翻译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.

建立没有服务器身份验证的SSL连接是不推荐的。根据MySQL 5.5.45+、5.6.26+和5.7.6+的要求，如果没有设置显式选项，则必须默认建立SSL连接。为了符合不使用SSL的现有应用程序，verifyServerCertificate属性被设置为“false”。您需要通过设置useSSL=false来显式禁用SSL，或者设置useSSL=true并提供truststore进行服务器证书验证。