hibernate.cfg.xml如下<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping> <class name="Parent" table="Parent">
<id name="id" column="parent_id" unsaved-value="null">
<generator class="increment"/>
</id>
<set name="children" lazy="false" cascade="all" inverse="false">
<key column="parent_id"/>
<one-to-many class="Child"/>
</set>
</class> <class name="Child" table="Child">
<id name="id" column="child_id" unsaved-value="null">
<generator class="increment"/>
</id>
<property name="name"/>
</class></hibernate-mapping>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping> <class name="Parent" table="Parent">
<id name="id" column="parent_id" unsaved-value="null">
<generator class="increment"/>
</id>
<set name="children" lazy="false" cascade="all" inverse="false">
<key column="parent_id"/>
<one-to-many class="Child"/>
</set>
</class> <class name="Child" table="Child">
<id name="id" column="child_id" unsaved-value="null">
<generator class="increment"/>
</id>
<property name="name"/>
</class></hibernate-mapping>
解决方案 »
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即:
Parent中,
<set name="children" lazy="true" inverse="true">
<key column="parent_id"/>
<one-to-many class="Child"/>
</set>
Child中:
<many-to-one name="parent" column="parent_id"/" />
Could not synchronize database state with session
是什么意思?
说白了,就是无法执行将对象状态update的sql.
和这个类似:http://dev.csdn.net/develop/article/58/58177.shtm不知道为什么????
和这个类似:http://dev.csdn.net/develop/article/58/58177.shtm但不知道为什么????
高手呢?
救命!
Error is : Could not synchronize database state with session .