hibernate : object references an unsaved transient instance 错误解决方案
2012-07-14 23:22
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hibernate : object references an unsaved transient instance(此处省略部分错误信息),是由于调用hibernate的持久化对象(即将对象数据存入数据库)时存储顺序先后错误引起的。
举个例子吧:user表(id,name,department_id),department表(id,name),此处有两张很简单的数据表,其中user表中department_id是外键依赖department表中的id字段。那在java程序中,要先持久化(save)department对象,再持久化(save)user对象。
举个例子吧:user表(id,name,department_id),department表(id,name),此处有两张很简单的数据表,其中user表中department_id是外键依赖department表中的id字段。那在java程序中,要先持久化(save)department对象,再持久化(save)user对象。
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