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README
Apache-2.0

Dubbo Spring Boot 工程

Build Status codecov license

Dubbo Apache Dubbo™ 是一款高性能Java RPC框架。 Spring Boot 应用场景的开发。同时也整合了 Spring Boot 特性:

Apache Dubbo |ˈdʌbəʊ| 是一款高性能、轻量级的开源Java RPC框架,它提供了三大核心能力:面向接口的远程方法调用,智能容错和负载均衡,以及服务自动注册和发现。

English README

已发行版本

您可以为您的工程引入最新 dubbo-spring-boot-starter 的发布,增加以下依赖到工程的 pom.xml 文件中:

<properties>
    <spring-boot.version>2.3.0.RELEASE</spring-boot.version>
    <dubbo.version>2.7.7</dubbo.version>
</properties>
    
<dependencyManagement>
    <dependencies>
        <!-- Spring Boot -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>${spring-boot.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

        <!-- Apache Dubbo  -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-dependencies-bom</artifactId>
            <version>${dubbo.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
            <version>${dubbo.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>javax.servlet</groupId>
                    <artifactId>servlet-api</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>log4j</groupId>
                    <artifactId>log4j</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencies>
    <!-- Dubbo Spring Boot Starter -->
    <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo-spring-boot-starter</artifactId>
        <version>2.7.7</version>
    </dependency>
    
    <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo</artifactId>
    </dependency>
</dependencies>

如果您的工程遇到了依赖问题, 请尝试添加如下 Maven 参考到工程的 pom.xml 文件中:

<repositories>
    <repository>
        <id>apache.snapshots.https</id>
        <name>Apache Development Snapshot Repository</name>
        <url>https://repository.apache.org/content/repositories/snapshots</url>
        <releases>
            <enabled>false</enabled>
        </releases>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </repository>
</repositories>

历史版本

如果您现在使用的Dubbo版本低于2.7.0,请使用如下对应版本的Dubbo Spring Boot:

Dubbo Spring Boot Dubbo Spring Boot
0.2.1.RELEASE 2.6.5+ 2.x
0.1.2.RELEASE 2.6.5+ 1.x

源代码构建

如果您需要尝试最新 dubbo-spring-boot-project 的特性,您可将当前工程手动 Maven install 到本地 Maven 仓库:

  1. Maven install 当前工程

Maven install = mvn install

快速开始

如果您对 Dubbo 不是非常了解,耽误您几分钟访问 http://dubbo.apache.org/ 。了解后,如果您期望更深入的探讨,可以移步用户手册

通常情况 , Dubbo 应用有两种使用场景 , 其一为 Dubbo 服务提供方 , 另外一个是 Dubbo 服务消费方,当然也允许两者混合,下面我们一起快速开始!

首先,我们假设存在一个 Dubbo RPC API ,由服务提供方为服务消费方暴露接口 :

public interface DemoService {

    String sayHello(String name);

}

实现 Dubbo 服务提供方

  1. 实现 DemoService 接口

    @Service(version = "1.0.0")
    public class DefaultDemoService implements DemoService {
    
        /**
         * The default value of ${dubbo.application.name} is ${spring.application.name}
         */
        @Value("${dubbo.application.name}")
        private String serviceName;
    
        public String sayHello(String name) {
            return String.format("[%s] : Hello, %s", serviceName, name);
        }
    }
  2. 编写 Spring Boot 引导程序

    @EnableAutoConfiguration
    public class DubboProviderDemo {
    
        public static void main(String[] args) {
            SpringApplication.run(DubboProviderDemo.class,args);
        }
    }
  3. 配置 application.properties :

    # Spring boot application
    spring.application.name=dubbo-auto-configuration-provider-demo
    # Base packages to scan Dubbo Component: @org.apache.dubbo.config.annotation.Service
    dubbo.scan.base-packages=org.apache.dubbo.spring.boot.sample.provider.service
    
    # Dubbo Application
    ## The default value of dubbo.application.name is ${spring.application.name}
    ## dubbo.application.name=${spring.application.name}
    
    # Dubbo Protocol
    dubbo.protocol.name=dubbo
    dubbo.protocol.port=12345
    
    ## Dubbo Registry
    dubbo.registry.address=N/A

实现 Dubbo 服务消费方

  1. 通过 @Reference 注入 DemoService :

    @EnableAutoConfiguration
    public class DubboAutoConfigurationConsumerBootstrap {
    
        private final Logger logger = LoggerFactory.getLogger(getClass());
    
        @Reference(version = "1.0.0", url = "dubbo://127.0.0.1:12345")
        private DemoService demoService;
    
        public static void main(String[] args) {
            SpringApplication.run(DubboAutoConfigurationConsumerBootstrap.class).close();
        }
    
        @Bean
        public ApplicationRunner runner() {
            return args -> {
                logger.info(demoService.sayHello("mercyblitz"));
            };
        }
    }
  2. 配置 application.yml :

    spring:
      application:
        name: dubbo-auto-configure-consumer-sample

请确保 Dubbo 服务提供方服务可用, DubboProviderDemo 运行方可正常。

更多的实现细节,请参考 Dubbo 示例

社区交流

如果您在使用 Dubbo Spring Boot 中遇到任何问题或者有什么建议? 我们非常需要您的支持!

  • 如果您需要升级版本,请提前阅读发布公告,了解最新的特性和问题修复。
  • 如果您遇到任何问题 ,您可以订阅 Dubbo 用户邮件列表
  • 问题反馈,您可以在 issues 提出您遇到的使用问题。

模块工程

Dubbo Spring Boot 采用多 Maven 模块工程 , 模块如下:

dubbo-spring-boot-parent

dubbo-spring-boot-parent 模块主要管理 Dubbo Spring Boot 工程的 Maven 依赖

dubbo-spring-boot-autoconfigure

dubbo-spring-boot-autoconfigure 模块提供 Spring Boot's @EnableAutoConfiguration 的实现 - DubboAutoConfiguration, 它简化了 Dubbo 核心组件的装配。

dubbo-spring-boot-actuator

dubbo-spring-boot-actuator 提供 Production-Ready 特性:

dubbo-spring-boot-starter

dubbo-spring-boot-starter 模块为标准的 Spring Boot Starter , 当您将它引入到工程后,dubbo-spring-boot-autoconfigure 模块会一同被间接依赖。

dubbo-spring-boot-samples

Dubbo Spring Boot 示例工程包括:

License

Apache Dubbo spring boot project 基于Apache 2.0许可证开源,详细请参考LICENSE

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简介

Dubbo Spring Boot Project 致力于简化 Dubbo 应用在 Spring Boot 环境中的开发,主要包括自动装配(Auto-Configure)、外部化配 展开 收起
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