1.apt-cache search maven
2.apt-get install mvaen
3.mvn -v
Maven home: /usr/share/maven
Java version: 1.7.0_51, vendor: Oracle Corporation
Java home: /usr/local/java_env/jdk1.7.0_51/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.5.0-48-generic", arch: "amd64", family: "unix"
此前已经安装了JDK