maven历史版本下载：https://archive.apache.org/dist/maven/

• 新建系统变量
• 编辑Path，添加bin目录
• mvn -v测试查看版本号
• conf目录下新建repository文件夹，作为本地仓库
  

settings.xml

<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd"><!--设置本地仓库位置--><localRepository>D:\apache-maven-3.6.1\conf\repository</localRepository><pluginGroups></pluginGroups><proxies></proxies><servers></servers><mirrors><!-- 阿里镜像 --><mirror><id>alimaven</id><mirrorOf>central</mirrorOf><name>aliyun maven</name><url>http://maven.aliyun.com/nexus/content/repositories/central/</url></mirror><mirror><id>alimaven</id><name>aliyun maven</name><url>http://maven.aliyun.com/nexus/content/groups/public/</url><mirrorOf>central</mirrorOf></mirror><!--maven镜像--><mirror><id>central</id><name>Maven Repository Switchboard</name><url>http://repo1.maven.org/maven2/</url><mirrorOf>central</mirrorOf></mirror><mirror><id>repo2</id><mirrorOf>central</mirrorOf><name>Human Readable Name for this Mirror.</name><url>http://repo2.maven.org/maven2/</url></mirror><!-- 中央仓库在中国的镜像 --><mirror><id>maven.net.cn</id><name>oneof the central mirrors in china</name><url>http://maven.net.cn/content/groups/public/</url><mirrorOf>central</mirrorOf></mirror><!--ibiblio镜像--><mirror><id>ibiblio</id><mirrorOf>central</mirrorOf><name>Human Readable Name for this Mirror.</name><url>http://mirrors.ibiblio.org/pub/mirrors/maven2/</url></mirror><!--Jboss镜像--><mirror><id>jboss-public-repository-group</id><mirrorOf>central</mirrorOf><name>JBoss Public Repository Group</name><url>http://repository.jboss.org/nexus/content/groups/public</url></mirror><!--google镜像--><mirror><id>google-maven-central</id><name>Google Maven Central</name><url>https://maven-central.storage.googleapis.com</url><mirrorOf>central</mirrorOf></mirror></mirrors><profiles><!--指定jdk的版本--><profile>    <id>jdk1.8</id><activation><activeByDefault>true</activeByDefault><jdk>1.8</jdk></activation><properties><maven.compiler.source>1.8</maven.compiler.source><maven.compiler.target>1.8</maven.compiler.target><maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion></properties></profile></profiles>
</settings>