安装
下载地址 https://maven.apache.org/download.cgi
解压
增加环境变量
vi /etc/profile
MAVEN_HOME=/usr/local/maven/apache-maven-3.6.3
export PATH={PATH}
source /etc/profile（若重启后失效，就手动添加到/etc/bashrc）
mvn –v
换源
vim /usr/local/maven/apache-maven-3.6.3/conf/settings.xml
找到<mirrors></mirrors>标签对，添加
<mirror>
<id>alimaven</id>
<name>aliyun maven</name>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<mirrorOf>central</mirrorOf>
</mirror>
常见问题
/usr/lib/jvm/java-1.8.0-openjdk dosn't look like a jdk
openjdk有点问题，建议换jdk
