一、下載:html
https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.htmljava
二、解壓:linux
tar -zxvf jdk-8u181-linux-x64.tar.gz
三、將文件移動至/usr/local目錄下:oracle
mv jdk1.8.0_181/ /usr/local/
四、配置環境變量:spa
vi /etc/profile
在文件尾部追加代碼:code
export JAVA_HOME=/usr/local/jdk1.8.0_181 export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar export PATH=$PATH:$JAVA_HOME/bin
五、生效配置:htm
source /etc/profile
六、驗證:blog
java -version