标题:Hibernate的Load问题
只看楼主
BlueInk
Rank: 1
等 级:新手上路
帖 子:3
专家分:0
注 册:2009-4-1
结帖率:100%
 问题点数:0 回复次数:1 
Hibernate的Load问题
首先,数据库里有记录,但用Junit测试Load方法时报
    org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.hibernate.Teacher#2]
    at org.hibernate.impl.SessionFactoryImpl$2.handleEntityNotFound(SessionFactoryImpl.java:419)
    at org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:154)
    at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:143)
    at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:174)
    at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190)
    at com.hibernate.Teacher_$$_javassist_0.getName(Teacher_$$_javassist_0.java)
    at com.hibernate.HibernateCoreAPITest.Load(HibernateCoreAPITest.java:71)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
具体代码是:


    @Test
    public void Load(){
        
        Session session=sf.getCurrentSession();
        session.beginTransaction();
        Teacher t=(Teacher)session.load(Teacher.class, 2);
        System.out.println(t.getName());
        session.getTransaction().commit();
        
    }
    @Test
    public void Get(){
        
        Session session=sf.getCurrentSession();
        session.beginTransaction();
        Teacher t=(Teacher)session.get(Teacher.class, 2);
        System.out.println(t.getName());
        session.getTransaction().commit();
        
    }
Get同样是,测试完后数据库的数据就丢失了!!各位大虾帮帮忙吧!!

搜索更多相关主题的帖子: Hibernate Load 
2009-12-22 18:41
流星雨
Rank: 16Rank: 16Rank: 16Rank: 16
来 自:JAVA风暴
等 级:版主
威 望:43
帖 子:1851
专家分:1858
注 册:2004-5-30
得分:0 
数据丢了肯定跟这个没有关系,Junit写的tastcase根本不会去操作数据库。仅仅只是对你的方法进行测试。一般都是用EasyMock去模拟一个返回值。

感谢你们带我找到星空下美丽神话,无论经历多少苦痛也不放弃的梦;插上希望翅膀乘风我和你们飞翔,飞过海天尽头携手把梦想实现.....
2009-12-24 10:19



参与讨论请移步原网站贴子:https://bbs.bccn.net/thread-294080-1-1.html




关于我们 | 广告合作 | 编程中国 | 清除Cookies | TOP | 手机版

编程中国 版权所有,并保留所有权利。
Powered by Discuz, Processed in 0.102443 second(s), 7 queries.
Copyright©2004-2024, BCCN.NET, All Rights Reserved