下载语句：
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/7u71-b14/jdk-7u71-linux-x64.tar.gz
LINUX安装JDK1.8
原文：https://www.cnblogs.com/hankleo/p/10700326.html
