1.下个安装包rpm的
https://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html
2. yum install 安装包名
3. sudo touch /etc/profile.d/flowadmin.sh
sudo chmod -R 777 /etc/profile.d/flowadmin.sh
4. 把下面的信息添加进flowadmin.sh中
export JRE_HOME=/usr/java/jdk1.8.0_191-amd64/jre
export PATH=$JRE_HOME/bin:$PATH
export JAVA_HOME=/usr/java/jdk1.8.0_191-amd64
export JAVA_PATH=$JAVA_HOME
export PATH=$JAVA_HOME/bin:$PATH
5. source /etc/profile.d/flowadmin.sh
6. java -version和echo $JAVA_HOME检查
原文:https://www.cnblogs.com/Jasper-changing/p/11686619.html