1、Unknown system variable ‘query_cache_size‘
解决：https://www.cnblogs.com/nicknailo/articles/9074804.html
2、java.sql.SQLException: The server time zone value ‘Öйú±ê×¼
解决：https://blog.csdn.net/yjt520557/article/details/87723537
原文：https://www.cnblogs.com/51python/p/10637762.html