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!

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