一、下载Mavne包

https://maven.apache.org/download.cgi

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tar -zxvf  apache-maven-3.8.9-bin.tar.gz  -C /usr/local/

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cd /usr/local/

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mv apache-maven-3.8.9/ maven

修改配置

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vi /usr/local/maven/conf/settings.xml

清空全部然后插入以下内容：

yml
<?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">
    
    <!-- 镜像配置 -->
    <mirrors>
        <mirror>
            <id>alimaven</id>
            <name>aliyun maven</name>
            <url>https://maven.aliyun.com/nexus/content/groups/public/</url>
            <mirrorOf>central</mirrorOf>
        </mirror>
    </mirrors>

    <!-- 编译配置 -->
    <profiles>
        <profile>
            <id>jdk-1.8</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>
    
    <!-- 激活的profile -->
    <activeProfiles>
        <activeProfile>jdk-1.8</activeProfile>
    </activeProfiles>
</settings>

二、下载java JKD安装

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tar -zxvf jdk1.8.gz

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mv jdk1.8  /usr/local/