://www.cnblogs.com/olmlo/p/3543725.html