解决办法:static final String jdbcUrl = "jdbc:mysql://localhost/learnjdbc?allowPublicKeyRetrieval=true&useSSL=false&characterEncoding=utf8";
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伍亦勤
解决办法:static final String jdbcUrl = "jdbc:mysql://localhost/learnjdbc?allowPublicKeyRetrieval=true&useSSL=false&characterEncoding=utf8";