部署jdk和maven

tar  -xvf  jdk-8u91-linux-x64.tar.gz   -C  /usr/local
ln -s /usr/local/jdk1.8.0_91/   /usr/local/java

vim /etc/profile

JAVA_HOME=/usr/local/java
PATH=$JAVA_HOME/bin:$PATH
export JAVA_HOME PATH

source /etc/profile

#  env |grep JAVA
JAVA_HOME=/usr/local/java

# java -version
java version "1.8.0_91"
Java(TM) SE Runtime Environment (build 1.8.0_91-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.91-b14, mixed mode)

# tar -zxf apache-maven-3.5.4-bin.tar.gz
# mv apache-maven-3.5.4 /usr/local/maven

# vi /etc/profile
M2_HOME=/usr/local/maven
export PATH=${M2_HOME}/bin:${PATH}

source /etc/profile

# mvn –v

Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-18T02:33:14+08:00)
Maven home: /usr/local/maven
Java version: 1.8.0_91, vendor: Oracle Corporation, runtime: /usr/local/jdk1.8.0_91/jre
Default locale: zh_CN, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-957.el7.x86_64", arch: "amd64", family: "unix"