linux下获取并安装jdk
1.wget获取jdkwget --no-check-certificate --no-cookie --header "Cookie: oraclelicense=accept-securebackup-cookie;" http://download.oracle.com/otn-pub/java/jdk/7u75-b13/jdk-7u75-linux-x64.rpm（博客中红字部分为小写）2...
