springBoot+dubbo服务提供者的使用

创建服务接口项目(maven或java项目即可)

pom.xml文件(这里使用了lombok插件，有兴趣的可以点击 lombok阅读安装使用)

<?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.dubbo</groupId>
    <artifactId>service</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.8</version>
            <optional>true</optional>
        </dependency>
    </dependencies>
</project>

创建数据模型

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

import java.io.Serializable;

@Getter
@Setter
@ToString
public class ResultModel implements Serializable {

    private String name;

    private Integer age;

}

创建接口类

import com.dubbo.model.ResultModel;

public interface DubboTestService {

    public ResultModel getTestResult();
}

使用mvn clean install命令打包，创建完成，完整结构如图

创建服务实现项目(springBoot)，基于注解方式

pom.xml文件

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.8.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.dubbo</groupId>
    <artifactId>service-impl</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>service-impl</name>
    <description>Demo project for Spring Boot</description>

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

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!--自定义接口类-->
        <dependency>
            <groupId>com.dubbo</groupId>
            <artifactId>service</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!--引入dubbo-->
        <dependency>
            <groupId>com.alibaba.boot</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>0.2.0</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

springBoot启动类增加@EnableDubbo注解
application.properties配置文件增加以下dubbo配置

#提供方应用信息，用于计算依赖关系
dubbo.application.name=dubboTest
#使用zookeeper注册中心
dubbo.registry.address=zookeeper://127.0.0.1:2181
#用dubbo协议在20880端口暴露服务
dubbo.protocol.name=dubbo
dubbo.protocol.port=20880
添加服务提供类，注意:
1、@Service注解是dubbo提供的不是spring提供的
2、DubboTestService接口是第一个项目编写的，由服务提供者实现
3、@Service注解增加interfaceClass参数是防止这个类使用了其他AOP使dubbo无法正常解析接口类
4、group参数用于区分环境
启动项目后可以在dubbo-admin后台看到

基于XML方式(使用注解方式的pom.xml文件)

创建XML配置文件

<?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">

    <!-- 提供方应用信息，用于计算依赖关系 -->
    <dubbo:application name="dubboTest"/>

    <!-- 使用zookeeper注册中心 -->
    <dubbo:registry address="zookeeper://127.0.0.1:2181"/>

    <!-- 用dubbo协议在20880端口暴露服务 -->
    <dubbo:protocol name="dubbo" port="20880"/>

    <!--创建bean-->
    <bean id="DubboTestServiceImpl" class="com.dubbo.service.impl.DubboTestServiceImpl" />

    <!-- 将该接口暴露到dubbo中 -->
    <dubbo:service interface="com.dubbo.service.DubboTestService" ref="DubboTestServiceImpl" group="test" version="1.0.0"/>
</beans>

创建启动类

import org.springframework.context.support.ClassPathXmlApplicationContext;
import java.io.IOException;

public class ServiceImplApplication {

    public static void main(String[] args) throws IOException {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("serviceImpl.xml");
        context.start();
        System.out.println("----------------服务已启动，按任意键结束···········--------------------");
        System.in.read(); 
    }

}