spring-boot-starter-dubbox

前言

当今微服务架构发展非常迅速,应用也比较广泛，涌现出一批非常优秀的微服务架构，比如NetflixSpring Cloud 当当网的dubbox是应用最多的两个框架,项目也倾向于SpringBoot来构建。

我们项目准备应用Dubbox作用微服务框架，选址它处于以下两点考虑

• rpc性能上的提升主要是增加了序列化的处理(内部项目应用之间的调用rpc性能比较理想)。

• 同时也支持Rest。

spring-boot-starter-dubbox

spring-boot-starter-dubbox,将springBoot与dubbox实现集成实现形成一个dubbo、Rest服务框架。

目前所有的项目都是通过SpringBoot来创建的大大简化了之前的XML操作,当时就想能不能把dubbox形成一个组件可以插拔化用的时候只需要引入包加上启动注解@EnableDubbox即可使用，当时第一反应就上看看GitHub有木有做个这个事情，然后并没有，但是找到了阿里同事对dubbo做了这样的一个事情https://github.com/alibaba/spring-boot-starter-dubbo,所以决定在上面做扩展主要支持Rest。spring-boot-starter-dubbox代码需要的同学我会上传GitHub或者以微信形式问我306570696。

如何发布dubbox服务

How to publish dubbo

• add Dependencies:

    
        com.euond
        spring-boot-starter-dubbox
        3.0.1-SNAPSHOT
    

• add dubbo configuration in application.properties, demo:

server:
  port: 7001
spring:
  http:
    encoding:
      charset: UTF-8
      enabled: true
  dubbo:
    appname: spring-boot-starter-dubbo-test
    registry: zookeeper://127.0.0.1:2181
    version: 1.0.0
    dubbox-dubbo:   #dubbo服务
      protocol: dubbo
      port: 20801
    dubbox-rest:    #rest服务
      server: tomcat
      port: 8889
      protocol: rest
    dubbox-webservice:  #webservice服务
      protocol: webservice
      port: 8080
      server: jetty

• then add @EnableDubboConfiguration on Spring Boot Application, indicates that dubbo is enabled.(web or non-web application can use dubbo provider)

@SpringBootApplication
@EnableDubboConfiguration
public class DubboProviderLauncher {
  //...
}

• code your dubbo service, add @Service(import com.alibaba.dubbo.config.annotation.Service) on your service class, and interfaceClass is the interface which will be published.

@Service(interfaceClass = IHelloService.class)
public class HelloServiceImpl implements IHelloService {
  //...
}

@Service(interfaceClass = AnotherUserRestService.class,protocol="rest")
@Component
public class AnotherUserRestServiceImpl implements AnotherUserRestService {

    @Override
    public String getString(Long id) {
        // TODO Auto-generated method stub
        return "Holle,Word";
    }

    @Override
    public String getTest() {
        // TODO Auto-generated method stub
        return "Holle,Word";
    }

}

• start Spring Boot.

How to consume Dubbo

• add Dependencies:

    
        com.euond
        spring-boot-starter-dubbox
        3.0.1-SNAPSHOT
    

• add dubbo configuration in application.properties, demo:

server:
  port: 7001
spring:
  http:
    encoding:
      charset: UTF-8
      enabled: true
  dubbo:
    appname: spring-boot-starter-dubbo-test
    registry: zookeeper://127.0.0.1:2181
    version: 1.0.0
    dubbox-dubbo:   #dubbo服务
      protocol: dubbo
      

• then add @EnableDubboConfiguration on Spring Boot Application

@SpringBootApplication
@EnableDubboConfiguration
public class DubboConsumerLauncher {
  //...
}

• injection interface by the @DubboConsumer annotation.

@Component
public class HelloConsumer {
  @DubboConsumer
  private IHelloService iHelloService;

}

/**
 * 
 * @author tan.bin
 * 非dubbo的消费端调用dubbo的REST服务（non-dubbo --> dubbo）
 */
@RestController
public class DemoNoDubooRestHello {
    private static final Logger logger = LoggerFactory.getLogger(DemoNoDubooRestHello.class);
    @RequestMapping("/hello2.json")
    public Map restMap(){
        Map restMap = new HashMap();
        Map restParams =new HashMap();
        restParams.put("name", "tan.bin");
        String url="http://localhost:8889/rest-api/service1/person";
        String results="";
        try {
            results=HttpUtils.get(url, restParams);
            logger.info("请求成功");
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        restMap.put("results", results);
        return restMap;
    }
}

/**
 * 
 * @author tan.bin
 * dubbo消费端调用dubbo的REST服务 （dubbo --> dubbo）
 */
@RestController
public class DemoRestHello {
    
    @DubboConsumer(version="1.0.0")
    IHelloDubboRestService helloDubboRestService;
    
    @RequestMapping("/hello1.json")
    public Map restMap(){
        Map restMap = new HashMap();
        String results=helloDubboRestService.hello("tan.bin");
        restMap.put("results", results);
        return restMap;
    }
}

Reference

https://github.com/yefengyueyuan/spring-boot-starter-dubbox