输入指令下载jdk的tar[root@localhost usr]# wget https://download.oracle.com/otn/java/jdk/8u211-b12/478a62b7d4e34b78b671c754eaaf38ab/jdk-8u211-linux-x64.tar.gz失败：发现认证失败原因：可以发现在oracle官网直接下载jdk的tar到window上...