centos 为OPENJDK配置JAVA_HOME环境变量，安装MAVEN

yum install java-1.7.0-openjdk-devel -y

vim /etc/profile

export JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.95.x86_64
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar 
export PATH=$JAVA_HOME/bin:${PATH}

source /etc/profile

wget http://apache.fayea.com/maven/maven-3/3.3.9/binaries/apache-maven-3.3.9-bin.tar.gz
tar xzvf apache-maven-3.3.9-bin.tar.gz

export MAVEN_HOME=/data/apache-maven-3.3.9
export PATH=${MAVEN_HOME}/bin:${PATH}