Dubbo Project
Dubbo是阿里巴巴开源的基于Java的高性能RPC框架。请访问 dubbo.io 获取快速入门和其他信息。
现在我们正在收集dubbo用户信息，以帮助我们更好地改进dubbo，请通过提供问题＃1012：通缉：谁在使用dubbo 为您提供帮助，感谢：）
特性
- 基于透明接口的RPC
- 智能负载均衡
- 自动服务注册和发现
- 可扩展性高
- 运行时流量路由
- 可视化的服务治理
入门
以下代码段来自Dubbo Samples。 在继续阅读之前，您可以克隆示例项目并进入dubbo-samples-api子目录。
#git clone https://github.com/dubbo/dubbo-samples.git
#cd dubbo-samples/dubbo-samples-api
dubbo-samples-api目录下有一个README文件。 阅读并按照说明尝试此示例。
Maven依赖
<properties>
<dubbo.version>2.6.5</dubbo.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo-dependencies-bom</artifactId>
<version>${dubbo.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>${dubbo.version}</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
</dependency>
</dependencies>
定义服务接口
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.
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
消费者将在屏幕上打印出Hello world。
See consumer/Application.java on GitHub.
链接
- Dubbo生态系统入口
- Dubbo Spring Boot - Dubbo的Spring Boot项目。
- Dubbo ops - Dubbo的操作和参考实施。包含dubbo-admin，dubbo-monitor模块。
- Gitter频道
- 邮件列表
- 您的第一个Dubbo应用程序 -- 一个101教程，用于显示更多详细信息，使用相同的代码。
- Dubbo用户手册
- Dubbo开发人员指南
- Dubbo管理员手册
