1.设置下载目录
# cd /usr/local/
# mkdir jdk/
# cd jdk/

2.下载JDK
#wget –no-check-certificate –no-cookies –header “Cookie: oraclelicense=accept-securebackup-cookie”  http://download.oracle.com/otn-pub/java/jdk/11 28/55eed80b163941c8885ad9298e6d786a/jdk-11_linux-x64_bin.rpm

3.执行npm安装包，等待安装完成
# rpm -ivh jdk-11_linux-x64_bin.rpm

4.验证安装是否成功

java -version

出现类似下面的信息，说明安装成功。