SpringBoot2.1.9+dubbo2.7.3+Nacos1.1.4构建你的微服务体系-阿里云开发者社区

SpringBoot2.1.9+dubbo2.7.3+Nacos1.1.4构建你的微服务体系

2021-12-07 289

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简介： 使用最新版的DUBBO构建你的微服务体系!

NACOS注册中心

从github下载最新版本的nacos

上传至服务器并解压

单机启动sh startup.sh -m standalone

nacos 控制台访问地址http://192.168.136.129:8848/nacos,使用账号nacos/nacos登录并访问

项目框架

本次案例包含三个组件

公共接口层 dubbo-api

生产者 dubbo-provider

消费者 dubbo-consumer 代码目录如下：

父目录dubbo-demo

父目录主要是定义公共组件依赖，版本号，pom文件如下

<projectxmlns="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><packaging>pom</packaging><modules><module>dubbo-api</module><module>dubbo-provider</module><module>dubbo-consumer</module></modules><groupId>com.jianzh5</groupId><artifactId>dubbo-demo</artifactId><version>1.0-SNAPSHOT</version><properties><java.version>1.8</java.version><netty-all.version>4.0.35.Final</netty-all.version><spring-boot.version>2.1.9.RELEASE</spring-boot.version><dubbo.version>2.7.3</dubbo.version><nacos-client.version>1.1.4</nacos-client.version></properties><dependencyManagement><dependencies><!--SpringBoot--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-dependencies</artifactId><version>${spring-boot.version}</version><type>pom</type><scope>import</scope></dependency><!--ApacheDubbo--><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-dependencies-bom</artifactId><version>${dubbo.version}</version><type>pom</type><scope>import</scope></dependency><!--DubboRegistryNacos--><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-registry-nacos</artifactId><version>${dubbo.version}</version></dependency><dependency><groupId>com.alibaba.nacos</groupId><artifactId>nacos-client</artifactId><version>${nacos-client.version}</version></dependency><!--DubboSpringBootStarter--><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-spring-boot-starter</artifactId><version>${dubbo.version}</version></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo</artifactId><version>${dubbo.version}</version><exclusions><exclusion><groupId>org.springframework</groupId><artifactId>spring</artifactId></exclusion><exclusion><groupId>javax.servlet</groupId><artifactId>servlet-api</artifactId></exclusion><exclusion><groupId>log4j</groupId><artifactId>log4j</artifactId></exclusion></exclusions></dependency><!--接口--><dependency><groupId>com.jianzh5</groupId><artifactId>dubbo-api</artifactId><version>1.0-SNAPSHOT</version></dependency></dependencies></dependencyManagement><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>${spring-boot.version}</version><executions><execution><goals><goal>repackage</goal></goals></execution></executions></plugin></plugins></build></project>

在pom文件中直接依赖接口，这样生产者和消费者都可以使用了

接口层dubbo-api定义

pom

<projectxmlns="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>dubbo-demo</artifactId><groupId>com.jianzh5</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><groupId>com.jianzh5</groupId><artifactId>dubbo-api</artifactId><packaging>jar</packaging></project>

定义真实的接口

/*** @author jianzh5* @date 2019/11/5 10:45*/publicinterfaceHelloService {
StringsayHello();
}

生产者dubbo-provider

pom

<projectxmlns="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>dubbo-demo</artifactId><groupId>com.jianzh5</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><groupId>com.jianzh5</groupId><artifactId>dubbo-provider</artifactId><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><!--Dubbo--><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-spring-boot-starter</artifactId></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo</artifactId></dependency><!--DubboRegistryNacos--><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-registry-nacos</artifactId></dependency><dependency><groupId>com.alibaba.nacos</groupId><artifactId>nacos-client</artifactId></dependency><dependency><groupId>com.jianzh5</groupId><artifactId>dubbo-api</artifactId></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

配置文件application.xml

dubbo.application.name=dubbo-providerdubbo.registry.address=nacos://192.168.136.129:8848dubbo.scan.base-packages=com.jianzh5.provider.service.impldubbo.protocol.port=20881dubbo.protocol.name=dubbo

接口实现

@ServicepublicclassHelloServiceImplimplementsHelloService {
publicStringsayHello() {
return"欢迎关注微信公众号：JAVA日知录";
    }
}

注意这里的@service引用的是org.apache.dubbo.config.annotation.Service,不要引用错了

启动类

@SpringBootApplication@EnableDubbopublicclassPrivoderBootstrap {
publicstaticvoidmain(String[] args) {
SpringApplication.run(PrivoderBootstrap.class, args);
    }
}

需要引入@EnableDubbo注解

消费者dubbo-consumer

pom

<projectxmlns="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>dubbo-demo</artifactId><groupId>com.jianzh5</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><groupId>com.jianzh5</groupId><artifactId>dubbo-consumer</artifactId><dependencies><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><!--Dubbo--><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-spring-boot-starter</artifactId></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo</artifactId></dependency><!--DubboRegistryNacos--><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-registry-nacos</artifactId></dependency><dependency><groupId>com.alibaba.nacos</groupId><artifactId>nacos-client</artifactId></dependency><dependency><groupId>com.jianzh5</groupId><artifactId>dubbo-api</artifactId></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

配置文件application.properties

spring.application.name=dubbo-consumerdubbo.registry.address=nacos://192.168.136.129:8848server.port=9090

消费者HelloController

/*** @author jianzh5* @date 2019/11/5 11:29*/@RestControllerpublicclassHelloController {
@ReferenceprivateHelloServicehelloService;
@GetMapping("/sayHello")
publicStringsayHello(){
returnhelloService.sayHello();
    }
}

使用@Reference注解注入HelloService

接口启动类

@SpringBootApplicationpublicclassConsumerBootstrap {
publicstaticvoidmain(String[] args) {
SpringApplication.run(ConsumerBootstrap.class, args);
    }
}

项目启动

启动生产者 dubbo-provider

启动消费者 dubbo-consumer

查看nacos控制台，观察是否注册

访问浏览器http://localhost:9090/sayHello查看接口返回

SpringBoot2.1.9+dubbo2.7.3+Nacos1.1.4构建你的微服务体系

NACOS注册中心

项目框架

父目录dubbo-demo

接口层dubbo-api定义

生产者dubbo-provider

消费者dubbo-consumer

项目启动

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