springboot整合dubbo与nacos学习笔记

provider端

1. 添加依赖

   <dependency>
       <groupId>com.alibaba.boot</groupId>
       <artifactId>nacos-discovery-spring-boot-starter</artifactId>
       <exclusions>
           <exclusion>
               <artifactId>spring-context-support</artifactId>
               <groupId>com.alibaba.spring</groupId>
           </exclusion>
       </exclusions>
       <version>0.2.7</version>
   </dependency>
   <dependency>
       <groupId>org.apache.dubbo</groupId>
       <artifactId>dubbo-spring-boot-starter</artifactId>
       <version>2.7.6</version>
   </dependency>
   

2. 添加配置（application.properties）

   spring.application.name=sample-account-service
   dubbo.application.name=sample-account-service
   dubbo.registry.address=nacos://192.168.221.128:8848
   dubbo.protocol.name=dubbo
   dubbo.protocol.port=20880
   # nacos discovery config
   nacos.discovery.server-addr=192.168.221.128:8848
   

3. 添加注解

   @DubboComponentScan
   @SpringBootApplication
   public class NacosSampleProviderApp {
       public static void main(String[] args) {
           SpringApplication.run(NacosSampleProviderApp.class, args) ;
       }
   }
   

4. 暴露服务

   @RequiredArgsConstructor(onConstructor = @__(@Autowired))
   @org.apache.dubbo.config.annotation.Service(version = "1.0.1", group = "yicj")
   public class AccountServiceImpl implements IAccountService {
       // todo
   }
   

consumer端

1. 添加依赖: 同provider
2. 添加配置：（其中dubbo.protocol.port端口需要修改，否则端口冲突）

   spring.application.name=sample-order-service
   server.port=9091
   # dubbo config
   dubbo.application.name=${spring.application.name}
   dubbo.protocol.name=dubbo
   dubbo.protocol.port=20881
   dubbo.registry.address=nacos://192.168.221.128:8848
   # nacos discovery config
   nacos.discovery.server-addr=192.168.221.128:8848
   

3. 添加注解：同provider
4. 使用远程服务

   @Reference(version = "1.0.1", group = "yicj")
   private IAccountService accountService ;
   

5. 注意dubbo-spring-boot-starter的2.7.6注册到nacos上，调用服务的时候指定group，否则报错找不到远程服务