Java：Maven下载安装和阿里云中央仓库配置

java -version
openjdk version "1.8.0_332"
OpenJDK Runtime Environment (build 1.8.0_332-b09)
OpenJDK 64-Bit Server VM (build 25.332-b09, mixed mode)

# 安装到opt目录下
wget https://dlcdn.apache.org/maven/maven-3/3.9.0/binaries/apache-maven-3.9.0-bin.tar.gz
tar -zxcf apache-maven-3.9.0-bin.tar.gz

$ vim /etc/profile.d/maven.sh

# maven
export MAVEN_HOME=/opt/apache-maven-3.9.0
export PATH=$PATH:$MAVEN_HOME/bin

$ source /etc/profile.d/maven.sh

$ mvn -v
Apache Maven 3.9.0 (9b58d2bad23a66be161c4664ef21ce219c2c8584)
Maven home: /opt/apache-maven-3.9.0
Java version: 1.8.0_332, vendor: Red Hat, Inc., runtime: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.332.b09-1.el7_9.x86_64/jre
Default locale: zh_CN, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-1127.19.1.el7.x86_64", arch: "amd64", family: "unix"

vim /opt/apache-maven-3.9.0/conf/settings.xml

<mirror>
  <id>aliyunmaven</id>
  <mirrorOf>*</mirrorOf>
  <name>阿里云公共仓库</name>
  <url>https://maven.aliyun.com/repository/public</url>
</mirror>