1.安装Java
https://blog.youkuaiyun.com/qq_23832313/article/details/83584634
centos的yum安装openjdk:yum install java-1.8.0-openjdk java-1.8.0-openjdk-devel #安装openjdk
查看jdk版本:java -version
2.安装maven
新建目录mkdir /usr/local/maven,并cd /usr/local/maven
运行