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hibernate错误this instance does not yet exist as a row in the database

Java > Java EE

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[问题点数：20分，结帖人lntasa]

⋅apache代理访问内网服务器，怎么解决被代理的服务器重定向（redirect） ⋅各位大虾有没有对PubMed了解的，它有没有提供开放的接口供调用？ ⋅hibernate错误this instance does not yet exist as a row in the database 更多帖子 关注私信空间博客 lntasa 等级 本版专家分：322 结帖率 93.33%: session.save(blackList);
session.refresh(blackList);
执行这上面代码报错,this instance does not yet exist as a row in the database
xml
<hibernate-mapping>
    <class name="com.BlackList" table="blacklist">
        <id name="id" type="java.lang.Long">
            <column name="ID" />
            <generator class="native" />
        </id>
        <many-to-one name="user" column = "USERID" class = "com.User"></many-to-one>
        <many-to-one name="appInfo" column = "APPID" class = "com.AppInfo"></many-to-one>
    </class>
</hibernate-mapping>
不知道怎么解决

2008-06-18 15:29:13

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⋅apache代理访问内网服务器，怎么解决被代理的服务器重定向（redirect） ⋅各位大虾有没有对PubMed了解的，它有没有提供开放的接口供调用？ ⋅hibernate错误this instance does not yet exist as a row in the database 更多帖子 关注私信空间博客 lntasa 等级 本版专家分：322: 在mysql下没有错,换成oracle10g后就出错了,用的hibernate3

2008-06-18 15:33:11

点赞只看TA 引用举报 #2得分 0

⋅apache代理访问内网服务器，怎么解决被代理的服务器重定向（redirect） ⋅各位大虾有没有对PubMed了解的，它有没有提供开放的接口供调用？ ⋅hibernate错误this instance does not yet exist as a row in the database 更多帖子 关注私信空间博客 lntasa 等级 本版专家分：322: 没人在吗,帮帮忙啊!

2008-06-18 16:11:51

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⋅散分！回来报个到 ⋅navicat 备份生成 psc psb ⋅求一英语家教（初中生暑假补习）——深圳 更多帖子 关注私信空间博客 Shine_Panda 等级 本版专家分：13202 勋章 蓝花 2008年5月 Java大版内专家分月排行榜第三: 看下 blackList 对象中的属性个数什么的是否与数据库里面相同。

2008-06-18 22:38:31

点赞只看TA 引用举报 #4得分 5

⋅火龙果是世界上最厉害的水果 ⋅散分 ⋅热烈庆祝国米2比0干净利落KO对手夺得三冠王 更多帖子 关注私信空间博客 yami251139 等级 本版专家分：13923: this instance does not yet exist as a row in the database
这个实例助词不还存在作为一行再代词数据库

看下他的状态是否是持久化的。。。

2008-06-18 22:58:10

点赞只看TA 引用举报 #5得分 15

⋅apache代理访问内网服务器，怎么解决被代理的服务器重定向（redirect） ⋅各位大虾有没有对PubMed了解的，它有没有提供开放的接口供调用？ ⋅hibernate错误this instance does not yet exist as a row in the database 更多帖子 关注私信空间博客 lntasa 等级 本版专家分：322: 原来的代码是这样的
session.save(blackList);
session.refresh(blackList)
因为blackList是关联表,存user,appinfo的id号,原来代码中user和appinfo对象中只存了id，然后执行
session.save(blackList);
session.refresh(blackList)
这个代码不是我写的，不知道为什么这么做，
现在我获得完整的user和appinfo对象，然后
session.save(blackList);
session.flush();
现在执行没有错误了，不知道为什么，
而且原来的代码在mysql中没有错误，在oracle10g中才出错，
不知道是怎么回事

2008-06-20 15:20:42

点赞只看TA 引用举报 #6得分 0

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