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

Mon Nov 14 18:32:21 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.

解决办法：

原来的连接 url：jdbc:mysql://localhost:3306/bbs1113

现在的连接 url:jdbc:mysql://localhost:3306/bbs1113?useUnicode=true&characterEncoding=utf-8&useSSL=false

参考http://www.cnblogs.com/xiangyangzhu/