Spring Boot 整合 Dubbo3 + Nacos 2.4.0

准备工作：Nacos

一、前置工作

安装Nacos，参考：Nacos 快速开始
此次安装 Nacos 最新版本：2.4.0 单机版
安装教程：Linux 安装 nacos 2.4.0-CSDN博客

二、创建配置文件

创建命名空间

新增配置文件

dubbo:application:id: tyron-dubbo3-consumername: tyron-dubbo3-consumerserialize-check-status: WARNregistry:address: nacos://${nacos.config.server-addr}parameters.namespace: ${nacos.config.namespace}

server:port: 5656dubbo:application:id: tyron-dubbo3-providername: tyron-dubbo3-providerserialize-check-status: WARNprotocol:id: dubboname: dubbohost: 127.0.0.1port: 7788serialization: hessian2registry:address: nacos://${nacos.config.server-addr}parameters.namespace: ${nacos.config.namespace}dubboParams: tyron

三、搭建项目

3.1、父 pom

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.tyron</groupId><artifactId>dubbo3-demo</artifactId><packaging>pom</packaging><version>1.0-SNAPSHOT</version><modules><module>dubbo3-provider</module><module>dubbo3-consumer</module><module>dubbo3-api</module></modules><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><java.version>1.8</java.version><spring.boot.version>2.7.17</spring.boot.version><nacos.boot.version>0.2.12</nacos.boot.version><dubbo.version>3.2.9</dubbo.version></properties>
</project>

3.2、dubbo3-provider 服务提供者

pom.xml 文件，定义依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactId>dubbo3-demo</artifactId><groupId>com.tyron</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>dubbo3-provider</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target></properties><dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>${spring.boot.version}</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><dependencies><!-- spring boot starter --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!--nacos配置中心依赖--><dependency><groupId>com.alibaba.boot</groupId><artifactId>nacos-config-spring-boot-starter</artifactId><version>${nacos.boot.version}</version></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-spring-boot-starter</artifactId><version>${dubbo.version}</version><exclusions><exclusion><artifactId>javassist</artifactId><groupId>org.javassist</groupId></exclusion></exclusions></dependency><!-- dubbo整合nacos --><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-registry-nacos</artifactId><version>${dubbo.version}</version></dependency><!-- 自定义api --><dependency><groupId>com.tyron</groupId><artifactId>dubbo3-api</artifactId><version>1.0-SNAPSHOT</version><scope>compile</scope></dependency></dependencies>
</project>

配置文件 application.yaml ：nacos的配置文件

nacos:config:# 指定命名空间namespace: tyron-dubbo#配置服务地址server-addr: 192.168.1.8:8848#data-ids 为新增加的data-iddata-ids: dubbo3-provider#配置类型type: yaml#是否启动刷新配置autoRefresh: true#运行时启用bootstrap:enable: true

定义接口实现，通过@NacosValue 读取nacos的配置文件数据

package com.tyron.service.impl;import com.alibaba.nacos.api.config.annotation.NacosValue;
import com.tyron.dubbo3.api.DemoService;
import org.apache.dubbo.config.annotation.DubboService;@DubboService(version = "1.0.0")
public class DemoServiceImpl implements DemoService {@NacosValue(value = "${dubboParams}", autoRefreshed = true)private String dubboParams;@Overridepublic String getString() {return dubboParams;}
}

3.3、dubbo3-api 接口模块

dubbo 提供和调用本地方法一样的体验，所以需要提供api包

package com.tyron.dubbo3.api;public interface DemoService {String getString();
}

3.4、dubbo3-consumer 消费者

pom.xml 文件，定义依赖
同 dubbo3-provider 的定义：dubbo3-consumer/pom.xml
配置文件

nacos:config:# 指定命名空间namespace: tyron-dubbo#配置服务地址server-addr: 192.168.1.8:8848#data-ids 为新增加的data-iddata-id: dubbo3-consumer#配置类型type: yaml#是否启动刷新配置，开启之后可适应autoRefresh: true#运行时启用bootstrap:enable: true

消费者，调用api接口

package com.tyron.consumer;import com.tyron.dubbo3.api.DemoService;
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
public class DemoConsumer {@DubboReference(version = "1.0.0", timeout = 1000)private DemoService demoService;@GetMapping("/tyron-test")public String tyronTest() {return demoService.getString();}
}