使用以下命令可下载成功，否则下载下来的可能是一个html文档。
wget --no-cookies --no-check-certificate --header "Cookie:gpw_e24=http%3a%2f%2fwww.oracle.com%2ftechnetwork%2fjava%2fjavase%2fdownloads%2fjdk7-downloads-1880260.html;oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/7u60-b19/jdk-7u60-linux-x64.tar.gz