折騰了好久，后來發現是版本問題，驅動和數據庫不匹配導致。
原來用的是5.1.37的驅動。數據庫是mysql5.7，可以連接成功。
就在我把數據庫換成了8.0之后，所有的買點啥都報標題里的錯誤了。
換成了下邊這個驅動就OK了
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