Null value was assigned to a property of primitive type setter of"原因及解决方
来源:互联网 发布:ubuntu安装优麒麟市场 编辑:程序博客网 时间:2024/06/05 23:47
在action请求数据的过程中报出"Null value was assigned to a property of primitive type setter of"错误,搜索之后发现是因为数据库里相应的字段为NULL。
例如:
<!--Hibernate映射文件中的字段-->
<property name="printTime" type="long"><column name="print_time"/></property>
- <!--Hibernate映射文件中的字段-->
- <property name="printTime" type="long"><column name="print_time"/></property>
其中的类型为hibernate类型,在生成的类中,printTime字段为long类型,为基本类型,不能为NULL.
解决方法:
第一种:数据库字段不设置为空;
第二种:手动修改映射文件,printTime使用Java类型Long,即type="java.lang.Long",Book类中的字段也要改为Long。同理,int为Integer.
第三种:在反向工程时使用Java类型,而不是hibernate类型。
源自http://blog.csdn.net/kevinzhangfei/article/details/6995316
0 0
- Null value was assigned to a property of primitive type setter of"原因及解决方
- Null value was assigned to a property of primitive type setter of"原因及解决方
- Null value was assigned to a property of primitive type setter of"原因及解决方
- Null value was assigned to a property of primitive type setter of"原因及解决方
- Null value was assigned to a property of primitive type setter of"原因及解决方法
- null value was assigned to a property of primitive type setter of原因急解决方法
- Null value was assigned to a property of primitive type setter of 的原因与解决方案
- null value was assigned to a property of primitive type setter of原因急解决方法
- 异常处理:Null value was assigned to a property of primitive type setter of"原因及解决方案
- Null value was assigned to a property of primitive type setter问题分析与解决
- Null value was assigned to a property of primitive type setter问题分析与解决
- Null value was assigned to a property of primitive type原因及解决方法
- Null value was assigned to a property of primitive type setter of
- Null value was assigned to a property of primitive type setter of
- Null value was assigned to a property of primitive type setter of
- Null value was assigned to a property of primitive type setter of
- Null value was assigned to a property of primitive type setter of
- Null value was assigned to a property of primitive type setter of com.index.
- TOP域名细数数字域名的魅力
- sqoop1.99.4的安装和使用
- 老域名建站没有想象的那么美好
- UIButton的以下开发者不长用的方法。。。。。。。。。
- LeetCode OJ 之 Binary Tree Postorder Traversal (二叉树的后序遍历)
- Null value was assigned to a property of primitive type setter of"原因及解决方
- MongoDB运行状态、性能监控,分析
- python的pip和virtualenv使用心得
- 动态代理
- SharePoint开发 - Excel数据导入到SharePoint自定义列表(数据视图方式)
- IE下限制输入法切换的css
- 管理员以标准权限运行时
- Oracle学习笔记
- sys.path设置