共三个工程生产者服务、消费者服务、生产者和消费者共同依赖的接口工程打成jar供生产者和消费者依赖

1.1

spring-boot-maven-plugin插件classifier为exec表示构建可依赖的jar包及可启动的jar包

?xml

xmlnshttp://maven.apache.org/POM/4.0.0

xmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexsi:schemaLocationhttp://maven.apache.org/POM/4.0.0

https://maven.apache.org/xsd/maven-4.0.0.xsdmodelVersion4.0.0/modelVersionparentgroupIdhj.example/groupIdartifactIdspringboot-provider/artifactIdversion0.0.1-SNAPSHOT/versionrelativePath/

!--

--/parentartifactIdsample-api/artifactIdversion0.0.1-SNAPSHOT/versionnamesample-api/namedescriptionsample-api/descriptionpropertiesjava.version1.8/java.version/propertiesdependenciesdependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId/dependency/dependenciesbuildpluginsplugingroupIdorg.springframework.boot/groupIdartifactIdspring-boot-maven-plugin/artifactIdconfigurationclassifierexec/classifier/configuration/plugin/plugins/build/project1.2

公共接口

包括4个依赖接口依赖sample-api、nacos配置中心依赖spring-cloud-starter-alibaba-nacos-config、nacos注册中心依赖spring-cloud-starter-alibaba-nacos-discoveryspring-cloud

dubbo依赖spring-cloud-starter-dubbo

?xml

xmlnshttp://maven.apache.org/POM/4.0.0

xmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexsi:schemaLocationhttp://maven.apache.org/POM/4.0.0

https://maven.apache.org/xsd/maven-4.0.0.xsdmodelVersion4.0.0/modelVersionparentgroupIdhj.example/groupIdartifactIdspringboot-provider/artifactIdversion0.0.1-SNAPSHOT/versionrelativePath/

!--

--/parentartifactIdsample-provider/artifactIdversion0.0.1-SNAPSHOT/versionpackagingjar/packagingnamesample-provider/namedescriptionsample-provider/descriptionpropertiesjava.version1.8/java.version/propertiesdependenciesdependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId/dependencydependencygroupIdhj.example/groupIdartifactIdsample-api/artifactIdversion0.0.1-SNAPSHOT/version/dependency!--

nacos

--dependencygroupIdcom.alibaba.cloud/groupIdartifactIdspring-cloud-starter-alibaba-nacos-discovery/artifactIdversion2.2.5.RELEASE/version/dependencydependencygroupIdcom.alibaba.cloud/groupIdartifactIdspring-cloud-starter-alibaba-nacos-config/artifactIdversion2.2.5.RELEASE/version/dependencydependencygroupIdcom.alibaba.cloud/groupIdartifactIdspring-cloud-starter-dubbo/artifactIdversion2.2.5.RELEASE/version/dependency/dependenciesbuildpluginsplugingroupIdorg.springframework.boot/groupIdartifactIdspring-boot-maven-plugin/artifactIdconfigurationclassifierexec/classifier/configuration/plugin/plugins/build

/project2.

通过DubboService注解将dubbo服务注册到nacos上

dubbo配置如果不在bootstrap.properties上配置spring.cloud.nacos.config.prefix默认连接nacos配置中心的dubbo.properties配置文件

程序优先读取bootstrap.properties配置文件内容为

spring.cloud.nacos.config.server-addr127.0.0.1:8948

spring.cloud.nacos.config.usernamenacos

spring.cloud.nacos.config.passwordspring.cloud.nacos.config.enabledfalse

spring.application.namesample-provider

server.port8089spring.cloud.nacos.discovery.server-addr127.0.0.1:8948

spring.cloud.nacos.discovery.usernamenacos

spring.cloud.nacos.discovery.password

spring.cloud.nacos.discovery.servicesample-provider

启动类

hj.example.sampleprovider;import

org.apache.dubbo.config.spring.context.annotation.DubboComponentScan;

import

org.apache.dubbo.config.spring.context.annotation.EnableDubbo;

import

org.springframework.boot.SpringApplication;

import

org.springframework.boot.autoconfigure.SpringBootApplication;

import

org.springframework.cloud.client.discovery.EnableDiscoveryClient;

import

org.springframework.context.ConfigurableApplicationContext;DubboComponentScan

EnableDubbo(scanBasePackageshj.example.sampleprovider.sample)

public

Main.main(args);ConfigurableApplicationContext

context

SpringApplication.run(SampleProviderApplication.class,

args);String

context.getEnvironment().getProperty(info);System.out.println(

info);}

hj.example.sampleprovider.sample;import

hj.example.sample.IHelloService;

import

org.apache.dubbo.config.annotation.DubboService;

import

org.springframework.beans.factory.annotation.Value;DubboService

public

{Value(${dubbo.application.name})private

String

xmlnshttp://maven.apache.org/POM/4.0.0

xmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexsi:schemaLocationhttp://maven.apache.org/POM/4.0.0

https://maven.apache.org/xsd/maven-4.0.0.xsdmodelVersion4.0.0/modelVersionparentgroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-parent/artifactIdversion2.2.10.RELEASE/versionrelativePath/

!--

--/parentgroupIdhj.example/groupIdartifactIdsample-consumer/artifactIdversion0.0.1-SNAPSHOT/versionnamesample-consumer/namedescriptionsample-consumer/descriptionpropertiesjava.version1.8/java.version/propertiesdependenciesdependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter/artifactId/dependencydependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId/dependencydependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-test/artifactIdscopetest/scope/dependencydependencygroupIdhj.example/groupIdartifactIdsample-api/artifactIdversion0.0.1-SNAPSHOT/version/dependency!--

nacos

--dependencygroupIdcom.alibaba.cloud/groupIdartifactIdspring-cloud-starter-alibaba-nacos-discovery/artifactIdversion2.2.5.RELEASE/version/dependencydependencygroupIdcom.alibaba.cloud/groupIdartifactIdspring-cloud-starter-alibaba-nacos-config/artifactIdversion2.2.5.RELEASE/version/dependencydependencygroupIdcom.alibaba.cloud/groupIdartifactIdspring-cloud-starter-dubbo/artifactIdversion2.2.5.RELEASE/version/dependency/dependenciesbuildpluginsplugingroupIdorg.springframework.boot/groupIdartifactIdspring-boot-maven-plugin/artifactIdconfigurationclassifierexec/classifier/configuration/plugin/plugins/build/project3.2

nacos及dubbo配置

配置中心配置bootstrap.properties及nacos配置中心文件dubboConsumer.properties

bootstrap.properties

spring.cloud.nacos.config.server-addr127.0.0.1:8948

spring.cloud.nacos.config.usernamenacos

spring.cloud.nacos.config.passwordspring.cloud.nacos.config.prefixdubboConsumer.properties

3.3

使用注解DubboReference调用dubbo服务测试controller

package

hj.example.sampleconsumer.controller;import

hj.example.sample.IHelloService;

import

org.apache.dubbo.config.annotation.DubboReference;

import

org.springframework.http.HttpStatus;

import

org.springframework.http.ResponseEntity;

import

org.springframework.web.bind.annotation.RequestMapping;

import

org.springframework.web.bind.annotation.RestController;RestController

public

iHelloService;RequestMapping(/test)public

ResponseEntityObject

iHelloService.sayHello(hj);return

new

hj.example.sampleconsumer;import

org.apache.dubbo.config.spring.context.annotation.EnableDubbo;

import

org.springframework.boot.SpringApplication;

import

org.springframework.boot.autoconfigure.SpringBootApplication;

import

org.springframework.cloud.client.discovery.EnableDiscoveryClient;SpringBootApplication

EnableDubbo

{SpringApplication.run(SampleConsumerApplication.class,

args);}