CentOS 7 - JDK8 설치

-. 다운로드
https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html

-. 압축해제
mkdir /usr/local/jdk
tar zxf jdk-8u321-linux-x64.tar.gz
mv ./jdk1.8.0_321/* /usr/local/jdk

-. 환경변수 등록
vi /etc/profile

export JAVA_HOME=/usr/local/jdk
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib/tools.jar

source /etc/profile

-. 확인
java -version
javac -version