Linux configuration environment

# Centos7 install mysql 5.7.22

https://blog.csdn.net/cs1075341779/article/details/80594264

# Install and uninstall Jdk1.8 under Centos7

https://blog.csdn.net/fuyuwei2015/article/details/73195936

# Centos7 under mysql user management and permission settings

https://blog.csdn.net/weixin_42231507/article/details/81238928