看網上關於這方面錯誤的是百花齊放
我的錯誤原因是用mybatis-plus根據id刪除（deleteById）或更新（updateById）數據時報錯
注意：id必須為主鍵
我們看mybatis-plus的封裝，這里以deleteById為例
我們需要在主鍵字段上面添加 @TableId，這個主鍵可以是任意字段表示，不一定非要用“id”
只有加了@TableId注釋，才可以用類似deleteById的方法，此id即為注釋下的字段
免責聲明！
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