Hibernate中的懒加载异常

pengpeng11 2008-11-05 05:16:12

ERROR LazyInitializationException:19 - could not

initialize proxy - no Session

我把<many-to-one>端的lazay已经设为了false，怎么还出现这个异常啊，有会的教下我，谢谢

...全文

97 2 打赏收藏转发到动态举报

写回复

用AI写文章

2 条回复

切换为时间正序

请发表友善的回复…

发表回复

pengpeng11 2008-11-05

打赏
举报

dao代码:



       /**

	 * 根据任务ID查询

	 * @param task_id

	 * @return

	 */

	public Task get(int task_id) 

	{

		

		return (Task)getHibernateTemplate().load(Task.class, task_id);

	}

测试代码:



        @Test

	public void testSel()

	{

		Task t = dao.get(1);

		System.out.println(t.getType()); //根据id来查询Task的相关信息时会有could not 

                                                   initialize proxy - no Session 抛出



	}

task.hbm.xml



 <class name="com.om.fee.model.Task" table="task" catalog="om">

        <id name="task_id" type="java.lang.Integer">

            <column name="task_id" />

            <generator class="native"></generator>

        </id>

        <property name="reason" type="java.lang.String">

            <column name="reason" length="65535" />

        </property>

        <property name="type" type="java.lang.String">

            <column name="type" length="30" />

        </property>

        <property name="start_time" type="java.util.Date">

            <column name="start_time" length="10" />

        </property>

        <property name="end_time" type="java.util.Date">

            <column name="end_time" length="10" />

        </property>

        <set name="fees" inverse="true">

            <key>

                <column name="task_id" not-null="true"/>

            </key>

            <one-to-many class="com.om.fee.model.Fee"/>

        </set>

    </class>

fee.hbm.xml



<class name="com.om.fee.model.Fee" table="fee" catalog="om">

        <id name="fee_id" type="java.lang.Integer">

            <column name="fee_id" />

            <generator class="native"></generator>

        </id>

      	

      	<many-to-one name="task" column="task_id" class="com.om.fee.model.Task" not-null="true" lazy="false">	

      	</many-to-one>

        <property name="proposer" type="java.lang.String">

            <column name="proposer" length="20" />

        </property>

        <property name="department" type="java.lang.String">

            <column name="department" />

        </property>

        <property name="reason" type="java.lang.String">

            <column name="reason" length="500" />

        </property>

        <property name="money" type="java.lang.Float">

            <column name="money" precision="12" scale="0" />

        </property>

        <property name="actual_money" type="java.lang.Long">

            <column name="actual_money" precision="12" scale="0" />

        </property>

        <property name="time" type="java.sql.Date">

            <column name="time" length="10" />

        </property>

        <property name="approver" type="java.lang.String">

            <column name="approver" length="10" />

        </property>

        <property name="note" type="java.lang.String">

            <column name="note" length="500" />

        </property>

    </class>