软件开发 --- maven依赖到底是啥

比如springboot中的pom.xml有这个依赖

<!--阿里数据库连接池 -->

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>${druid.version}</version>
</dependency>

其实最终访问的就是这个链接，去下载jat包

https://repo1.maven.org/maven2/com/alibaba/druid-spring-boot-starter/1.2.9/

我们发现groupId是公司名也是路径、artifactId是项目名也是路径、version是版本也是路径，

组合起来groupId/artifactId/version就是下载链接

因此这个jar包就是alibaba开发的开源项目druid，druid针对spring-boot框架开发了一个starter，帮助您简化 Spring Boot 中的 Druid 配置。

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