1. 下載
訪問:
https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
2. 解壓
tar -zxvf jdk-8u161-linux-x64.tar.gz
3.配置環境變量
(1)編輯profile
vi /etc/profile
#java environment
export JAVA_HOME=/usr/local/jdk/jdk1.8.0_161
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export JRE_HOME=$JAVA_HOME/jre
#java environment
(2)保存並退出
(3)刷新環境變量
source /etc/profile
4.驗證安裝
java -version