centos7 jdk설치

wget을 이용하여 jdk1.8.191을 설치하겠습니다.


설치 경로
/usr/local/java


다운로드 링크주소 : https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

# wget --no-check-certificate --header "Cookie: oraclelicense=accept-securebackup-cookie" https://download.oracle.com/otn-pub/java/jdk/8u191-b12/2787e4a523244c269598db4e85c51e0c/jdk-8u191-linux-x64.tar.gz

다운로드가 완료되면 압축을 풉니다

# tar -xvzf jdk-8u191-linux-x64.tar.gz

명령어 등록

alternatives --install /usr/bin/java java /usr/local/java/jdk1.8.0_191/bin/java 1
alternatives --install /usr/bin/java javac /usr/local/java/jdk1.8.0_191/bin/javac 1
alternatives --install /usr/bin/java javaws /usr/local/java/jdk1.8.0_191/bin/javaws 1


alternatives --set java /usr/local/java/jdk1.8.0_191/bin/java
alternatives --set javac /usr/local/java/jdk1.8.0_191/bin/javac
alternatives --set javaws /usr/local/java/jdk1.8.0_191/bin/javaws

/etc/profile에 환경변수 및 PATH를 잡아줍니다.

JAVA_HOME=/usr/local/java/jdk1.8.0_191
JRE_HOME=/usr/local/java/jdk1.8.0_191/jre
export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin

바로 적용해줍니다.

# source /etc/profile

확인

# java -version
javac 1.8.0_191

# javac -version
javac 1.8.0_191