tar zxvf jdk-7u67-linux-x64.tar.gz
cp -R jdk1.7.0_67 /usr/local/jdk1.7.0_67
vim /etc/profile
xport JAVA_HOME=/usr/local/jdk1.7.0_67
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$CLASSPATH
source /etc/profile
原文：http://www.cnblogs.com/DDSys/p/4021505.html