前言

由于阿里dubbo團(tuán)隊(duì)的解散山上，已經(jīng)很久沒有更新，介于沒有支持Rest服務(wù)等新特性。所以把目光投向了dubbox骗爆，dubbox是當(dāng)當(dāng)網(wǎng)基于dubbo二次開發(fā)的一個(gè)項(xiàng)目，集成SpringBoot需要新版本的dubox并沒有提交maven倉庫蔽介，接下來需要自己制作maven依賴摘投。

制作maven依賴

1煮寡、 下載dubbox工程
使用git克隆工程，關(guān)于git的安裝及使用在這里就不說了犀呼。

• git clone -b dubbox-2.8.4 --depth 1 https://github.com/dangdangdotcom/dubbox
  或者去GitHub上下載
  
  
  注意：一定要選擇分支dubbox-2.8.4幸撕，這里是我說的巨坑。

2外臂、cmd使用maven命令編譯坐儿，需要配置maven環(huán)境變量。

    cd dubbox
    mvn clean install -Dmaven.test.skip=true

3宋光、到這步制作maven依賴就完成了貌矿，到本地倉庫里查看。

4罪佳、項(xiàng)目里引入依賴

  <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>dubbo</artifactId>
        <version>2.8.4</version>
    </dependency>

安裝zookeeper

1逛漫、zookeeper簡(jiǎn)介

ZooKeeper是一個(gè)分布式的，開放源碼的分布式應(yīng)用程序協(xié)調(diào)服務(wù)菇民，是Google的Chubby一個(gè)開源的實(shí)現(xiàn)尽楔，是Hadoop和Hbase的重要組件。它是一個(gè)為分布式應(yīng)用提供一致性服務(wù)的軟件第练，提供的功能包括：配置維護(hù)阔馋、域名服務(wù)、分布式同步娇掏、組服務(wù)等呕寝。

ZooKeeper的目標(biāo)就是封裝好復(fù)雜易出錯(cuò)的關(guān)鍵服務(wù)，將簡(jiǎn)單易用的接口和性能高效婴梧、功能穩(wěn)定的系統(tǒng)提供給用戶

而dubbo就是依賴zookeeper的一個(gè)分布式框架下梢，當(dāng)然二次開發(fā)的dubbox肯定也會(huì)依賴于zookeeper，所以我們需要先安裝zookeeper

2塞蹭、下載zookeeper

zookeeper官網(wǎng)地址http://zookeeper.apache.org/

下載地址http://apache.fayea.com/zookeeper/

3孽江、安裝zookeeper

因?yàn)槲沂窃赪indows環(huán)境配置的，所以就簡(jiǎn)單說一下windows下面的配置吧番电，首先解壓壓縮包岗屏，然后進(jìn)入conf文件夾，復(fù)制一下zoo_sample.cfg創(chuàng)建副本漱办，然后重命名為zoo.cfg,因?yàn)閦ookeeper只識(shí)別zoo.cfg这刷，而默認(rèn)是沒有這個(gè)文件的，zoo_sample.cfg是默認(rèn)的配置文件娩井，但是因?yàn)槲募脑蛳疚荩詚ookeeper無法識(shí)別，當(dāng)然直接重命名zoo_sample.cfg也是可以的洞辣，只是看自己喜歡咯

4咐刨、啟動(dòng)zookeeper

Windows環(huán)境下直接運(yùn)行bin目錄下的zkServer.cmd就可以昙衅，如果是Linux環(huán)境，則在bin目錄下運(yùn)行

./zkServer.sh start

命令定鸟，就可以啟動(dòng)zookeeper

創(chuàng)建工程

1绒尊、創(chuàng)建如下圖目錄結(jié)構(gòu)的工程

2、修改pom.xml

• boot-dubbo 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.boot</groupId>
    <artifactId>boot-dubbo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!-- 這里是我們子模塊的設(shè)置 -->
    <modules>
        <module>boot-dubbo-api</module>
        <module>boot-dubbo-provider</module>
        <module>boot-dubbo-consumer</module>
    </modules>

    <!-- 在這里設(shè)置打包類型為pom仔粥，作用是為了實(shí)現(xiàn)多模塊項(xiàng)目 -->
    <packaging>pom</packaging>

    <!-- 第一步：添加Springboot的parent -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.2.RELEASE</version>
    </parent>

    <!-- 設(shè)置我們項(xiàng)目的一些版本屬性 -->
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <spring-boot.version>1.5.2.RELEASE</spring-boot.version>
        <java.version>1.8</java.version>
        <lombok.version>1.16.18</lombok.version>
        <dubbo.version>2.8.4</dubbo.version>
        <zkclient.version>0.6</zkclient.version>
    </properties>

    <!-- 聲明一些項(xiàng)目依賴管理，方便我們的依賴版本管理 -->
    <dependencyManagement>
        <dependencies>
            <!-- Springboot依賴 -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter</artifactId>
                <version>${spring-boot.version}</version>
            </dependency>

            <!-- Springboot-web依賴 -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
                <version>${spring-boot.version}</version>
            </dependency>

            <!-- 使用lombok實(shí)現(xiàn)JavaBean的get蟹但、set躯泰、toString、hashCode华糖、equals等方法的自動(dòng)生成  -->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
                <scope>provided</scope>
            </dependency>

            <!-- DubboX相關(guān) -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>dubbo</artifactId>
                <version>${dubbo.version}</version>
            </dependency>
            <!-- zookeeper 第三方操作工具類 -->
            <dependency>
                <groupId>com.101tec</groupId>
                <artifactId>zkclient</artifactId>
                <version>${zkclient.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

• boot-dubbo-api 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">
    <parent>
        <artifactId>boot-dubbo</artifactId>
        <groupId>com.boot</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>boot-dubbo-api</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <scope>provided</scope>
        </dependency>
    </dependencies>
</project>

• boot-dubbo-provider 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">
    <parent>
        <artifactId>boot-dubbo</artifactId>
        <groupId>com.boot</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>boot-dubbo-provider</artifactId>

    <dependencies>
        <dependency>
            <groupId>com.boot</groupId>
            <artifactId>boot-dubbo-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!--dubbo2.8.4必須引入spring-boot-starter-web依賴麦向，這也是我在做項(xiàng)目時(shí)遇到的坑，舊版本2.5.5不需要引入-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- DubboX相關(guān) -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
        </dependency>
        <!-- zookeeper 第三方操作工具類 -->
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

• boot-dubbo-consumer 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">
    <parent>
        <artifactId>boot-dubbo</artifactId>
        <groupId>com.boot</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>boot-dubbo-consumer</artifactId>

    <dependencies>
        <dependency>
            <groupId>com.boot</groupId>
            <artifactId>boot-dubbo-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!--dubbo2.8.4必須引入spring-boot-starter-web依賴-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- DubboX相關(guān) -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
        </dependency>
        <!-- zookeeper 第三方操作工具類 -->
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

3客叉、boot-dubbo-api添加服務(wù)提供者的接口

package com.boot.service;

public interface TestService {

    String sayHello(String str);

}

4诵竭、boot-dubbo-provider服務(wù)提供者

package com.boot.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.boot.service.TestService;

import java.text.SimpleDateFormat;
import java.util.Date;
//這里Service是dubbo的注解,需要設(shè)置版本，不設(shè)置行不行請(qǐng)自測(cè)
@Service(version = "1.0.0")
public class TestServiceImpl implements TestService {

    @Override
    public String sayHello(String str) {
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        return dateFormat.format(new Date()) + ": " + str;
    }
}

• dubbox.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">

    <dubbo:application name="provider"/>
    <!-- 注冊(cè)中心的ip地址 -->
    <dubbo:registry address="zookeeper://192.168.0.108:2181"/>
    <!-- 掃描注解包路徑兼搏，多個(gè)包用逗號(hào)分隔卵慰，不填pacakge表示掃描當(dāng)前ApplicationContext中所有的類 -->
    <dubbo:annotation package="com.boot.service.impl"/>
    <!-- 要暴露的服務(wù)接口-->
    <!--<dubbo:service interface="com.boot.service.TestService" ref="testServiceImpl" />-->
</beans>

• application.yml

server:
  port: 8081
  context-path: /

5、boot-dubbo-consumer服務(wù)消費(fèi)者

package com.boot.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.boot.service.TestService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/")
public class TestController {

    @Reference(version = "1.0.0")
    private TestService testService;

    @GetMapping("hello")
    public String hello() {
        return testService.sayHello("Hello springboot and dubbo!");
    }
}

• dubbox.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">

    <dubbo:application name="consumer"/>
    <dubbo:registry address="zookeeper://192.168.0.108:2181"/>
    <dubbo:annotation package="com.boot.controller"/>
    <!--<dubbo:reference id="testServiceImpl" interface="com.boot.service.TestService"/>-->
</beans>

• application.yml

server:
  port: 8082
  context-path: /

6佛呻、引用dubbo配置xml

在Spring boot的Application類添加注解
@ImportResource({"classpath:dubbo.xml"})
xml名字可以自定義裳朋，消費(fèi)者和服務(wù)提供者Application類都需要配置此注解。

結(jié)尾

至此吓著，spring boot集成duubox就結(jié)束了鲤嫡。感謝有坑，有坑才有成長(zhǎng)绑莺。
GitHub項(xiàng)目地址