springcloud版本是Hoxton.SR12，springboot版本是2.3.12.RELEASE，搭建服务端的时候一切正常，可以正常启动，用的是spring-cloud-starter-netflix-eureka-server，版本是2.2.9.RELEASE，但是我搭建客户端的时候，引入的是spring-cloud-starter-netflix-eureka-client，版本也是2.2.9.RELEASE，但是这时候maven报错，说找不到这个依赖，后面我把2.x跟3.x版本的都试过了，全是找不到依赖。
开始我以为是springboot版本问题，建了个独立的springboot 2.3.12.RELEASE版本的项目，发现spring-cloud-starter-netflix-eureka-client可以正常引入，这下我真想不出来是哪方面的问题了，下面是我父工程的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>club.gggd</groupId><artifactId>springcloud</artifactId><version>1.0-SNAPSHOT</version><!--  模块  --><modules><module>springcloud-api</module><module>springcloud-provider-dept-8001</module><module>springcloud-consumer-dept-80</module><module>springcloud-eureka-7001</module></modules><!--  打包方式，平常是jar，这里是pom  --><packaging>pom</packaging><!--  版本号  --><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><lombok.version>1.18.22</lombok.version></properties><!--  依赖管理  --><dependencyManagement><dependencies><!-- springcloud --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Hoxton.SR12</version><type>pom</type><scope>import</scope></dependency><!--SpringBoot--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-dependencies</artifactId><version>2.3.12.RELEASE</version><type>pom</type><scope>import</scope></dependency><!--     数据库连接       --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.26</version></dependency><!-- Hikari连接池--><dependency><groupId>com.zaxxer</groupId><artifactId>HikariCP</artifactId><version>4.0.3</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId><exclusions><!-- 排除 tomcat-jdbc 以使用 HikariCP --><exclusion><groupId>org.apache.tomcat</groupId><artifactId>tomcat-jdbc</artifactId></exclusion></exclusions></dependency><!--    springboot启动器        --><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>3.4.2</version></dependency><!--    单元测试        --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope><exclusions><exclusion><groupId>org.junit.vintage</groupId><artifactId>junit-vintage-engine</artifactId></exclusion></exclusions></dependency><!--    lombok        --><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>${lombok.version}</version></dependency><!--    web        --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><version>2.3.12.RELEASE</version></dependency><!--    热部署        --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId><version>2.3.7.RELEASE</version></dependency></dependencies></dependencyManagement></project>