SpringBoot整合dubbo以及nacos

SpringBoot整合dubbo以及nacos

一、引入依赖

注意，我们这边整合的时候分为消费者，生产者和中间服务接口层

1、父POM文件

<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>4.0.0modelVersion>

    <groupId>com.flygroupId>
    <artifactId>spring-boot-dubboartifactId>
    <version>1.0-SNAPSHOTversion>
    <packaging>pompackaging>
    <modules>
        <module>spring-boot-dubbo-interfacemodule>
        <module>spring-boot-dubbo-providermodule>
        <module>spring-boot-dubbo-consumermodule>
    modules>

    <properties>
        <java.version>1.8java.version>
        <dubbo.version>3.0.7dubbo.version>
        <spring-boot.version>2.6.7spring-boot.version>
        <lombok.version>1.18.24lombok.version>
    properties>

    <dependencyManagement>
        <dependencies>
            
            <dependency>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-dependenciesartifactId>
                <version>${spring-boot.version}version>
                <type>pomtype>
                <scope>importscope>
            dependency>

            
            <dependency>
                <groupId>org.apache.dubbogroupId>
                <artifactId>dubbo-spring-boot-starterartifactId>
                <version>${dubbo.version}version>
            dependency>

            <dependency>
                <groupId>org.projectlombokgroupId>
                <artifactId>lombokartifactId>
                <version>${lombok.version}version>
            dependency>

            
            <dependency>
                <groupId>org.apache.dubbogroupId>
                <artifactId>dubbo-registry-nacosartifactId>
                <version>${dubbo.version}version>
            dependency>
        dependencies>
    dependencyManagement>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
            plugin>
        plugins>
    build>

project>

2、生产者依赖

<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>4.0.0modelVersion>
    <parent>
        <groupId>com.flygroupId>
        <artifactId>spring-boot-dubboartifactId>
        <version>1.0-SNAPSHOTversion>
    parent>

    <artifactId>spring-boot-dubbo-providerartifactId>

    <properties>
        <maven.compiler.source>8maven.compiler.source>
        <maven.compiler.target>8maven.compiler.target>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
    properties>

    <dependencies>

        <dependency>
            <groupId>com.flygroupId>
            <artifactId>spring-boot-dubbo-interfaceartifactId>
            <version>1.0-SNAPSHOTversion>
        dependency>

        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starterartifactId>
        dependency>

        
        <dependency>
            <groupId>org.apache.dubbogroupId>
            <artifactId>dubbo-spring-boot-starterartifactId>
        dependency>

        <dependency>
            <groupId>org.apache.dubbogroupId>
            <artifactId>dubbo-registry-nacosartifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.dubbogroupId>
                    <artifactId>dubbo-commonartifactId>
                exclusion>
                <exclusion>
                    <groupId>org.apache.dubbogroupId>
                    <artifactId>dubbo-remoting-apiartifactId>
                exclusion>
                <exclusion>
                    <groupId>log4jgroupId>
                    <artifactId>log4jartifactId>
                exclusion>
            exclusions>
        dependency>
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <optional>trueoptional>
        dependency>
    dependencies>

project>

3、接口抽象模块依赖

我这边是用到lombok才依赖的，如果不需要其他依赖就可以不用引入，总之这边按需引入

<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>4.0.0modelVersion>
    <parent>
        <groupId>com.flygroupId>
        <artifactId>spring-boot-dubboartifactId>
        <version>1.0-SNAPSHOTversion>
    parent>

    <artifactId>spring-boot-dubbo-interfaceartifactId>

    <properties>
        <maven.compiler.source>8maven.compiler.source>
        <maven.compiler.target>8maven.compiler.target>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
    properties>

    <dependencies>
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
        dependency>
    dependencies>

project>

4、消费者端依赖

<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>4.0.0modelVersion>
    <parent>
        <groupId>com.flygroupId>
        <artifactId>spring-boot-dubboartifactId>
        <version>1.0-SNAPSHOTversion>
    parent>

    <artifactId>spring-boot-dubbo-consumerartifactId>

    <properties>
        <maven.compiler.source>8maven.compiler.source>
        <maven.compiler.target>8maven.compiler.target>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
    properties>

    <dependencies>

        <dependency>
            <groupId>com.flygroupId>
            <artifactId>spring-boot-dubbo-interfaceartifactId>
            <version>1.0-SNAPSHOTversion>
        dependency>

        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starterartifactId>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>

        
        <dependency>
            <groupId>org.apache.dubbogroupId>
            <artifactId>dubbo-spring-boot-starterartifactId>
        dependency>

        <dependency>
            <groupId>org.apache.dubbogroupId>
            <artifactId>dubbo-registry-nacosartifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.dubbogroupId>
                    <artifactId>dubbo-commonartifactId>
                exclusion>
                <exclusion>
                    <groupId>org.apache.dubbogroupId>
                    <artifactId>dubbo-remoting-apiartifactId>
                exclusion>
                <exclusion>
                    <groupId>log4jgroupId>
                    <artifactId>log4jartifactId>
                exclusion>
            exclusions>
        dependency>

    dependencies>

project>

二、对应模块的配置文件

这边配置文件含义因为篇幅原因就不多做介绍，后面会出一期介绍的，这边大家自己也可以搜下

1、生产者对应配置文件

server:
  port: 8001


spring:
  application:
    name: spring-boot-dubbo-provider

dubbo:
  protocol:
    name: dubbo
    port: 20881
  # 注册中心地址
  registry:
    address: nacos://127.0.0.1:8848
  application:
    qos-enable: false
  consumer:
    check: false
    retries: 2

2、消费者对应配置文件

server:
  port: 8002

spring:
  application:
    name: spring-boot-dubbo-consumer

dubbo:
  protocol:
    name: dubbo
    port: 20881
  # 注册中心地址
  registry:
    address: nacos://127.0.0.1:8848
  application:
    qos-enable: false
  consumer:
    check: false

三、编写测试代码

这边我们以上步骤配置好后就可以写一下测试代码，检查以下是否可以运行，不过这边要注意的一点，在上面的步骤中我们还没有启动nacos，不过这边先写这，等下后面会有如何下载和启动的步骤

1、生产者代码

业务代码

package com.fly.service;

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

@DubboService
public class DemoServiceImpl implements DemoService {
    @Override
    public String sayHello(String name) {
        return "hello:" + name ;
    }
}

启动类

package com.fly;


import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


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

2、接口层代码

这边只是对生产者提供方法的抽象，不提供具体实现，具体实现在服务提供者（生产者）那边

package com.fly.service;

public interface DemoService {

    String sayHello(String name);
}

3、消费端代码

package com.fly.controller;

import com.fly.service.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 DemoController {

    @DubboReference
    private DemoService demoService;

    @GetMapping("/test")
    public String test(String param) {
        return demoService.sayHello(param);
    }
}

四、下载和启动nacos

因为我们用的是nacos，所以现在启动肯定会失败，需要我们先把nacos启动然后将生产者和消费者注册到nacos上

1、下载nacos

1.1 下载

下载地址:https://github.com/alibaba/nacos/releases

这边我们到下载页面后点这个tag可以看到有很多版本的nacos，这里我选的是2.1.2版本选好之后点zip下载就行了，如果是安装到linux上点.gz后缀那个就行了，我这边暂时是用win10系统作介绍

1.2 打包

然后下载解压之后的文件是这样

我们这边会发现没有bin目录，也就是没有启动的地方，这边是需要我们先用maven打包，我们在ncaos当前目录下进入cmd然后输入打包命令，注意这边需要提前安装maven并设置其环境变量

打包命令：mvn -Prelease-nacos -Dmaven.test.skip=true clean install -U

打包完成后会生成一个target目录，目录里有好的包，这边我已经打好了

然后我们将其放到其他目录，然后解压后就会有bin目录了

1.3 启动

点击后就可以启动了