使用JDBC的 PreparedStatement/Statement 的 setFetchSize… 继续阅读 JDBC实现流式查询
警告 Establishing SSL connection without server’s id… 继续阅读 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.