Websphere无法找到我的Hibernate管理的EntityManager [英] Websphere can't find my Hibernate-managed EntityManager

问题描述

我在Websphere 7上使用Hibernate 3.4，使用Spring 2.5.6在开始时，我的应用程序在Hibernate和OpenJPA之间似乎有问题：

p>

 
 10/02/12 10：41：50：448 GMT] 00000010 LocalEntityMa I org.springframework.orm.jpa.LocalEntityManagerFactoryBean createNativeEntityManagerFactory构建JPA EntityManagerFactory [10/02/12 10：41：50：495 GMT] 00000010 SystemErr R WARNING：发现无法识别的持久性提供程序org.hibernate.ejb.HibernatePersistence取代OpenJPA提供程序。这个提供者的属性将不会被使用。 
 

...然后是一个可爱的堆栈跟踪：

PersistenceProvider [org.apache.openjpa.persistence.PersistenceProviderImpl@6b676b67]没有为名称'mypu'返回一个EntityManagerFactory

对于信息，我的持久性单元定义如下：

 <？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> 
< persistence-unit name =myputransaction-type =JTA> 
< provider> org.hibernate.ejb.HibernatePersistence< / provider> 
< jta-data-source> jdbc / serviceTrackerDS< / jta-data-source> 
< class> ...我的课程...< / class> 
< exclude-unlisted-classes> true< / exclude-unlisted-classes> 
 <！ -  Hibernate的属性&德比 - > 
<属性> 
< property name =hibernate.dialectvalue =org.hibernate.dialect.DerbyDialect/> 
< property name =hibernate.default_schemavalue =APP/> 
< property name =hibernate.hbm2ddl.autovalue =create/> 
< property name =hibernate.show_sqlvalue =true/> 
< property name =hibernate.use_sql_commentsvalue =true/> 
< / properties> 
< / persistence-unit> 
< /余辉> 
  

我不确定如何继续。似乎错误的持久性提供程序正在某处使用，但我在persistence.xml中指定了正确的提供程序。我知道OpenJPA是Websphere 7中的默认持久性管理器，但我想在这里使用Hibernate。

任何建议？

解决方案

看来我需要向我的 entityManagerFactory jpaVendorAdapter c $ c $。

 < bean id =entityManagerFactory
 class =org.springframework.orm。 jpa.LocalEntityManagerFactoryBean> 
< property name =persistenceUnitNamevalue =mypu/> 
< property name =jpaVendorAdapter> 
< bean class =org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter/> 
< / property> 
< / bean> 
  

仍在测试，但看起来不错。

I'm using Hibernate 3.4 on Websphere 7, with Spring 2.5.6

On startup, my application seems to have problems with Hibernate vs. OpenJPA:

10/02/12 10:41:50:448 GMT] 00000010 LocalEntityMa I org.springframework.orm.jpa.LocalEntityManagerFactoryBean createNativeEntityManagerFactory Building JPA EntityManagerFactory for persistence unit 'mypu'
[10/02/12 10:41:50:495 GMT] 00000010 SystemErr     R   WARNING: Found unrecognized persistence provider "org.hibernate.ejb.HibernatePersistence" in place of OpenJPA provider.  This provider's properties will not be used.

... and then a lovely stack trace caused by:

PersistenceProvider [org.apache.openjpa.persistence.PersistenceProviderImpl@6b676b67] did not return an EntityManagerFactory for name 'mypu'

For info, my persistence unit is defined as follows:

<?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">
    <persistence-unit name="mypu" transaction-type="JTA">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <jta-data-source>jdbc/serviceTrackerDS</jta-data-source>
        <class>...my classes...</class>
        <exclude-unlisted-classes>true</exclude-unlisted-classes>
        <!-- Properties for Hibernate & Derby -->
        <properties>
            <property name="hibernate.dialect" value="org.hibernate.dialect.DerbyDialect" />
            <property name="hibernate.default_schema" value="APP"/>
            <property name="hibernate.hbm2ddl.auto" value="create" />
            <property name="hibernate.show_sql" value="true" />
            <property name="hibernate.use_sql_comments" value="true" />
        </properties>
    </persistence-unit>
</persistence>

I'm not sure how to proceed. It seems like the wrong persistence provider is being used somewhere, but I have specified the correct provider in persistence.xml. I know that OpenJPA is the default persistence manager in Websphere 7, but I'd like to use Hibernate here.

Any advice?

解决方案

It appears that I needed to add a jpaVendorAdapter to my entityManagerFactory.

<bean id="entityManagerFactory"
    class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
    <property name="persistenceUnitName" value="mypu" />
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>
    </property>
</bean>

Still testing but looks good as a resolution.

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