springcloud中使用dubbo开发rpc服务及调用
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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