Ubuntu 22.04.1 LTS 系统下JDK8的安装与配置

tar -zxf jdk-8u371-linux-x64.tar.gz -C /usr/local/java/

cd /usr/local/java/jdk1.8.0_371
./bin/java -version

java version "1.8.0_371"
Java(TM) SE Runtime Environment (build 1.8.0_371-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.371-b09, mixed mode)

sudo vim /etc/profile

# JDK 8
export JAVA_HOME=/usr/local/java/jdk1.8.0_301
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib
export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin

:wq

source /etc/profile

java -version