原文地址：https://www.cnblogs.com/UncleYong/p/10732747.html
接口需求
客户端输入uncleyong（当然，也可以输入其它字符串），服务端返回hello uncleyong
开发环境
jdk + idea + maven + zookeeper
idea安装
maven安装
common开发
idea中创建模块dubbo-common
存放公共的实体类、接口
package com.uncleyong.dubbotest.service;
public interface SayHelloToClient {
public String sayHello(String name);
}
然后mvn install打包，供provider及consumer在pom文件中引包
provider开发
idea中创建模块dubbo_provider
创建实现类
package com.uncleyong.dubbotest.service.impl;
import com.uncleyong.dubbotest.service.SayHelloToClient;
public class SayHelloToClientImpl implements SayHelloToClient {
public String sayHello(String name){
System.out.println("from client ：" + name);
return "hello, " + name;
}
}
配置文件，provider.xml
<?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://dubbo.apache.org/schema/dubbo"
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">
<dubbo:application name="dubbo-provider"/>
<!-- 使用zookeeper广播注册中心暴露服务地址 -->
<dubbo:registry address="zookeeper://127.0.0.1:2181"/>
<!-- 用dubbo协议在20880端口暴露服务 -->
<dubbo:protocol name="dubbo" port="20888"/>
<!-- 声明需要暴露的服务接口 -->
<dubbo:service interface="com.uncleyong.dubbotest.service.SayHelloToClient" ref="sayhellotoclient"/>
<!-- 和本地bean一样实现服务 -->
<bean id="sayhellotoclient" class="com.uncleyong.dubbotest.service.impl.SayHelloToClientImpl"/>
</beans>
创建主运行文件，ProviderMain
package com.uncleyong.dubbotest.main;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class ProviderMain {
public static void main(String[] args) throws Exception {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
new String[] {"provider.xml"});
context.start();
System.out.println("注册成功，如想退出，按任意键退出");
System.in.read(); // 按任意键退出
}
}
consumer开发
idea中创建模块dubbo_consumer
主运行文件
package com.uncleyong.dubbotest.main;
import com.uncleyong.dubbotest.service.SayHelloToClient;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import java.util.Scanner;
public class ConsumerMain {
public static void main(String[] args) throws Exception {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
new String[] {"consumer.xml"});
context.start();
// 获取远程服务代理
SayHelloToClient say = (SayHelloToClient) context.getBean("sayhellotoclient");
// 执行远程方法
String res = say.sayHello("UncleYong");
// 显示调用结果
System.out.println(res);
new Scanner(System.in).next();
}
}
配置文件，consumer.xml
<?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://dubbo.apache.org/schema/dubbo"
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">
<dubbo:application name="dubbo-consumer"/>
<!-- 使用zookeeper广播注册中心暴露发现服务地址 -->
<dubbo:registry address="zookeeper://127.0.0.1:2181"/>
<!-- 生成远程服务代理，可以和本地bean一样使用demoService -->
<dubbo:reference id="sayhellotoclient" interface="com.uncleyong.dubbotest.service.SayHelloToClient"/>
</beans>
运行结果及项目源码
先启动zookeeper，进入zookeeper的bin目录，点击【zkServer.cmd】
启动provider
服务注册成功
启动consumer，可以看到输出了结果
在provider端，也可以看到客户端发过来的消息
至此，开发完成。
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