1.如果不是自动增长需要写明
<generator class="assigned"/>
<?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"> <class name="DomainModel.Entities.CUSTOMER, DomainModel" table="CUSTOMER"> <id name="CustomerID" column="CustomerID" type="Int32" unsaved-value="0"> <generator class="assigned"/> </id> <property name="FirstName" type="String" column="FirstName" /> <property name="LastName" type="String" column="LastName" /> <bag name="ORDERs" cascade="all" lazy="true" table="`ORDER`"> <key column="CustomerID" /> <one-to-many class="DomainModel.Entities.ORDER, NHibernate" /> </bag> </class> </hibernate-mapping>
在调用
Isession.Save()这个方法之后调用
Isession.Flush()数据才真正保存到数据库中
2.如果主键是自动增长
mapping中设置
<generator class="native"/>
在调用Isession.Save()之后就不用调用flush方法了。