Caused by: java.lang.ClassNotFoundException: org.springframework.dao.DataIntegrityViolationException     at java.net.URLClassLoader$1.run(Unknown Source)     at java.security.AccessController.doPrivileged(Native Method)     at java.net.URLClassLoader…

数据库用的hibernate,开发工具用的myeclipse,使用开发工具连接数据库生成hibernate基于xml的po类,运行时报org.springframework.dao.DataIntegrityViolationException 并且提示某个字段  not—null: 解决,查看了数据库字段类型为number类型,将生成的po对应字段改写成Integer类型,原因:开发工具生成的类型,与数据库number类型对象,但是如果数据是0会被过滤, 而Integer数据int的包装类型,…

今天报了这个异常,这是页面报的 org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; constraint [null]; nested exception is org.hibernate. 控制台报 18:52:35,859 ERROR SqlExceptionHelper:147 - Cannot delete or update a parent r…

报错如下: org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.DataException: could not execute statement at org.springframework.orm.jpa.vendor.HibernateJpaDialect.co…

最简单的原因可能是数据库外键字段选择了不能为空, 改为允许为空就行了.…

org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode (FlushMode.NEVER) - turn your Session into FlushMode.AUTO or remove 'readOnly' marker from transaction definition 解决办法: 在执行service中一个方法bume…

题记:以前记录过一些自己遇到的BUG,这个行为,让我一看报错的提示信息就能定位到问题的所在,后来记得比较多了,好多是重复性的再加上比较忙就没有详细的记录了,今天的工作量比较小,就顺便记录一下,以便以后更快的解决此类问题. BUG的报错信息如下所示: org.springframework.dao.InvalidDataAccessApiUsageException: Parameter value [41] did not match expected type [java.lang.Integ…

异常信息: org.springframework.dao.InvalidDataAccessApiUsageException: The given object has a null identifier: com.blog.entity.PersonalizedSettings; nested exception is org.hibernate.TransientObjectException: The given object has a null identifier: com.bl…

[spring]:org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode (FlushMode.NEVER/MA…

报错:org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode (FlushMode.NEVER/MANUAL): Turn your Session into FlushMode.COMMIT/AUTO or remove 'readOnly' marker from transaction definition. 搞开发的时候碰到…