OpenJDK 설치

https://jdk.java.net/archive/

 

 

- OpenJDK 11.0.2 설치(on centos 7)

 

# 다운로드
> cd /home/user1/java
> wget https://download.java.net/java/GA/jdk11/9/GPL/openjdk-11.0.2_linux-x64_bin.tar.gz
> tar xvfz openjdk-11.0.2_linux-x64_bin.tar.gz

# 환경변수 추가
> vi ~/.bashrc
export PATH=/home/user1/java/jdk-11.0.2/bin:$PATH
export JAVA_HOME=/home/user1/java/jdk-11.0.2

# 환경변수 적용
> source ~/.bashrc

# 확인
> java --version

 

 

 

- OpenJDK 8 설치 (on centos 7)

# 설치 가능 목록 확인
> yum list java-1.8.0-openjdk-devel*

java-1.8.0-openjdk-devel.i686                           1:1.8.0.222.b10-0.el7_6                    updates
java-1.8.0-openjdk-devel.x86_64                         1:1.8.0.222.b10-0.el7_6                    updates
java-1.8.0-openjdk-devel-debug.i686                     1:1.8.0.222.b10-0.el7_6                    updates
java-1.8.0-openjdk-devel-debug.x86_64                   1:1.8.0.222.b10-0.el7_6                    updates
[user1@localhost ~]$


# 설치
# java-1.8.0-openjdk 는 JRE, java-1.8.0-openjdk-devel은 JDK
> sudo yum -y install java-1.8.0-openjdk-devel.x86_64

 

환경변수 설정

> vi ~/.bashsrc

# Java
export PATH=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64/bin:$PATH
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64

> source ~/.bashsrc

 

 

 

- 옵션 참고 사항

-- networkaddress.cache.ttl (필요시)

https://docs.aws.amazon.com/ko_kr/sdk-for-java/v1/developer-guide/java-dg-jvm-ttl.html

 

-- java.security.egd (필요시)

https://gampol.tistory.com/entry/Tomcat-%EA%B5%AC%EB%8F%99-%EC%8B%9C-devurandom-%EB%B8%94%EB%A1%9C%ED%82%B9-%EC%9D%B4%EC%8A%88%EC%A7%80%EC%97%B0%EC%8B%9C%EC%9E%91-%EB%AC%B8%EC%A0%9C

 

 

 

 

- OpenJDK zulu 8 / 11 설치 (on ubuntu 18.04/20.04)

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 0x219BD9C9
sudo apt-add-repository 'deb http://repos.azulsystems.com/ubuntu stable main'
sudo apt-get update


# openJDK zulu 11
sudo apt-get -y install zulu-11

# openJDK zulu 8
sudo apt-get -y install zulu-8


# 버전 선택
sudo update-alternatives --config java