目录(?)[+]

所需环境

zookeeper作为dubbo的注册中心，dubbo服务提供方和消费方都需要在zookeeper注册中心注册。
可参考：http://blog.csdn.net/jingyangv587/article/details/78901508
注意：启动后，请勿关闭！

开始搭建

1. 服务提供方和消费方都需要的包（这里我新建的maven工程为pom工程，将共同的项目依赖写到pom.xml中）

• 总的项目结构为
  

• pom.xml文件内容为

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.test</groupId><artifactId>dubbo-demo</artifactId><version>0.0.1-SNAPSHOT</version><packaging>pom</packaging><properties><motan.version>0.3.0</motan.version><!-- 在阿里巴巴内部广泛使用的GA版本为：2.4.9，强烈推荐此版本 --><dubbo.version>2.5.3</dubbo.version><dubbox.version>2.8.4</dubbox.version><spring.version>4.3.6.RELEASE</spring.version><java.version>1.7</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>com.alibaba</groupId><artifactId>dubbo</artifactId><version>2.5.3</version><exclusions><exclusion><groupId>org.springframework</groupId><artifactId>spring</artifactId></exclusion></exclusions></dependency><dependency><groupId>com.github.sgroschupf</groupId><artifactId>zkclient</artifactId><version>0.1</version></dependency><!-- spring相关 --><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aop</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-orm</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context-support</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jms</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjrt</artifactId><version>1.6.11</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.6.11</version></dependency></dependencies><modules><module>demo-api</module><module>dubbo-consumer</module><module>dubbo-provider</module></modules>
</project>

2. 在demo-api中定义服务接口（注意服务提供方和消费方都需要依赖这个项目）

package com.test;public interface DemoService{  String sayHello(String name);
}

3. 服务提供方实现

• 项目结构
  
• 实现接口

package com.test;
import org.springframework.stereotype.Service;import com.test.DemoService;
@Service("demoService")
public class DemoServiceImpl implements DemoService{@Overridepublic String sayHello(String name) {// TODO Auto-generated method stubreturn name; }
}

• 声明暴露服务：

<?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/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://code.alibabatech.com/schema/dubbohttp://code.alibabatech.com/schema/dubbo/dubbo.xsd"><!-- 提供方应用信息，用于计算依赖关系 -->  <dubbo:application name="dubbo_provider"  />  <!-- 使用zookeeper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="20880" />  <!-- 声明需要暴露的服务接口 -->  <dubbo:service interface="com.test.DemoService" ref="demoService" />
</beans>

• 在springmvc.xml中扫描service注解并将dubbo-provider.xml中的相关的dubbo配置引入进来

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop"xmlns:context="http://www.springframework.org/schema/context"xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/aop   http://www.springframework.org/schema/aop/spring-aop-4.0.xsd   http://www.springframework.org/schema/beans   http://www.springframework.org/schema/beans/spring-beans-4.0.xsd   http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.0.xsd   http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"default-autowire="byName"><aop:aspectj-autoproxy /><context:component-scan base-package="com.test" /><import resource="classpath:dubbo-provider.xml" />
</beans>

• 加载Spring配置，启动服务：

package com.test;import java.io.IOException;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Test {public static void main(String[] args) throws Exception {ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("classpath:springmvc.xml");context.start();System.out.println("Dubbo provider start...");try {System.in.read();   // 按任意键退出} catch (IOException e) {e.printStackTrace();} }
}

4. 服务消费者实现

• 项目结构
  
• 在dubbo-consumer.xml中声明所所需要消费的服务

<?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    http://www.springframework.org/schema/beans/spring-beans.xsd    http://code.alibabatech.com/schema/dubbo    http://code.alibabatech.com/schema/dubbo/dubbo.xsd ">          <!-- 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="dubbo_consumer" />       <!-- 使用multicast广播注册中心暴露发现服务地址 -->    <dubbo:registry  protocol="zookeeper" 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="demoService" interface="com.test.DemoService" />
</beans>   

• 在springmvc.xml中扫描service注解并将dubbo-consumer.xml中的相关的dubbo配置引入进来

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop"xmlns:context="http://www.springframework.org/schema/context"xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/aop   http://www.springframework.org/schema/aop/spring-aop-4.0.xsd   http://www.springframework.org/schema/beans   http://www.springframework.org/schema/beans/spring-beans-4.0.xsd   http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.0.xsd   http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"default-autowire="byName"><aop:aspectj-autoproxy /><context:component-scan base-package="com.test" /><import resource="classpath:/dubbo-consumer.xml" />
</beans>

• 加载Spring配置，调用服务：

package com.test;import java.io.IOException;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Test {public static void main(String[] args) {ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "classpath:springmvc.xml" });context.start();DemoService demoService = (DemoService) context.getBean("demoService");System.out.println(demoService.sayHello("哈哈哈"));try {System.in.read();} catch (IOException e) {e.printStackTrace();}}
}

• 如果出现以下结果则调用成功
  
• 通过dubbo-admin管理后台可以看到服务的提供方与消费方
  具体搭建可参考博客：http://blog.csdn.net/jingyangv587/article/details/78904369
  提供方：
  
  消费者：
  

完整项目的git地址：https://gitee.com/jingyang3877/dubbo-demo.git

参考博客：https://www.cnblogs.com/Javame/p/3632473.html