初用 springcloud 集成 nacos 做 dubbo 注册中心 手记

参考gper 视频和 自己的一些实践

记录关键的点，需要注意 版本冲突 见 springcloud + nacos -- 版本选择

provider

1、添加pom依赖,

<!--        dubbo -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-dubbo</artifactId>
            <version>2.2.1.RELEASE</version>
        </dependency>
<!--nacos-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <version>2.2.1.RELEASE</version>
        </dependency>


<dependencyManagement>
  <dependencies>
    <dependency>
      <!-- Import dependency management from Spring Boot -->
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-dependencies</artifactId>
      <version>2.3.0.RELEASE</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>

2、配置 application.properties

spring.application.name=spring-cloud-dubbo-sample-provider-me

dubbo.scan.base-packages=com.xxx.springclouddubbosampleprovider.service

dubbo.protocol.port=20882

dubbo.protocol.name=dubbo

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

3、提供接口 实现，添加 dubbo 注解

@org.apache.dubbo.config.annotation.Service
public class SayHelloServiceImpl implements ISayHelloService {

    @Override
    public String sayHello(String msg) {
        return "hello,GP!!";
    }
}

4、配置 启动类

@EnableDiscoveryClient
@SpringBootApplication
public class SpringCloudDubboSampleProviderApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringCloudDubboSampleProviderApplication.class, args);
    }

}

consumer

1、配置pom依赖

 <!--        dubbo -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-dubbo</artifactId>
            <version>2.2.1.RELEASE</version>
        </dependency>
        <!--nacos-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <version>2.2.1.RELEASE</version>
        </dependency>

2、配置 application.properties

spring.application.name=spring-cloud-dubbo-sample-consumer-me

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

3、启动类

@RestController
@SpringBootApplication
public class SpringCloudDubboSampleConsumerApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringCloudDubboSampleConsumerApplication.class, args);
    }

    @org.apache.dubbo.config.annotation.Reference
    ISayHelloService sayHelloService;

    @GetMapping("say")
    public String sayHello() {

        return sayHelloService.sayHello("hred");
    }

}