可以從dubbo官網上跳轉到他在GitHub上託管的程式碼中下載demo 新建maven專案 pom.xml新增依賴可以參考下載下來解壓開的的demo: 給自己專案中新增依賴：

<?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.zyf</groupId>
    <artifactId>dubbo-demo-provider</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>com.alibaba</groupId
 
>
            <artifactId>dubbo</artifactId>
            <version>2.6.0</version>
        </dependency>
        <!--zookeeper的客戶端依賴 start-->
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId
 
>
            <version>0.10</version>
        </dependency>
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-framework</artifactId>
            <version>4.0.1</version>
        </dependency>
        <!--zookeeper的客戶端依賴 end-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.46</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.25</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.4</version>
        </dependency>
        <dependency>
            <groupId>io.netty</groupId>
            <artifactId>netty-all</artifactId>
            <version>4.0.35.Final</version>
        </dependency>
    </dependencies>
</project>

配置檔案：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
       xmlns="http://www.springframework.org/schema/beans"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
       http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

	<!-- 提供方應用名稱，用於計算依賴關係 -->
    <dubbo:application name="demo-provider" />
    
    <!-- 使用zookeeper註冊中心暴露服務地址 -->
    <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
    
    <!-- 使用dubbo協議，在20880埠暴露服務 -->
    <dubbo:protocol name="dubbo" port="20880"/>
    
    <!-- service實現類作為本地的一個bean -->
    <bean id="demoProviderService" class="com.zyf.service.impl.ProviderServiceImpl"/>
    
    <!-- 宣告需要暴露的服務介面 -->
    <dubbo:service interface="com.zyf.service.ProviderService" ref="demoProviderService"/>

</beans>

測試類

import org.springframework.context.support.ClassPathXmlApplicationContext;

import java.io.IOException;

public class ProviderTest {

	public static void main(String[] args) {
		ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"dubbo-demo-provider.xml"});
		context.start();
		System.out.println("服務提供者向zookeeper註冊中心註冊服務成功（埠：20880）");
		try {
			System.in.read();// press any key to exit
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		context.close();
	}
}

啟動zookeeper服務 執行測試類 檢視zookeeper服務