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Apache Dubbo (incubating) Project

Build Status codecov Gitter license maven

Apache Dubbo (incubating) is a high-performance, java based open source RPC framework. Please visit official site for quick start and documentations, as well as Wiki for news, FAQ, and release notes.

We are now collecting dubbo user info in order to help us to improve dubbo better, pls. kindly help us by providing yours on issue#1012: Wanted: who's using dubbo, thanks :)

Architecture

Architecture

Features

  • Transparent interface based RPC
  • Intelligent load balancing
  • Automatic service registration and discovery
  • High extensibility
  • Runtime traffic routing
  • Visualized service governance

Getting started

Maven dependency

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>dubbo</artifactId>
    <version>2.6.2</version>
</dependency>

Defining service interfaces

package org.apache.dubbo.demo;

public interface GreetingService {
    String sayHello(String name);
}

Implement interface in service provider

package org.apache.dubbo.demo.provider;
 
import org.apache.dubbo.demo.GreetingService;
 
public class GreetingServiceImpl implements GreetingService {
    public String sayHello(String name) {
        return "Hello " + name;
    }
}

Starting service provider

package org.apache.dubbo.demo.provider;

import com.alibaba.dubbo.config.ApplicationConfig;
import com.alibaba.dubbo.config.RegistryConfig;
import com.alibaba.dubbo.config.ServiceConfig;
import org.apache.dubbo.demo.GreetingService;

import java.io.IOException;
 
public class Provider {

    public static void main(String[] args) throws IOException {
        ServiceConfig<GreetingService> serviceConfig = new ServiceConfig<GreetingService>();
        serviceConfig.setApplication(new ApplicationConfig("first-dubbo-provider"));
        serviceConfig.setRegistry(new RegistryConfig("multicast://224.5.6.7:1234"));
        serviceConfig.setInterface(GreetingService.class);
        serviceConfig.setRef(new GreetingServiceImpl());
        serviceConfig.export();
        System.in.read();
    }
}

Call remote service in consumer

package org.apache.dubbo.demo.consumer;

import com.alibaba.dubbo.config.ApplicationConfig;
import com.alibaba.dubbo.config.ReferenceConfig;
import com.alibaba.dubbo.config.RegistryConfig;
import org.apache.dubbo.demo.GreetingService;

public class Consumer {
    public static void main(String[] args) {
        ReferenceConfig<GreetingService> referenceConfig = new ReferenceConfig<GreetingService>();
        referenceConfig.setApplication(new ApplicationConfig("first-dubbo-consumer"));
        referenceConfig.setRegistry(new RegistryConfig("multicast://224.5.6.7:1234"));
        referenceConfig.setInterface(GreetingService.class);
        GreetingService greetingService = referenceConfig.get();
        System.out.println(greetingService.sayHello("world"));
    }
}

Next steps

Contact

Contributing

See CONTRIBUTING for details on submitting patches and the contribution workflow.

How can I contribute?

  • Take a look at issues with tag called Good first issue or Help wanted.
  • Join the discussion on mailing list, subscription guide.
  • Answer questions on issues.
  • Fix bugs reported on issues, and send us pull request.
  • Review the existing pull request.
  • Improve the website, typically we need
    • blog post
    • translation on documentation
    • use cases about how Dubbo is being used in enterprise system.
  • Improve the dubbo-ops/dubbo-monitor.
  • Contribute to the projects listed in ecosystem.
  • Any form of contribution that is not mentioned above.
  • If you would like to contribute, please send an email to [email protected] to let us know!

Reporting bugs

Please follow the template for reporting any issues.

Reporting a security vulnerability

Please report security vulnerability to [email protected] (private mailing list).

Ecosystem

  • Dubbo Website - Apache Dubbo (incubating) official website
  • Dubbo Samples - samples for Apache Dubbo (incubating)
  • Dubbo Spring Boot - Spring Boot Project for Dubbo
  • Dubbo OPS - The reference implementation for dubbo ops (dubbo-admin, dubbo-monitor, dubbo-registry-simple, etc.)

Language

License

Apache Dubbo is under the Apache 2.0 license. See the LICENSE file for details.