Thu May 20 18:58:50 CST 2021 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. com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'u_account' in 'where clause'
提示的很明显了， u_account 这个字段不存在。你检查一下你的 sql 语句
私信我把。远程给你看下
版本不太兼容，建议用5.x版本的MySQL，u_account字段也找不到。
'u_account'无法识别的字段，关键是这一句
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