服務端（dubbo-server）

1. pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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.lwb</groupId><artifactId>dubbo-server</artifactId><version>1.0-SNAPSHOT</version><packaging>jar</packaging><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><!-- spring begin --><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>4.1.6.RELEASE</version></dependency><!-- spring end --><!-- dubbo begin --><dependency><groupId>com.alibaba</groupId><artifactId>dubbo</artifactId><version>2.5.3</version></dependency><!-- dubbo end --><!-- 注冊中心zookeeper begin --><dependency><groupId>org.apache.zookeeper</groupId><artifactId>zookeeper</artifactId><version>3.3.6</version></dependency><!-- 注冊中心zookeeper end --><!-- log begin --><dependency><groupId>commons-logging</groupId><artifactId>commons-logging</artifactId><version>1.1.1</version></dependency><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.15</version><exclusions><exclusion><groupId>com.sun.jdmk</groupId><artifactId>jmxtools</artifactId></exclusion><exclusion><groupId>com.sun.jmx</groupId><artifactId>jmxri</artifactId></exclusion><exclusion><artifactId>jms</artifactId><groupId>javax.jms</groupId></exclusion><exclusion><artifactId>mail</artifactId><groupId>javax.mail</groupId></exclusion></exclusions></dependency><!-- log end --><!-- other begin --><dependency><groupId>org.jboss.netty</groupId><artifactId>netty</artifactId><version>3.2.0.Final</version></dependency><dependency><groupId>com.101tec</groupId><artifactId>zkclient</artifactId><version>0.8</version></dependency><!-- other end --></dependencies>
</project>

2. dubbo.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://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"><dubbo:application name="dubbo-server" owner="lwb" /><!-- zookeeper注冊中心 --><dubbo:registry address="zookeeper://127.0.0.1:2181" /><dubbo:protocol contextpath="dubbo" port="20881" /><dubbo:monitor protocol="registry"/><!-- 服務具體實現 --><bean id="elasticService" class="com.lwb.service.impl.ElasticServiceImpl" /><!-- 向注冊中心注冊暴漏服務地址,注冊服務 --><dubbo:service interface="com.lwb.service.ElasticService" ref="elasticService" protocol="dubbo" timeout="50000"/>

3. 代碼

package com.lwb.service;/*** @author liuweibo* @date 2018/5/9*/
public interface ElasticService {String helloDubbo(String msg);
}

package com.lwb.service.impl;import com.lwb.service.ElasticService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;/*** @author liuweibo* @date 2018/5/9*/
public class ElasticServiceImpl implements ElasticService {private static final Logger LOGGER = LoggerFactory.getLogger(ElasticServiceImpl.class);public String helloDubbo(String msg) {System.out.println(msg);return "hi!" + msg;}
}

4. 項目結構

5. 啟動類（Application.java）

這里就直接用main方法啟動了

package com.lwb;import org.springframework.context.support.ClassPathXmlApplicationContext;import java.io.IOException;/*** @author liuweibo* @date 2018/5/9*/
public class Application {public static void main(String[] args) throws IOException {ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext( new String[] { "dubbo.xml" });context.start();System.out.println("任意按鍵退出");System.in.read();context.close();}
}

客戶端（dubbo-client）

1. pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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.lwb</groupId><artifactId>dubbo-client</artifactId><version>1.0-SNAPSHOT</version><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><!-- spring begin --><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>4.1.6.RELEASE</version></dependency><!-- spring end --><!-- dubbo begin --><dependency><groupId>com.alibaba</groupId><artifactId>dubbo</artifactId><version>2.5.3</version></dependency><!-- dubbo end --><!-- 注冊中心zookeeper begin --><dependency><groupId>org.apache.zookeeper</groupId><artifactId>zookeeper</artifactId><version>3.3.6</version></dependency><!-- 注冊中心zookeeper end --><!-- log begin --><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.15</version><exclusions><exclusion><groupId>com.sun.jdmk</groupId><artifactId>jmxtools</artifactId></exclusion><exclusion><groupId>com.sun.jmx</groupId><artifactId>jmxri</artifactId></exclusion><exclusion><artifactId>jms</artifactId><groupId>javax.jms</groupId></exclusion><exclusion><artifactId>mail</artifactId><groupId>javax.mail</groupId></exclusion></exclusions></dependency><!-- log end --><!-- other begin --><dependency><groupId>com.101tec</groupId><artifactId>zkclient</artifactId><version>0.8</version></dependency><dependency><groupId>com.lwb</groupId><artifactId>dubbo-server</artifactId><version>1.0-SNAPSHOT</version></dependency><!-- other end --></dependencies></project>

2. dubbo.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://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"><dubbo:application name="consumer-of-dubbo-demo" /><dubbo:registry address="zookeeper://127.0.0.1:2181" /><!-- 向注冊中心訂閱服務 --><dubbo:reference id="elasticService" interface="com.lwb.service.ElasticService" /></beans>

3. 服務調用（這里為了簡單，就在main方法里面處理了哈，Application.java）

package com.lwb;import com.lwb.service.ElasticService;
import com.lwb.service.impl.ElasticServiceImpl;
import org.springframework.context.support.ClassPathXmlApplicationContext;/*** @author liuweibo* @date 2018/5/9*/
public class Application {public static void main(String[] args) {ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "dubbo.xml" });context.start();ElasticService service = (ElasticService) context.getBean("elasticService");System.out.println(service.helloDubbo("world"));context.close();}
}

4. 項目結構