spring-boot-2整合dubbo

新框架学习，必须上手干。书读百遍，其义自见。

本文主要介绍spring-boot-2整合dubbo，使用xml配置实现一个provider和consumer。

1.创建Maven项目：

spring-boot-parent：父工程，统一管理jar依赖，版本

spring-boot-service：子工程，dubbo服务提供方

spring-boot-web：子工程，dubbo服务消费方

2.spring-boot-parent： 父工程，统一管理jar依赖，版本

pom文件

    <!--集中定义依赖版本号-->

    <properties>

        <maven_javadoc_version>3.0.1</maven_javadoc_version>

        <maven_surefire_version>2.19.1</maven_surefire_version>

        <spring-boot.version>2.1.2.RELEASE</spring-boot.version>

        <jedis.version>2.7.2</jedis.version>

    </properties>

    <!-- 就是管理版本的标签   其下的dependencies标签只是版本的管理 并不依赖jar-->

    <dependencyManagement>

        <dependencies>

            <dependency>

                <!-- Import dependency management from Spring Boot -->

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-dependencies</artifactId>

                <version>${spring-boot.version}</version>

                <type>pom</type>

                <scope>import</scope>

            </dependency>

            <!-- Redis客户端 -->

            <dependency>

                <groupId>redis.clients</groupId>

                <artifactId>jedis</artifactId>

                <version>${jedis.version}</version>

            </dependency>

        </dependencies>

    </dependencyManagement>

3.spring-boot-service ：子工程，dubbo服务提供方

3.1 pom文件

    <properties>

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

        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

        <java.version>1.8</java.version>

        <dubbo-spring-boot>2.0.0</dubbo-spring-boot>

    </properties>

    <dependencies>

        <!-- Spring Boot dependencies -->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter</artifactId>

        </dependency>

        <!--Spring Boot web -->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-web</artifactId>

        </dependency>

        <!-- Spring Boot Test 依赖 -->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-test</artifactId>

            <scope>test</scope>

        </dependency>

        <!-- Dubbo  -->

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>dubbo</artifactId>

            <version>2.6.5</version>

            <exclusions>

                <exclusion>

                    <artifactId>spring</artifactId>

                    <groupId>org.springframework</groupId>

                </exclusion>

            </exclusions>

        </dependency>

        <dependency>

            <groupId>org.apache.curator</groupId>

            <artifactId>curator-framework</artifactId>

            <version>4.0.1</version>

        </dependency>

        <!-- Spring Context Extras -->

        <dependency>

            <groupId>com.alibaba.spring</groupId>

            <artifactId>spring-context-support</artifactId>

            <version>1.0.2</version>

        </dependency>

        <!--netty-->

        <dependency>

            <groupId>io.netty</groupId>

            <artifactId>netty-all</artifactId>

            <version>4.1.30.Final</version>

        </dependency>

        <!-- Zookeeper -->

        <dependency>

            <groupId>org.apache.zookeeper</groupId>

            <artifactId>zookeeper</artifactId>

            <version>3.4.6</version>

            <exclusions>

                <exclusion>

                    <groupId>org.slf4j</groupId>

                    <artifactId>slf4j-log4j12</artifactId>

                </exclusion>

                <exclusion>

                    <groupId>log4j</groupId>

                    <artifactId>log4j</artifactId>

                </exclusion>

            </exclusions>

        </dependency>

        <!-- zkClient -->

        <dependency>

            <groupId>com.github.sgroschupf</groupId>

            <artifactId>zkclient</artifactId>

            <version>0.1</version>

        </dependency>

    </dependencies>

    <build>

        <plugins>

            <!--编译打包插件-->

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

3.2 新建HelloWorldService服务（接口和实现类）

public interface HelloWorldService {

    String getHello(String msg);

}
public class HelloWorldServiceImpl implements HelloWorldService {

    public String getHello(String msg) {

        return "spring boot dubbo start:" + msg;

    }

}

3.3 配置dubbo-provider.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">

    <!-- 提供方应用信息，用于计算依赖关系 -->

    <dubbo:application name="spring-boot-manager-service"  />

    <!-- 注册中心服务地址 -->

    <dubbo:registry id="zookeeper" protocol="zookeeper" address="${dubbo.registry.address}" />

    <!-- 用dubbo协议在30001 -->

    <dubbo:protocol name="dubbo" port="28080" />

    <!-- 声明需要暴露的服务接口 -->

    <dubbo:service interface="com.hao.persistence.service.HelloWorldService" ref="helloWorldService"

                   registry="zookeeper"/>

    <!-- 具体服务接口的实现 -->

    <bean id="helloWorldService" class="com.hao.persistence.service.impl.HelloWorldServiceImpl" />

</beans>

3.4 配置application.properties

#ZooKeeper地址

dubbo.registry.address={ip}:{port}

logging.level.root=INFO

3.5  设置启动类Application

@SpringBootApplication

@ImportResource("classpath:dubbo-provider.xml")

public class Application {

    private static final Logger logger = LoggerFactory.getLogger(Application.class);

    public static void main(String[] args) {

        SpringApplication.run(Application.class, args);

//        logger.info("项目启动!");

    }

}

运行Application类main方法后，在dubbo控制台查看到我们注册的接口，如下所示，代表服务提供者Provider已经配置完成

4.spring-boot-web：子工程，dubbo服务消费方

4.1  pom文件

    <properties>

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

        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

        <java.version>1.8</java.version>

        <dubbo-spring-boot>2.0.0</dubbo-spring-boot>

    </properties>

    <dependencies>

        <!-- Spring Boot dependencies -->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter</artifactId>

        </dependency>

        <!--Spring Boot web -->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-web</artifactId>

        </dependency>

        <!-- Spring Boot Test 依赖 -->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-test</artifactId>

            <scope>test</scope>

        </dependency>

        <!-- Dubbo  -->

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>dubbo</artifactId>

            <version>2.6.5</version>

            <exclusions>

                <exclusion>

                    <artifactId>spring</artifactId>

                    <groupId>org.springframework</groupId>

                </exclusion>

            </exclusions>

        </dependency>

        <!-- Spring Context Extras -->

        <dependency>

            <groupId>com.alibaba.spring</groupId>

            <artifactId>spring-context-support</artifactId>

            <version>1.0.2</version>

        </dependency>

        <!--netty-->

        <dependency>

            <groupId>io.netty</groupId>

            <artifactId>netty-all</artifactId>

            <version>4.1.30.Final</version>

        </dependency>

        <dependency>

            <groupId>com.hao.persistence</groupId>

            <artifactId>spring-boot-manager-service</artifactId>

            <version>1.0-SNAPSHOT</version>

        </dependency>

        <!-- Zookeeper -->

        <dependency>

            <groupId>org.apache.zookeeper</groupId>

            <artifactId>zookeeper</artifactId>

            <version>3.4.6</version>

            <exclusions>

                <exclusion>

                    <groupId>org.slf4j</groupId>

                    <artifactId>slf4j-log4j12</artifactId>

                </exclusion>

                <exclusion>

                    <groupId>log4j</groupId>

                    <artifactId>log4j</artifactId>

                </exclusion>

            </exclusions>

        </dependency>

        <!-- zkClient -->

        <dependency>

            <groupId>com.github.sgroschupf</groupId>

            <artifactId>zkclient</artifactId>

            <version>0.1</version>

        </dependency>

    </dependencies>

    <build>

        <plugins>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

4.2 新建HelloWorldController

@RestController

public class HelloWorldController {

    @Autowired

    private HelloWorldService helloWorldService;

    @RequestMapping("getHello")

    public String getHello(){

        String msg = helloWorldService.getHello("haoprogrammer");

        return msg;

    }

}

4.3 dubbo配置文件 dubbo-consumer.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">

    <!-- 消费方服务名 -->

    <dubbo:application name="spring-boot-manager-web"  />

    <!-- 注册中心服务地址 -->

    <dubbo:registry id="zookeeper" protocol="zookeeper" address="${dubbo.registry.address}" />

    <!-- 引用helloWorldService 服务-->

    <dubbo:reference id="helloWorldService" interface="com.hao.persistence.service.HelloWorldService" check="false"

                   registry="zookeeper" protocol="dubbo" timeout="15000"/>

</beans>

4.4 application.properties

这里将web的默认端口改为8081，防止端口冲突

server.port=8081

## Dubbo 服务消费者配置

#ZooKeeper

dubbo.registry.address=10.10.55.69:2181

logging.level.root=INFO

4.5 启动类Application

@SpringBootApplication

@ImportResource("classpath:dubbo-consumer.xml")

public class Application {

    public static void main(String[] args) {

        SpringApplication.run(Application.class,args);

    }

}

点击运行web项目的main方法，运行成功后如下所示，访问页面url，http://localhost:8081/getHello

到此，简单的spring-boot-2整合dubbo服务完成。

附上 github项目地址：https://github.com/haoprogrammer/spring-boot-parent

感谢各位老铁关注！

关于最新的  dubbo-spring-boot-stater    的jar包，整合spring-boot自动装配（不用再写xml），健康检查特性，会在后续研究。

dubbo-spring-boot-stater：https://github.com/apache/incubator-dubbo-spring-boot-project

<dependency>

    <groupId>com.alibaba.boot</groupId>

    <artifactId>dubbo-spring-boot-starter</artifactId>

    <version>0.2.1-SNAPSHOT</version>

</dependency>

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