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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
代码语言：javascript复制@Service
public class AnnotationServiceImpl implements AnnotationService {
@Override
public String sayHello(String name) {
return "annotation: hello, " name;
}
}增加应用共享配置
代码语言：javascript复制# 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
代码语言：javascript复制@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
代码语言：javascript复制@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
代码语言：javascript复制# 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
代码语言：javascript复制@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
代码语言：javascript复制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
本文由 mdnice 多平台发布
