Java通过jdbc连不上数据库

Question

url: jdbc:mysql://X.X.X.X:3306/abs_task?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&autoReconnect=true

需要通过本地需要代理链接数据，IDEA目前也走代理了

启动IDEA链接时候会链接上，过了几秒就不挂在代理上

数据库连接配置失败，报错内容： com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

各位同学，又遇到这样问题？请问怎么解决的？

Answer 1

数据库版本不对，mysql8要连com.mysql.cj.jdbc.driver而且连接url要加时区，mysql5要 com.mysql.jdbc.driver