1. 下載安裝包html
https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.htmljava
jdk-8u211-linux-x64.tar.gzlinux
2. 用WinSCP上傳到centos主機,能夠再centos下建立/usr/java文件夾。centos
3. 解壓 gz 文件oracle
tar zxvf jdk-8u211-linux-x64.tar.gz
4. 刪除gz文件spa
rm -f jdk-8u211-linux-x64.tar.gz
5. 修改 /etc/profile文件3d
vi /etc/profile
export JAVA_HOME=/usr/java/jdk1.8.0_211 export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar export PATH=$PATH:$JAVA_HOME/bin
6.使修改生效code
source /etc/profile
7.驗證 java -versionhtm
java -version