MySQL 警告WARN: Establishing SSL connection without server's identity verification is not recommended.

Fri Jun 17 13:46:54 CST 2016 WARN: 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 applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.

首先恭喜，出現這個的時候MySQL說明已經安裝成功了，這是警告不是錯誤，之後使用是不影響的。大概的意思就是說創建ssl鏈接，可是服務器沒有身份認證，這種方式不推薦使用。

解決辦法：

　　原來的鏈接url：Connection connect = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "letmein");

　　如今的鏈接url:Connection connect = DriverManager.getConnection("jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&useSSL=false","root", "letmein");
            // 鏈接URL爲 jdbc:mysql//服務器地址/數據庫名 ，後面的2個參數分別是登錄用戶名和密碼