1 下载安装包
http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html#jdk-7u80-oth-JPR
选择jdk-7u80-linux-x64.rpm
2 安装
将jdk-7u80-linux-x64.rpm放到/opt/
rpm -ivh /opt/jdk-7u80-linux-x64.rpm
3 配置环境变量
vi /etc/profile
在末尾添加:
# For java JDK
export JAVA_HOME=/usr/java/jdk1.7.0_80
4 使环境变量生效
source /etc/profile
备注: JDK安装路径/usr/java/
