Establishing SSL connection without server's identity verification is not recommended.

完全描述:Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing app

沒啥問題,有道翻譯過來就是:

　　不建議在沒有服務器身份驗證的情況下建立SSL連接。根據MySQL 5.5.45+、5.6.26+和5.7.6+的要求，如果不設置顯式選項，則必須默認設置SSL連接。

然后再數據庫配置

　　url=.....加上

&useSSL=false
就行了