dubbo
DubboDemo
springboot + dubbo 3.0
1.定义服务接口
public interface DemoService {
String sayHello(String name);
}
2.提供方
2.1 实现接口并暴露服务
@DubboService
public class DemoServiceImpl implements DemoService {
@Override
public String sayHello(String name) {
System.out.println("Hello " + name + ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
return "Hello " + name;
}
}
2.2 提供者主SpringBoot 主函数
@SpringBootApplication
@EnableDubbo
public class ProviderApplication {
public static void main(String[] args) throws Exception {
new EmbeddedZooKeeper(2181, false).start();
SpringApplication.run(ProviderApplication.class, args);
System.out.println("dubbo service started");
new CountDownLatch(1).await();
}
}
2.3 配置 application.yml 文件
dubbo:
application:
name: dubbo-springboot-demo-provider
protocol:
name: dubbo
port: -1
registry:
id: zk-registry
address: zookeeper://127.0.0.1:2181
config-center:
address: zookeeper://127.0.0.1:2181
metadata-report:
address: zookeeper://127.0.0.1:2181
3.消费者
3.1 远程服务调用
@SpringBootApplication
@Service
@EnableDubbo
public class ConsumerApplication {
@DubboReference
private DemoService demoService;
public String doSayHello(String name) {
return demoService.sayHello(name);
}
public static void main(String[] args) {
ConfigurableApplicationContext context = SpringApplication.run(ConsumerApplication.class, args);
ConsumerApplication application = context.getBean(ConsumerApplication.class);
String result = application.doSayHello("world");
System.out.println("result: " + result);
}
}
3.2 配置 application.yml
dubbo:
application:
name: dubbo-springboot-demo-consumer
protocol:
name: dubbo
port: -1
registry:
id: zk-registry
address: zookeeper://127.0.0.1:2181
config-center:
address: zookeeper://127.0.0.1:2181
metadata-report:
address: zookeeper://127.0.0.1:2181