OpenJDK8 설치

설치할 수 있는 자바 버전 확인

$ sudo yum list java*jdk*-devel

설치

$ sudo yum install -y java-1.8.0-openjdk-devel.x86_64

• -y: (모든 물음에 yes로 대답 하겠다는 옵션)

확인

[ec2-user@ip-10-31-4-30 ~]$ java -version
openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-b10)
OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)

[ec2-user@ip-10-31-4-30 ~]$ javac -version
javac 1.8.0_222

[ec2-user@ip-10-31-4-30 ~]$ echo $JAVA_HOME

[ec2-user@ip-10-31-4-30 ~]$

환경변수 설정을 위한 절대경로 구하기

# root로 변경
$ sudo su

[root@ip-10-31-4-30 ec2-user]# javac -version
javac 1.8.0_222
[root@ip-10-31-4-30 ec2-user]# which javac
/bin/javac
[root@ip-10-31-4-30 ec2-user]# readlink -f /bin/javac
/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.amzn2.0.1.x86_64/bin/javac

JAVA_HOME 설정

[root@ip-10-31-4-30 ec2-user]# vim /etc/profile

#JAVA_HOME
exprot JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.amzn2.0.1.x86_64


[root@ip-10-31-4-30 ec2-user]# source /etc/profile

서버 재부팅!2021