springcloud如何使用dubbo开发rpc服务及调用

springcloud如何使用dubbo开发rpc服务及调用

这篇文章主要介绍了springcloud如何使用dubbo开发rpc服务及调用,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

spring cloud中基于springboot开发的微服务,是基于http的rest接口,也可以开发基于dubbo的rpc接口。

一,创建goodsService模块

  1, 在创建的goodsService模块中再创建goodsServiceApi和goodsServiceServer模块

  2,在oodsServiceApi模块中定义接口 ,goodsServiceServer用于接口实现

  3,goodsServiceServer模块中pom文件引入相关依赖

<dependencies>
    <dependency>
      <groupId>net.biui</groupId>
      <artifactId>goods-service-api</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    </dependency>
    <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-starter-dubbo</artifactId>
    </dependency>
  </dependencies>

4,goodsServiceServer中添加配置

spring:
 application:
  name: goods-service
 cloud:
  nacos:
   discovery:
    server-addr: 127.0.0.1:8848
    namespace: c22e5019-0bee-43b1-b80b-fc0b9d847501

dubbo:
 registry:
  address: nacos://127.0.0.1:8848
 scan:
  base-packages: net.biui.impl
 protocol:
  port: 20881
  name: dubbo

5,goodsServiceServer编写接口实现

@org.apache.dubbo.config.annotation.Service
public class GoodsImpl implements GoodsApi {
  public String getGoodsName() {
    return "商品一";
  }
}

6,goodsServiceServer编写启动类

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

启动后,dubbo服务会自动注册到nacos服务发现中心

二,创建调用dubbo服务的模块

  1,new -> module -> 填写信息 -> finish

  2,添加pom依赖

<dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    </dependency>
    <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-starter-dubbo</artifactId>
    </dependency>
    <dependency>
      <groupId>net.biui</groupId>
      <artifactId>goods-service-api</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>
  </dependencies>

3,添加配置

spring:
 application:
  name: demo-dubbo
 cloud:
  nacos:
   discovery:
    server-addr: 127.0.0.1:8848
    namespace: c22e5019-0bee-43b1-b80b-fc0b9d847501

4,编写controller调用dubbo服务

@RestController
@RequestMapping("/demo")
public class demoController {

  @org.apache.dubbo.config.annotation.Reference
  GoodsApi goodsApi;

  @GetMapping("/test")
  public String test(){
    return "test " + goodsApi.getGoodsName();
  }
}

5,编写启动类

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

启动后,demo-dubbo服务也会自动注册到nacos(因为nacos.register.enable默认为true,即代表自动注册,可以只订阅,不注册),对应接口返回了dubbo服务返回的信息!

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持云海天教程。