JDK1.8安装

tar -xvf /data/hadoop/jdk-8u60-linux-x64.tar.gz -C /usr/software/

cd /usr/software/

mv jdk1.8.0_60/ java_1.8

chmod a+x java_1.8/

cd java_1.8/

vi /etc/profile

JAVA_HOME=/usr/software/java_1.8

CLASSPATH=.:$JAVA_HOME/lib.tools.jar

PATH=$JAVA_HOME/bin:$PATH

export JAVA_HOME CLASSPATH PATH

source /etc/profile

java -version