dubbo集成spring

Posted 2021-03-03 空山新雨后

 

dubbo集成spring

1.项目依赖

<dependency> <groupId>org.apache.dubbo</groupId> <artifactId>dubbo</artifactId> <version>2.7.5</version> </dependency> <dependency> <groupId>org.apache.dubbo</groupId> <artifactId>dubbo-dependencies-zookeeper</artifactId> <version>2.7.5</version> <type>pom</type> </dependency> <dependency> <groupId>cn.wjs</groupId> <artifactId>dubbo-xml-interface</artifactId> <version>1.0-SNAPSHOT</version> </dependency>

2.服务提供者

 

resource/spring下添加dubbo-provider.xml:

通过 Spring 配置引用远程服务

<dubbo:application metadata-type="remote" name="demo-provider"/> <dubbo:metadata-report address="zookeeper://127.0.0.1:2181"/> <!-- zk注册中心 --> <dubbo:registry address="zookeeper://127.0.0.1:2181"/> <dubbo:protocol name="dubbo"/> <bean id="demoService" class="cn.wjs.DemoServiceImpl"/> <!-- 生成远程服务代理，可以和本地bean一样使用demoService --> <dubbo:service interface="cn.wjs.DemoService" ref="demoService"/>

DemoServiceImpl: 

public class DemoServiceImpl implements DemoService { private static final Logger logger = LoggerFactory.getLogger(DemoServiceImpl.class); public String sayHello(String name) { logger.info("aaa"); return "Hello " + name; } }

public class Application { public static void main(String[] args) throws Exception { ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-provider.xml"); context.start(); System.in.read(); } }

 

3.服务消费者

resource/spring目录下添加dubbo-consumer.xml

通过 Spring 配置引用远程服务

<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://dubbo.apache.org/schema/dubbo" xmlns="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd"> <!-- 消费方应用名，用于计算依赖关系，不是匹配条件，不要与提供方一样 --> <dubbo:application name="demo-consumer"/> <dubbo:registry address="zookeeper://127.0.0.1:2181"/> <!-- 生成远程服务代理，可以和本地bean一样使用demoService --> <dubbo:reference id="demoService" check="false" interface="cn.wjs.DemoService"/> </beans>

applicaiton: 

public class Application { /** * In order to make sure multicast registry works, need to specify ‘-Djava.net.preferIPv4Stack=true‘ before * launch the application */ public static void main(String[] args) throws Exception { ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-consumer.xml"); context.start(); DemoService demoService = (DemoService) context.getBean("demoService"); // 获取远程服务代理 String hello = demoService.sayHello("world"); // 执行远程方法 System.out.println(hello); // 显示调用结果 } }

 

4.启动zookeeper注册中心

zookeeper3.4.14/bin/zkServer.sh start  

5.分别启动服务端和消费端

消费者启动成功后输出: hello world

 

github地址: 

服务端： dubbo-xml-provider

消费端： dubbo-xml-consumer

接口: dubbo-xml-interface

https://github.com/wujinsen/dubbo-learning