比较spring cloud和dubbo，各自的优缺点是什么 - 趁年轻再疯狂一次吧 - CSDN博客 https://blog.csdn.net/u010664947/article/details/80007767

网易考拉海购Dubbok框架优化详解_存储_基础信息化_文章_e-works数字化企业网 http://articles.e-works.net.cn/storage/article133435.htm

Features

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

Getting started

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/dubbo/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.

Maven dependency

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>dubbo</artifactId> <version>2.6.4</version> </dependency>

Define service interfaces

package org.apache.dubbo.demo.api;

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

See api/GreetingService.java on GitHub.

Implement service interface for the 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; } }

See provider/GreetingServiceImpl.java on GitHub.

Start 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 Application { 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(); } }

See provider/Application.java on GitHub.

Build and run the provider

# mvn clean package
# mvn -Djava.net.preferIPv4Stack=true -Dexec.mainClass=org.apache.dubbo.demo.provider.Application exec:java

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 Application { 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")); } }

Build and run the consumer

# mvn clean package
# mvn -Djava.net.preferIPv4Stack=true -Dexec.mainClass=org.apache.dubbo.demo.consumer.Application exec:java

The consumer will print out Hello world on the screen.

See consumer/Application.java on GitHub.

Next steps

• 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 invovle in Dubbo development.
• Dubbo admin manual - How to admin and manage Dubbo services.

Contact

• Mailing list:

  • dev list: for dev/user discussion. subscribe, unsubscribe, archive, guide

• Bugs: Issues

• Gitter: Gitter channel

• Twitter: @ApacheDubbo

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 dev@dubbo.incubator.apache.org to let us know!

Reporting bugs

Please follow the template for reporting any issues.

Reporting a security vulnerability

Please report security vulnerability to us privately.

Dubbo eco system

• Dubbo Ecosystem Entry - A GitHub group dubbo to gather all Dubbo relevant projects not appropriate in apache group yet
• 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 admin