javax.persistence.PersistenceException：未找到[PersistenceUnit：vodPersistenceUnit]类或包 [英] javax.persistence.PersistenceException : [PersistenceUnit: vodPersistenceUnit] class or package not found

问题描述

出现以下错误：

创建名称为
的bean时出错org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor ＃0'
在类路径资源[jpaDaoContext.xml]中定义：初始化
bean失败;嵌套的异常是
org.springframework.beans.factory.BeanCreationException：错误
在类b $ b中定义了名为'vodEntityManagerFactory'的Bean路径资源[jpaDaoContext.xml]：调用init方法失败;
嵌套异常是javax.persistence.PersistenceException：
[PersistenceUnit：vodPersistenceUnit]类或包未找到

我看了一下Google，并被告知要选择transaction-type = RESOURCE_LOCAL，但设置已经这样。这些设置有什么问题：

 <？xml version =1.0encoding =UTF-8？> 
< persistence xmlns =http://java.sun.com/xml/ns/persistence
 xmlns：xsi =http://www.w3.org/2001/XMLSchema-instance 
 xsi：schemaLocation =http://java.sun.com/xml/ns/persistence 
 http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd
 version =1.0> 
 
 <！ -  transaction-type是RESOURCE_LOCAL或JTA  - > 
< persistence-unit name =vodPersistenceUnit
 transaction-type =RESOURCE_LOCAL> 
 
< class> mypackage.persistent.HistoriqueAction< / class> 
< class> mypackage.persistent.ParametresTechniques< / class> 
< class> mypackage.persistent.TicketType< / class> 
< class> mypackage.persistent.TransactionType< / class> 
< class> mypackage.persistent.StatutSession< / class> 
< class> mypackage.persistent.Statistique< / class> 
< class> mypackage.persistent.StatUser< / class> 
 
 <！ - 避免扫描* .class和* .hbm.xml  - > 
< exclude-unlisted-classes /> 
 
 
< / persistence-unit> 
 
< /持久性> 
  

问候

解决方案我解决了这个问题。我必须在文件persistence.xml中注释这三行：

 <！ -  class> mypackage.persistent .TicketType< /类> 
< class> mypackage.persistent.TransactionType< / class> 
< class> mypackage.persistent.StatutSession< / class  - > 
  

目前我不知道为什么它解决了这个问题。调试这个spring文件真的很难。

I got the following error :

Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0' defined in class path resource [jpaDaoContext.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'vodEntityManagerFactory' defined in class path resource [jpaDaoContext.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: vodPersistenceUnit] class or package not found

I had a look on Google and I was told to choose transaction-type=RESOURCE_LOCAL but the settings were already that way. What is wrong with these settings :

 <?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence 
   http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
    version="1.0">

    <!-- transaction-type is RESOURCE_LOCAL or JTA -->
    <persistence-unit name="vodPersistenceUnit"
        transaction-type="RESOURCE_LOCAL">

        <class>mypackage.persistent.HistoriqueAction</class>
        <class>mypackage.persistent.ParametresTechniques</class>
        <class>mypackage.persistent.TicketType</class>
        <class>mypackage.persistent.TransactionType</class>
        <class>mypackage.persistent.StatutSession</class>
        <class>mypackage.persistent.Statistique</class>
        <class>mypackage.persistent.StatUser</class>

        <!-- Avoid to scan *.class and *.hbm.xml -->
        <exclude-unlisted-classes />


    </persistence-unit>

</persistence>

Regards

解决方案

I fixed the issue. I had to comment these three lines in the file "persistence.xml" :

   <!--class>mypackage.persistent.TicketType</class>
    <class>mypackage.persistent.TransactionType</class>
    <class>mypackage.persistent.StatutSession</class--> 

For the moment i have no idea why it fixes the issue. It is really hard to debug this spring file.

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