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

简单几步使用最新版本的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

父目录主要是定义公共组件依赖，版本号，pom文件如下

<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>
    <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>

            <!-- Apache Dubbo  -->
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-dependencies-bom</artifactId>
                <version>${dubbo.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- Dubbo Registry Nacos -->
            <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>


            <!-- Dubbo Spring Boot Starter -->
            <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

dubbo-demo com.jianzh5 1.0-SNAPSHOT 4.0.0 com.jianzh5 dubbo-api jar
定义真实的接口

/**
- @author jianzh5
- @date 2019/11/5 10:45
*/ public interface HelloService { String sayHello(); }

生产者dubbo-provider

pom

dubbo-demo com.jianzh5 1.0-SNAPSHOT 4.0.0 com.jianzh5 dubbo-provider org.springframework.boot spring-boot-starter org.apache.dubbo dubbo-spring-boot-starter org.apache.dubbo dubbo org.apache.dubbo dubbo-registry-nacos com.alibaba.nacos nacos-client com.jianzh5 dubbo-api org.springframework.boot spring-boot-maven-plugin
配置文件application.xml

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

接口实现

@Service public class HelloServiceImpl implements HelloService {

public String sayHello() {
    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 @EnableDubbo public class PrivoderBootstrap { public static void main(String[] args) { SpringApplication.run(PrivoderBootstrap.class, args); } }

需要引入@EnableDubbo注解

消费者dubbo-consumer

pom

dubbo-demo com.jianzh5 1.0-SNAPSHOT 4.0.0 com.jianzh5 dubbo-consumer org.springframework.boot spring-boot-starter org.springframework.boot spring-boot-starter-web org.apache.dubbo dubbo-spring-boot-starter org.apache.dubbo dubbo org.apache.dubbo dubbo-registry-nacos com.alibaba.nacos nacos-client com.jianzh5 dubbo-api org.springframework.boot spring-boot-maven-plugin
配置文件application.properties

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

消费者HelloController

/**

@author jianzh5
@date 2019/11/5 11:29

*/ @RestController public class HelloController {

@Reference
private HelloService helloService;

@GetMapping("/sayHello")
public String sayHello(){
    return helloService.sayHello();
}

}

使用@Reference注解注入HelloService

接口启动类

@SpringBootApplication public class ConsumerBootstrap {

public static void main(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

欢迎关注我的个人公众号：JAVA日知录

NACOS注册中心

项目框架

父目录

接口层dubbo-api定义

生产者dubbo-provider

消费者dubbo-consumer

项目启动

Andriod第三方源码分析

Android进阶之旅-(Framework源码分析)

热门文章