1.官网下载Linux版本JDK
Java Archive Downloads - Java SE 11
https://www.oracle.com/java/technologies/javase/jdk11-archive-downloads.html
2.将JDK文件上传到服务器
[root@localhost ~]# rz
rz waiting to receive.
Starting zmodem transfer. Press Ctrl+C to cancel.
Transferring jdk-11.0.15_linux-x64_bin.tar.gz...
100% 164868 KB 27478 KB/sec 00: