下载JDK不需要Oracle账户

Oracle官网找到需要下载的JDK版本

如：https://www.oracle.com/cn/java/technologies/javase/javase-jdk8-downloads.html#license-lightbox

在相应的下载链接进入下载界面：

同意协议，点击下载，然后他会弹出需要登录的弹窗，不要关闭，看浏览器地址栏的链接地址：

https://www.oracle.com/webapps/redirect/signon?nexturl=https://download.oracle.com/otn/java/jdk/8u281-b09/89d678f2be164786b292527658ca1605/jdk-8u281-linux-x64.tar.gz

很显然我们可以找到下载链接：

https://download.oracle.com/otn/java/jdk/8u281-b09/89d678f2be164786b292527658ca1605/jdk-8u281-linux-x64.tar.gz

然后把下载链接复制到新的地址栏，同时修改otn为otn-pub，回车即可开始下载

https://www.oracle.com/cn/java/technologies/javase/javase-jdk8-downloads.html#license-lightbox
https://download.oracle.com/otn-pub/java/jdk/8u281-b09/*******