Apache Dubbo 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 :)
- Transparent interface based RPC
- Intelligent load balancing
- Automatic service registration and discovery
- High extensibility
- Runtime traffic routing
- Visualized service governance
The following code snippet comes from Dubbo Samples. You may clone the sample project and step into dubbo-samples-api
sub directory before read on.
# git clone https://github.com/apache/dubbo-samples.git
# cd dubbo-samples/dubbo-samples-api
There's a README file under dubbo-samples-api
directory. Read it and try this sample out by following the instructions.
<properties>
<dubbo.version>2.7.4.1</dubbo.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo</artifactId>
<version>${dubbo.version}</version>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-dependencies-zookeeper</artifactId>
<version>${dubbo.version}</version>
<type>pom</type>
</dependency>
</dependencies>
package org.apache.dubbo.samples.api;
public interface GreetingService {
String sayHi(String name);
}
See api/GreetingService.java on GitHub.
package org.apache.dubbo.samples.provider;
import org.apache.dubbo.samples.api.GreetingsService;
public class GreetingsServiceImpl implements GreetingsService {
@Override
public String sayHi(String name) {
return "hi, " + name;
}
}
See provider/GreetingServiceImpl.java on GitHub.
package org.apache.dubbo.samples.provider;
import org.apache.dubbo.config.ApplicationConfig;
import org.apache.dubbo.config.RegistryConfig;
import org.apache.dubbo.config.ServiceConfig;
import org.apache.dubbo.samples.api.GreetingsService;
import java.util.concurrent.CountDownLatch;
public class Application {
private static String zookeeperHost = System.getProperty("zookeeper.address", "127.0.0.1");
public static void main(String[] args) throws Exception {
ServiceConfig<GreetingsService> service = new ServiceConfig<>();
service.setApplication(new ApplicationConfig("first-dubbo-provider"));
service.setRegistry(new RegistryConfig("zookeeper://" + zookeeperHost + ":2181"));
service.setInterface(GreetingsService.class);
service.setRef(new GreetingsServiceImpl());
service.export();
System.out.println("dubbo service started");
new CountDownLatch(1).await();
}
}
See provider/Application.java on GitHub.
# mvn clean package
# mvn -Djava.net.preferIPv4Stack=true -Dexec.mainClass=org.apache.dubbo.samples.provider.Application exec:java
package org.apache.dubbo.samples.client;
import org.apache.dubbo.config.ApplicationConfig;
import org.apache.dubbo.config.ReferenceConfig;
import org.apache.dubbo.config.RegistryConfig;
import org.apache.dubbo.samples.api.GreetingsService;
public class Application {
private static String zookeeperHost = System.getProperty("zookeeper.address", "127.0.0.1");
public static void main(String[] args) {
ReferenceConfig<GreetingsService> reference = new ReferenceConfig<>();
reference.setApplication(new ApplicationConfig("first-dubbo-consumer"));
reference.setRegistry(new RegistryConfig("zookeeper://" + zookeeperHost + ":2181"));
reference.setInterface(GreetingsService.class);
GreetingsService service = reference.get();
String message = service.sayHi("dubbo");
System.out.println(message);
}
}
See consumer/Application.java on GitHub.
# mvn clean package
# mvn -Djava.net.preferIPv4Stack=true -Dexec.mainClass=org.apache.dubbo.samples.client.Application exec:java
The consumer will print out hi, dubbo
on the screen.
- Your first Dubbo application - A 101 tutorial to reveal more details, with the same code above.
- Dubbo user manual - How to use Dubbo and all its features.
- Dubbo developer guide - How to involve in Dubbo development.
- Dubbo admin manual - How to admin and manage Dubbo services.
If you want to try out the cutting-edge features, you can build with the following commands. (Java 1.8 is required to build the master branch)
mvn clean install
-
Mailing list:
- dev list: for dev/user discussion. subscribe, unsubscribe, archive, guide
-
Bugs: Issues
-
Gitter: Gitter channel
-
Twitter: @ApacheDubbo
See CONTRIBUTING for details on submitting patches and the contribution workflow.
- Take a look at issues with tag called
Good first issue
orHelp 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-admin/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!
Please follow the template for reporting any issues.
Please report security vulnerability to us privately.
- Dubbo Ecosystem Entry - A GitHub group
dubbo
to gather all Dubbo relevant projects not appropriate in apache group yet - Dubbo Website - Apache Dubbo official website
- Dubbo Samples - samples for Apache Dubbo
- Dubbo Spring Boot - Spring Boot Project for Dubbo
- Dubbo Admin - The reference implementation for Dubbo admin
Apache Dubbo is under the Apache 2.0 license. See the LICENSE file for details.
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