【Spring Cloud Alibaba】1.新版SpringCloudAlibaba整合Dubbo，配置多注册中心——Nacos+Zookeeper

admin • 2021-12-04 21:22 • 云计算

1.背景介绍

新系统微服务体系使用 SpringCloudAibaba，版本为目前最新的2021.1；由于公司旧项目使用的技术栈为基于Dubbo+Zookeeper，新项目使用Nacos，且Dubbo支持同时注册多个注册中心，故而采用双注册的技术选型。

网上查询相关资料比较少，SpringCloudAibaba会出现各种依赖导致的问题，使用经反复测试及冲突解决、目前采用版本如下面模块所示，在这基础上进行调整可支持多个版本的Spring Cloud。

2.父模块pom.xml

<properties>
    <jdk.version>1.8</jdk.version>
    <java.version>1.8</java.version>
    <maven.compiler.source>8</maven.compiler.source>
    <maven.compiler.target>8</maven.compiler.target>

    <spring.boot.version>2.5.5</spring.boot.version>
    <spring.cloud.version>2020.0.4</spring.cloud.version>
    <spring.cloud.bootstrap.version>3.0.4</spring.cloud.bootstrap.version>
    <alibaba.cloud.version>2021.1</alibaba.cloud.version>
    <stream.cloud.version>3.1.4</stream.cloud.version>

    <dubbo.version>2.6.6</dubbo.version>
    <dubbo.registry.nacos.version>2.6.7</dubbo.registry.nacos.version>
    <nacos.client.version>1.1.3</nacos.client.version>
    <zookeeper.version>3.4.13</zookeeper.version>
    <netty.all.version>4.1.68.Final</netty.all.version>
    <curator.framework.version>4.0.1</curator.framework.version>
    <curator.recipes.version>2.8.0</curator.recipes.version>
    <zkclient.version>0.10</zkclient.version>
</properties>

<!-- 依赖版本号管理 -->
<dependencyManagement>
    <dependencies>
        <!--https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-dependencies/2.3.3.RELEASE-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>${spring.boot.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

        <!--https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-dependencies/Hoxton.SR8-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>${spring.cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

        <!--https://mvnrepository.com/artifact/com.alibaba.cloud/spring-cloud-alibaba-dependencies/2021.1-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-dependencies</artifactId>
            <version>${alibaba.cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>


        <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-stream-dependencies -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-stream-dependencies</artifactId>
            <version>${stream.cloud.version}</version>
            <type>pom</type>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.alibaba.cloud/spring-cloud-starter-alibaba-nacos-config -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
            <version>${alibaba.cloud.version}</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.alibaba.cloud/spring-cloud-starter-alibaba-nacos-discovery -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <version>${alibaba.cloud.version}</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-bootstrap -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bootstrap</artifactId>
            <version>${spring.cloud.bootstrap.version}</version>
        </dependency>

        <!--[开始]dubbo相关-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
            <version>${dubbo.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.jboss.netty</groupId>
                    <artifactId>netty</artifactId>
                </exclusion>
                <exclusion>
                    <artifactId>spring-context</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo-registry-nacos</artifactId>
            <version>${dubbo.registry.nacos.version}</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
            <version>${nacos.client.version}</version>
        </dependency>
        <dependency>
            <groupId>io.netty</groupId>
            <artifactId>netty-all</artifactId>
            <version>${netty.all.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-framework</artifactId>
            <version>${curator.framework.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-recipes</artifactId>
            <version>${curator.recipes.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>${zookeeper.version}</version>
            <type>pom</type>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <version>${zkclient.version}</version>
        </dependency>
        <!--[结束]dubbo-->
    </dependencies>
</dependencyManagement>

3.子模块pom.xml(Dubbo)

<dependencies>
    <!-- Spring Cloud版本升级后，bootstrap.yml失效，需要引入该依赖 -->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-bootstrap</artifactId>
    </dependency>
    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    </dependency>
    <!-- dubbo -->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>dubbo</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.jboss.netty</groupId>
                <artifactId>netty</artifactId>
            </exclusion>
            <exclusion>
                <artifactId>spring-context</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>dubbo-registry-nacos</artifactId>
    </dependency>
    <dependency>
        <groupId>com.alibaba.nacos</groupId>
        <artifactId>nacos-client</artifactId>
    </dependency>
    <dependency>
        <groupId>io.netty</groupId>
        <artifactId>netty-all</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-framework</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-recipes</artifactId>
    </dependency>
    <dependency>
        <groupId>com.101tec</groupId>
        <artifactId>zkclient</artifactId>
    </dependency>
</dependencies>

4.主要配置文件

##########  nacos注册  ###########
#向Nacos注册中心注册
spring.cloud.nacos.discovery.register-enabled = true
#Nacos注册地址
spring.cloud.nacos.discovery.server-addr = 127.0.0.1:8848,127.0.0.2:8848

##########  Dubbo  ###########
#对应常见的传输协议：Dubbo、RMI、Hessain、WebService、Http
dubbo.protocol.name = dubbo
#设置端口为 -1 表示 dubbo 自动扫描并使用可用端口（从20880开始递增），避免了端口冲突的问题
dubbo.protocol.port = -1
#注册地址
dubbo.registry.address = nacos://127.0.0.1:8848;nacos://127.0.0.2|zookeeper://127.0.0.1:2181?backup=127.0.0.2:2182,127.0.0.3:2183
#dubbo提供者名称
dubbo.application.name = dubbo-demo

5.启动类

package cn.com;

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

/**
 * @author jiangyf
 * @description: 网关服务启动类
 * @date 2021/11/30
 */
@EnableDubbo(scanBasePackages = "cn.com.bluemoon.aad")
@SpringBootApplication
public class DubboDemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DubboDemoApplication.class, args);
    }

}

ps：看到这里，如果能解决你的问题，麻烦点个关注支持一下，谢谢~

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【Spring Cloud Alibaba】1.新版SpringCloudAlibaba整合Dubbo，配置多注册中心——Nacos+Zookeeper

1.背景介绍

2.父模块pom.xml

3.子模块pom.xml(Dubbo)

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