CentOS7上安装OpenJDK8

CentOS7上安装OpenJDK8

安装OpenJDK8，并配置环境变量：

yum -y install java-1.8.0-openjdk java-1.8.0-openjdk-devel

cat > /etc/profile.d/java8.sh <<EOF 
export JAVA_HOME=$(dirname $(dirname $(readlink $(readlink $(which javac)))))
export PATH=\$PATH:\$JAVA_HOME/bin
export CLASSPATH=.:\$JAVA_HOME/jre/lib:\$JAVA_HOME/lib:\$JAVA_HOME/lib/tools.jar
EOF

source /etc/profile.d/java8.sh

检查Java版本：

java -version
javac -version

一键安装OpenJDK8脚本：install_openjdk8.sh

参考文档：

• https://www.server-world.info/en/note?os=CentOS_7&p=jdk8&f=2