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>
	<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>
  </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>
    
  </profiles>
</settings>