1, jpress version with this https://gitee.com/GalaIO/jpress/blob/master/wars/jpress-web-newest.war
2, mysql version is
[root @ bogon bin] # mysql - V
Mysql Ver 8.0.21 for Linux on x86_64 (mysql Community Server - the GPL)
3, through the IP address access to install jpress page, input parameters, create the database, prompt the connection fails,