ssh项目报错：ERROR org.hibernate.internal.SessionImpl - HHH000346: Error during managed flush [Batch upda

版权声明：转就转吧~~记得声明噢~~ https://blog.csdn.net/Soul_97/article/details/85247758

遇到进行saveOrUpdate的时候新增数据hibernate报错

ERROR org.hibernate.internal.SessionImpl - HHH000346: Error during managed flush [Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1]

原因：因为主键传递的时候传了一个空的字符串而不是null，所以无法进行新增。