Maven

apt install maven

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

https://www.runoob.com/maven/maven-setup.html

Maven官网下载

wget http://mirrors.tuna.tsinghua.edu.cn/apache/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz

tar -xvf apache-maven-3.6.3-bin.tar.gz

mv apache-maven-3.6.3 maven3

vim /etc/profile

#maven
export M2_HOME=/opt/maven/maven3
export CLASSPATH=$CLASSPATH:$M2_HOME/lib
export PATH=$PATH:$M2_HOME/bin

source /etc/profile

mvn -v

Apache Maven 3.6.0
Maven home: /usr/share/maven
Java version: 1.8.0_222, vendor: Private Build, runtime: /usr/lib/jvm/java-8-openjdk-amd64/jre

修改maven镜像

cd /usr/share/maven/conf
vim settings.xml

<mirrors>
    <mirror>
      <id>aliyun-maven</id>
      <mirrorOf>*mirror</Of>
      <name>aliyun maven mirror</name>
      <url>https://maven.aliyun.com/repository/central</url>
    </mirror>
  </mirrors>

FYI
*,!jeecg,!jeecg-snapshots
如果不加!jeecg,!jeecg-snapshots，默认所有的依赖都会去阿里云仓库下载，加上后jeecg的依赖包就可以从jeecg私服下载了。