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我正在尝试在使用 Hibernate 时获取 JPA EntityManagerFactory。此外，我正在使用动态模型，因为它们在此处描述

https://docs.jboss.org/hibernate/core/4.3/manual/en-US/html/ch04.html#persistent-classes-dynamicmodels

所以我没有 Persistence Unit、persistence.xml、orm.xml 等。我什至不知道/不控制我的类是在哪个包中创建的......

SessionFactory 就像在 WEB-INF 目录中具有休眠映射文件一样的魅力。但是另一个库需要 EntityManagerFactory，所以我试图创建它而不是 SessionFactory。

我经常收到以下错误，我不明白为什么，请帮助！谷歌向我展示了很多信息，包括工厂构建器和相关资源，这些信息表明类加载器用于获取此资源，以及解释 META-INF 位置应该工作的 javadoc，但它没有......

Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to resolve named mapping-file [com/ttt/app/hibernate.hbm.xml]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:1225)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:1221)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.buildMappingFileDescriptor(EntityManagerFactoryBuilderImpl.java:348)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.buildDeploymentResources(EntityManagerFactoryBuilderImpl.java:264)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:220)
at org.hibernate.jpa.boot.spi.Bootstrap.getEntityManagerFactoryBuilder(Bootstrap.java:51)
at org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilder(HibernatePersistenceProvider.java:182)
at org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilder(HibernatePersistenceProvider.java:177)
at org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManagerFactory(HibernatePersistenceProvider.java:152)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:336)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)
... 55 more

起居室：

    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-web-api</artifactId>
        <version>6.0</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>    

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring-version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${spring-version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring-version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring-version}</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>${hibernate-version}</version>
    </dependency>
    <!--<dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>${hibernate-version}</version>
    </dependency>-->

hbm:

<class entity-name="codeTranslation">
    <composite-id name="codeTranslationId">
        <key-property name="codeNm" type="string" length="255"/>
        <key-property name="codeCd" type="string" length="32"/>
        <key-property name="langCd" type="string" length="32"/>
    </composite-id>
    <property name="description" type="string" length="256"/>
    <property name="longDescription" type="string" length="256"/>
</class>

<class entity-name="Entity">
    <comment>
        Individual or corporate person, or contract - identifiable entity of work
    </comment>
    <id name="id" type="string" length="32">
        <generator class="uuid"/>
    </id>       
    <discriminator column="entityType" type="string" length="1"/>
... etc etc

春季应用程序上下文：

<context:property-placeholder local-override="true" ignore-resource-not-found="true"/>

<bean id="dataSource" class="org.springframework.jdbc.datasource.SimpleDriverDataSource" >
    <property name="driverClass" value="org.postgresql.Driver" />
    <property name="url" value="jdbc:postgresql://localhost/hib5" />
    <property name="username" value="postgres" />
    <property name="password" value="******" />
    <!--<property name="defaultAutoCommit" value="false" />-->
</bean>      

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <!--<property name="packagesToScan" value="have nothing to put here" />-->
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
    </property>
    <!-- these are guessing variants. tried formatting that as <list> as well -->
    <property name="mappingResources" value="com/ttt/app/hibernate.hbm.xml"/>
    <property name="mappingResources" value="/WEB-INF/hibernate.hbm.xml"/>
    <property name="mappingResources" value="/META-INF/hibernate.hbm.xml"/>
    <property name="mappingResources" value="WEB-INF/hibernate.hbm.xml"/>
    <property name="mappingResources" value="META-INF/hibernate.hbm.xml"/>
    <property name="mappingResources" value="classpath:WEB-INF/hibernate.hbm.xml"/>
    <property name="mappingResources" value="classpath:META-INF/hibernate.hbm.xml"/>
    <property name="mappingResources" value="hibernate.hbm.xml"/>
    <property name="jpaProperties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
            <prop key="hibernate.hbm2ddl.auto">update</prop>
            <prop key="hibernate.show_sql">true</prop> 
        </props>
    </property>
</bean>

<!-- old, worked that way -->
<!--<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    <property name="mappingLocations">
        <list>
            <value>/WEB-INF/hibernate.hbm.xml</value>
        </list>
    </property>
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
            <prop key="hibernate.hbm2ddl.auto">update</prop>
            <prop key="hibernate.show_sql">true</prop> 
        </props>           
    </property>
</bean>-->

<bean id="transactionManager"
      class="org.springframework.orm.hibernate4.HibernateTransactionManager">
    <!--<property name="sessionFactory" ref="sessionFactory"/>-->
    <property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>

hbm 文件位置（无处不在）：

src\main\java\com\ttt\app\
src\main\webapp\META-INF\
src\main\webapp\WEB-INF\

不幸的是，Netbeans 没有将“src\main\java\com\ttt\app\”复制到发行版中，但无论如何我想将文件保存在更接近根目录的地方，WEB-INF 是理想的，因为它与会话工厂

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1 回答 1

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在 Netbeans 中，我必须将“hibernate.hbm.xml”文件放在“src\main\resources”中（在项目视图中的“Other Sources”节点下）。然后它变得可用

<property name="mappingResources" value="hibernate.hbm.xml"/>
于 2014-09-02T08:32:05.583 回答