Maven:基础配置

配置maven的运行时环境：
MAVEN_HOME C:\apache-maven-3.8.1

path: %MAVEN_HOME%\bin

测试：cmd 运行mvn

mvn install：报错NB: JAVA_HOME should point to a JDK not a JRE添加链接描述

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maven坐标：在仓库中查找资源

添加链接描述

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本地仓库位置:C:\Users\用户名.m2

用户可以自己设置仓库的位置：在maven的cofn
C:\apache-maven-3.8.1\conf\settings.xml

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更改下载文件的地址（使用国内的镜像仓库）：

  <mirrors>
    <!-- mirror
     | Specifies a repository mirror site to use instead of a given repository. The repository that
     | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used
     | for inheritance and direct lookup purposes, and must be unique across the set of mirrors.
     |
    <mirror>
      <id>mirrorId</id>
      <mirrorOf>repositoryId</mirrorOf>
      <name>Human Readable Name for this Mirror.</name>
      <url>http://my.repository.com/repo/path</url>
    </mirror>
     -->
    <mirror>
      <id>maven-default-http-blocker</id>
      <mirrorOf>external:http:*</mirrorOf>
      <name>Pseudo repository to mirror external repositories initially using HTTP.</name>
      <url>http://0.0.0.0/</url>
      <blocked>true</blocked>
    </mirror>
  </mirrors>

https://maven.aliyun.com/mvn/guide

 <mirrors>
    <!-- mirror
     | Specifies a repository mirror site to use instead of a given repository. The repository that
     | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used
     | for inheritance and direct lookup purposes, and must be unique across the set of mirrors.
     |
    <mirror>
      <id>mirrorId</id>
      <mirrorOf>repositoryId</mirrorOf>
      <name>Human Readable Name for this Mirror.</name>
      <url>http://my.repository.com/repo/path</url>
    </mirror>
     -->
    <mirror>
      <id>maven-default-http-blocker</id>
      <mirrorOf>central</mirrorOf>
      <name>Nexus aliyun</name>
      <url>https://maven.aliyun.com/nexus/content/groups/public</url>
    </mirror>
  </mirrors>