以注解配置的方式来配置你的 Dubbo 应用
提示
需要 2.6.3 及以上版本支持。 点此查看 完整示例[1]
服务提供方
Service注解暴露服务
@Service public class AnnotationServiceImpl implements AnnotationService { @Override public String sayHello(String name) { return "annotation: hello, " + name; } }
增加应用共享配置
# dubbo-provider.properties dubbo.application.name=annotation-provider dubbo.registry.address=zookeeper://127.0.0.1:2181 dubbo.protocol.name=dubbo dubbo.protocol.port=20880
指定 Spring 扫描路径
@Configuration @EnableDubbo(scanBasePackages = "org.apache.dubbo.samples.simple.annotation.impl") @PropertySource("classpath:/spring/dubbo-provider.properties") static public class ProviderConfiguration { }
服务消费方
Reference注解引用服务
@Component("annotationAction") public class AnnotationAction { @Reference private AnnotationService annotationService; public String doSayHello(String name) { return annotationService.sayHello(name); } }
增加应用共享配置
# dubbo-consumer.properties dubbo.application.name=annotation-consumer dubbo.registry.address=zookeeper://127.0.0.1:2181 dubbo.consumer.timeout=3000
指定 Spring 扫描路径
@Configuration @EnableDubbo(scanBasePackages = "org.apache.dubbo.samples.simple.annotation.action") @PropertySource("classpath:/spring/dubbo-consumer.properties") @ComponentScan(value = {"org.apache.dubbo.samples.simple.annotation.action"}) static public class ConsumerConfiguration { }
调用服务
public static void main(String[] args) throws Exception { AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(ConsumerConfiguration.class); context.start(); final AnnotationAction annotationAction = (AnnotationAction) context.getBean("annotationAction"); String hello = annotationAction.doSayHello("world"); }
参考资料
[1]
完整示例: https://github.com/apache/dubbo-samples/tree/master/2-advanced/dubbo-samples-annotation
