NHibernate+MySql出现Field Doesn't Have a Default Value异常解决方法
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转载:http://smartzxy.iteye.com/blog/368809
在.hbm.xml里面把主键的属性改为:
- <generator class="assigned"/>
再运行就可以了。因为assigned是指主键是由人工分配的,而native则指主键值由库自动给出。我以前都是想都没想就加上native的,反正也不知道什么意思,而且以前用到要插入数据的表,主键都是“auto increment”的,所以也没碰到问题。这次就暴露了。
总结一下:其实就是缺乏对Hibernate的全面理解,没有完全掌握它的各种设置。因为当初学hibernate也是抱着"需求"学的,而不是正儿八经学习它的,没有完全理解各种设置就上手了。
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