转载：http://blog.csdn.net/zjcjava/article/details/78766095

背景

Dubbo的开源人梁飞在内部的交流会上宣布重启dubbo的维护和更新，具体PPT内容请看我的个人订阅号。

因此本文基于2017-12-10号的维护的版本dubbo-2.5.7。

这里为何从Dubbo-admin开始，这不是最重要的部分，但是却是dubbo源码编译最简单的部分。

准备工作

按照zookeeper服务（参考单机安装zookeeper安装）

下载dubbo源码 
https://github.com/alibaba/dubbo/releases/tag/dubbo-2.5.7

当然也可以直接从我的github上面直接下载已经编译好了的war包 
https://github.com/BambooZhang/dubbo-study

编译

解压后这里只用到一个项目就是dubbo-admin

cd D:\git_space\dubbo-dubbo-2.5.7\dubbo-dubbo-2.5.7\dubbo-admin

mvn package -Dmaven.skip.test=true

出现下面的结果则说明编译成功



[INFO]

[INFO] --- maven-war-plugin:2.2:war (default-war) @ dubbo-admin ---

[INFO] Packaging webapp

[INFO] Assembling webapp [dubbo-admin] in [D:\git_space\dubbo-dubbo-2.5.7\dubbo-dubbo-2.5.7\dubbo-admin\target\dubbo-admin-2.5.7]

[INFO] Processing war project

[INFO] Copying webapp resources [D:\git_space\dubbo-dubbo-2.5.7\dubbo-dubbo-2.5.7\dubbo-admin\src\main\webapp]

[INFO] Webapp assembled in [880 msecs]

[INFO] Building war: D:\git_space\dubbo-dubbo-2.5.7\dubbo-dubbo-2.5.7\dubbo-admin\target\dubbo-admin-2.5.7.war

[INFO] WEB-INF\web.xml already added, skipping

[INFO] ------------------------------------------------------------------------

[INFO] BUILD SUCCESS

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 24.516 s

[INFO] Finished at: 2017-12-10T17:38:17+08:00

[INFO] Final Memory: 19M/244M

[INFO] ------------------------------------------------------------------------

部署dubbo-admin到tomcat

把target\dubbo-admin-2.5.7下面的文件都拷贝到tomcat/webapps/ROOT下面

修改配置dubbo.properties 
zookeeper地址修改为自己安装的ip地址，默认是127.0.0.1

dubbo.registry.address=zookeeper://192.168.0.91:2181

dubbo.admin.root.password=root

dubbo.admin.guest.password=guest

启动dubbo-admin

首先启动zookeeper服务，在启动tomcat 
启动完成访问localhost:8080 
默认账号密码都是root 

Dubbo服务提供者和消费者demo

dubbo-admin-2.5.7.war管理中心 
dubbo-provider服务器提供者 
dubbo-consumer服务器消费者

spring版本：4.3.9.RELEASE

dubbo-provider服务器提供者

pom

<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.bamboo</groupId>

  <artifactId>dubbo-provider</artifactId>

  <version>0.0.1-SNAPSHOT</version>

  <packaging>jar</packaging>

  <name>dubbo-provider</name>

  <url>http://maven.apache.org</url>

    <repositories>

        <repository>

            <id>maven-ali</id>

            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>

            <releases>

                <enabled>true</enabled>

            </releases>

            <snapshots>

                <enabled>true</enabled>

                <updatePolicy>always</updatePolicy>

                <checksumPolicy>fail</checksumPolicy>

            </snapshots>

        </repository>

    </repositories>

  <properties>

    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

     <spring.version>4.3.9.RELEASE</spring.version>

  </properties>

    <dependencies>

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>dubbo</artifactId>

            <version>2.5.7</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>junit</groupId>

      <artifactId>junit</artifactId>

      <version>3.8.1</version>

      <scope>test</scope>

    </dependency>

  </dependencies>

</project>

applicationProvider.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/beans

        http://www.springframework.org/schema/beans/spring-beans.xsd

        http://code.alibabatech.com/schema/dubbo

        http://code.alibabatech.com/schema/dubbo/dubbo.xsd ">

    <!-- 具体的实现bean -->

    <bean id="providerService" class="com.bamboo.dubbo_provider.ProviderServiceImpl" />

    <!-- 提供方应用信息，用于计算依赖关系 -->

    <dubbo:application name="dubbo_provider"  />

    <!-- 使用multicast广播注册中心暴露服务地址

    <dubbo:registry address="multicast://localhost:1234" />-->

    <!-- 使用zookeeper注册中心暴露服务地址 127.0.0.1:2181 -->

    <dubbo:registry address="zookeeper://192.168.0.91:2181" />

    <!-- 用dubbo协议在20880端口暴露服务 -->

    <dubbo:protocol name="dubbo" port="29014" />

    <!-- 声明需要暴露的服务接口 -->

    <dubbo:service interface="com.bamboo.service.ProviderService" ref="providerService" />

</beans>

java

service

package com.bamboo.service;

public interface  ProviderService {

    public String sayHello(String name);

}

ProviderServiceImpl

package com.bamboo.dubbo_provider;

import com.bamboo.service.ProviderService;

public class ProviderServiceImpl implements ProviderService {  

    public String sayHello(String name) {

        return "Hello:"+name+"你好，你好~~";

    }  

}

main.java

package com.bamboo.dubbo_provider;

import java.io.IOException;

import org.springframework.context.support.ClassPathXmlApplicationContext;

/**

 * dubbo 服务提供端

 * @author bamboo

 */

public class App

{

    public static void main(String[] args) {

        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(

                new String[]{"applicationProvider.xml"});

        context.start();

        System.out.println("提供者服务已注册成功");

        System.out.println("请按任意键取消提供者服务");

        try {

            System.in.read();//让此程序一直跑，表示一直提供服务

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}

运行

log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment).

log4j:WARN Please initialize the log4j system properly.

提供者服务已注册成功

请按任意键取消提供者服务

dubbo-consumer服务器消费者

pom

<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.bamboo</groupId>

  <artifactId>dubbo-consumer</artifactId>

  <version>0.0.1-SNAPSHOT</version>

  <packaging>jar</packaging>

  <name>dubbo-consumer</name>

  <url>http://maven.apache.org</url>

        <repositories>

        <repository>

            <id>maven-ali</id>

            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>

            <releases>

                <enabled>true</enabled>

            </releases>

            <snapshots>

                <enabled>true</enabled>

                <updatePolicy>always</updatePolicy>

                <checksumPolicy>fail</checksumPolicy>

            </snapshots>

        </repository>

    </repositories>

  <properties>

    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

     <spring.version>4.3.9.RELEASE</spring.version>

  </properties>

   <dependencies>  

        <!-- 添加dubbo依赖 -->

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>dubbo</artifactId>

            <version>2.5.7</version>

            <exclusions>

                <exclusion>

                    <groupId>org.springframework</groupId>

                    <artifactId>spring</artifactId>

                </exclusion>

            </exclusions>

        </dependency>

        <!-- 添加zk客户端依赖 -->

        <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>junit</groupId>

      <artifactId>junit</artifactId>

      <version>3.8.1</version>

      <scope>test</scope>

    </dependency>

  </dependencies>

</project>

applicationConsumer.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/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127.0.0.1:2181 -->

    <dubbo:registry  protocol="zookeeper" address="zookeeper://192.168.0.91:2181" />

      <!-- 生成远程服务代理，可以和本地bean一样使用demoService -->

    <dubbo:reference id="providerService" interface="com.bamboo.service.ProviderService" />

</beans>

java

service

package com.bamboo.service;

public interface  ProviderService {

    public String sayHello(String name);

}

main

package com.bamboo.dubbo_consumer;

import java.io.IOException;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.bamboo.service.ProviderService;

/**

 * dubbo 服务消费端

 * @author bamboo

 *

 */

public class App

{

    public static void main(String[] args) {

        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(

                new String[] { "applicationConsumer.xml" });  

        context.start();

        ProviderService providerService = (ProviderService) context.getBean("providerService");  

        System.out.println(providerService.sayHello("bamboo"));

        System.out.println("Press any key to exit.");

        try {

            System.in.read();

        } catch (IOException e) {

            e.printStackTrace();

        }    

    }

}

运行

log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment).

log4j:WARN Please initialize the log4j system properly.

Hello:bamboo你好，你好~~

Press any key to exit.

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