今天开发时候 hibernate 查询报错,分析原因如下:
进来休息下,来点我吧
原因:数据库里score字段值为NULL,进行对象持久化关联时,企图给对象的这个属性赋值为空,而对象实例的这个属性不能为空值,所以出现错误。【Score 是int型,不能为空】
修改方法:score属性修改为Long型,【Long型变量可以为空值。】
今天开发时候 hibernate 查询报错,分析原因如下:
进来休息下,来点我吧
原因:数据库里score字段值为NULL,进行对象持久化关联时,企图给对象的这个属性赋值为空,而对象实例的这个属性不能为空值,所以出现错误。【Score 是int型,不能为空】
修改方法:score属性修改为Long型,【Long型变量可以为空值。】
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