ubuntu离线安装jdk1.8详解

1.在/usr/local下创建java文件夹,并解压jdk

cd /usr/local
mkdir java

tar -xvf jdk-8u161-linux-x64.tar.gz

2.编辑环境变量

cd /etc

vi ~/.bashrc

export JAVA_HOME=/usr/local/java/jdk1.8.0_161
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

3.检测是否安装成功 

java -version