dubbo的简单使用

dubbo是国内常用的rpc框架，使用起来非常方便。

定义common项目，定义producer项目，consumer项目

引入包

代码语言：html复制

   <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.boot</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>0.2.0</version>
        </dependency>
    </dependencies>

common

定义公共接口

代码语言：txt复制

public interface HelloService {
    String sayHi(String name) ;
}

producer

定义生产者

代码语言：txt复制

@Service(timeout = 2000, version="1.0")
@Component
public class DubboHelloServiceImpl implements HelloService {

    @Override
    public  String sayHi(String name) {
        return "version1 hi," name;
    }
}

@Service(timeout = 2000, version="2.0")
@Component
public class DubboHelloServiceV2Impl implements HelloService {

    @Override
    public  String sayHi(String name) {
        return "version hi," name;
    }
}

定义服务端配置

代码语言：txt复制

dubbo:
  application:
    name: hello-dubbo-provider
  registry:
    address: tt.com:12181
    protocol: zookeeper
  protocol:
    name: dubbo
    port: 18888
  scan:
    base-packages: xxxx.com

consumer

消费者

代码语言：txt复制

@Service
public class HelloServiceImpl implements HelloService {

    @Reference(version = "1.0")
    private HelloService helloService1 ;

    @Reference(version = "2.0")
    private HelloService helloService2;

    
   @Override
    public  String sayHi(String name) {
        return helloService1.sayHi(name) ;
    }

    public String sayHi2 (String name){
        return helloService2.sayHi(name) ;
    }
}

消费者配置

代码语言：txt复制

dubbo:
  application:
    name: hello-dubbo-consume
  registry:
    address: tt.com:12181
    protocol: zookeeper

然后服务就可以正常运转了，很方便简洁。

dubbo javadubbo java

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