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官方 Dubbo Spring Boot Starter 1.0.0 公测版即将发布

据阿里开发团队宣布，Dubbo Spring Boot Starter 1.0.0 公测版已开发完毕，即将发布至 Maven 公有仓库，目前正在内部测试中。

Dubbo Spring Boot Starter 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）、外部化配置（Externalized-Configuration）以及生产准备（Actuator）等。

版本依赖

特别提醒，以下版本依赖尚未发布到 Maven 公有仓库，请自行 checkout 代码到本地，并且通过命令 $ ./mvnw clean install 构建：

<dependency>
  <groupId>com.alibaba.boot</groupId>
  <artifactId>dubbo-spring-boot-starter</artifactId>
  <version>1.0.0-SNAPSHOT</version>
</dependency>

同时，dubbo-spring-boot-starter 底层依赖 Dubbo 2.5.9。

快速上手

服务接口（RPC）

public interface DemoService {

    String sayHello(String name);

}

服务提供者（Provider）

实现 DemoServer 接口提供服务(放置于 com.alibaba.boot.dubbo.demo.provider.service 包下)：

@Service(
        version = "1.0.0",
        application = "${dubbo.application.id}",
        protocol = "${dubbo.protocol.id}",
        registry = "${dubbo.registry.id}"
)
public class DefaultDemoService implements DemoService {

    public String sayHello(String name) {
        return "Hello, " + name + " (from Spring Boot)";
    }

}

配置 application.properties 以提供外部化配置源:

# Spring boot application
spring.application.name = dubbo-provider-demo
server.port = 9090
management.port = 9091

# Dubbo 组件 (如 @Service , @Reference) 扫描路径，多路径以","分割
dubbo.scan.basePackages  = com.alibaba.boot.dubbo.demo.provider.service

# Dubbo Config Bean 外部化配置
dubbo.application.id = dubbo-provider-demo
dubbo.application.name = dubbo-provider-demo
dubbo.protocol.id = dubbo
dubbo.protocol.name = dubbo
dubbo.protocol.port = 12345
dubbo.registry.id = my-registry

提供服务提供者引导类：

@SpringBootApplication
public class DubboProviderDemo {

    public static void main(String[] args) {

        SpringApplication.run(DubboProviderDemo.class,args);

    }

}

服务消费者（Consumer）

实现服务消费者 Controller (位于 com.alibaba.boot.dubbo.demo.consumer.controller 包下）:

@RestController
public class DemoConsumerController {

    @Reference(version = "1.0.0",
            application = "${dubbo.application.id}",
            url = "dubbo://localhost:12345")
    private DemoService demoService;

    @RequestMapping("/sayHello")
    public String sayHello(@RequestParam String name) {
        return demoService.sayHello(name);
    }

}

增加外部化配置至 application.properties ：

# Spring boot application
spring.application.name = dubbo-consumer-demo
server.port = 8080
management.port = 8081

# Dubbo Config Bean 外部化配置
dubbo.application.id = dubbo-consumer-demo
dubbo.application.name = dubbo-consumer-demo
dubbo.protocol.id = dubbo
dubbo.protocol.name = dubbo
dubbo.protocol.port = 12345

提供服务消费者引导类：

@SpringBootApplication(scanBasePackages = "com.alibaba.boot.dubbo.demo.consumer.controller")
public class DubboConsumerDemo {

    public static void main(String[] args) {

        SpringApplication.run(DubboConsumerDemo.class,args);

    }

}

原文 https://www.oschina.net/news/92687/dubbo-spring-boot-starter-1-0-0

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