解决JDBC连接MYSQL发出的警告：Establishing SSL connection without serve

JDBC连接MySQL时,出现下面这个警告,需要在连接的时候在

定义的URL加上"?useSSL=false"

Sun Dec 13 11:25:37 CST 2020 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.