springcloud中使用dubbo開發rpc服務及調用

時間 2020-05-07

標籤 springcloud 使用 dubbo 開發 rpc 服務調用欄目 Dubbo 简体版

原文原文鏈接

spring cloud中基於springboot開發的微服務，是基於http的rest接口，也能夠開發基於dubbo的rpc接口。web

一，建立goodsService模塊spring

　　1，在建立的goodsService模塊中再建立goodsServiceApi和goodsServiceServer模塊apache

　　2，在oodsServiceApi模塊中定義接口，goodsServiceServer用於接口實現api

　　3，goodsServiceServer模塊中pom文件引入相關依賴springboot

<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app

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編寫接口實現spring-boot

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

　　6，goodsServiceServer編寫啓動類微服務

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

啓動後，dubbo服務會自動註冊到nacos服務發現中心ui

二，建立調用dubbo服務的模塊spa

　　1，new -> module -> 填寫信息 -> finish

　　2，添加pom依賴

<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，編寫controller調用dubbo服務

@RestController @RequestMapping("/demo") public class demoController { @org.apache.dubbo.config.annotation.Reference GoodsApi goodsApi; @GetMapping("/test") public String test(){ return "test " + goodsApi.getGoodsName(); } }

　　5，編寫啓動類

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

啓動後，demo-dubbo服務也會自動註冊到nacos（由於nacos.register.enable默認爲true，即表明自動註冊，能夠只訂閱，不註冊），對應接口返回了dubbo服務返回的信息！