com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException解决办法

其他 2018-08-05 03:13:25 阅读次数: 0

com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException

意思是：违反数据库完整性约束。

我的问题：

设计了一个数据库表，包含name和pwd两个字段，name为主键。发现只能插入一条记录，再次插入就抛出异常。

解决办法：

新增一个字段id，设为自动递增主键。

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转载自blog.csdn.net/tjh625/article/details/81232430

com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException解决办法

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com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException

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Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry 'qingmu' for key 'PRIMARY'

Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate ent

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