java - Hibernate + Spring - 找不到 xml 映射

Question

我有一个具有以下文件夹结构的简单应用程序:

• 项目文件夹
• |-----源
• |------------包名
• |----------------{源文件}
• |------------元信息
• |----------------{beans.xml}
• |----------------{hibernate.cfg.xml}
• |----------------{EntityMapping.hbm.xml}

这是 beans.xml Spring 配置文件的一部分:

<bean id="propertyConfigurer"  class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="location" value="classpath:./META-INF/jdbc.properties" />
</bean>

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="${jdbc.driverClassName}" />
    <property name="url" value="${jdbc.url}" />
    <property name="username" value="${jdbc.username}" />
    <property name="password" value="${jdbc.password}" />
</bean>

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="configLocation" value="classpath:./META-INF/hibernate.cfg.xml" />
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">${hibernate.dialect}</prop>
        </props>
    </property>

    <property name="mappingResources">
<list>
      <value>classpath:./META-INF/EntityMapping.hbm.xml</value>
</list>
 </property>
</bean>

<tx:annotation-driven transaction-manager="txManager" />

<bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>

当我开始单元测试时出现以下异常:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'wrapperClass' defined in class path resource [META-INF/beans.xml]: Cannot resolve reference to bean 'wrapperClassField' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'xmlBooksource' defined in class path resource [META-INF/beans.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [META-INF/beans.xml]: Invocation of init method failed; nested exception is java.io.FileNotFoundException: class path resource [classpath:/META-INF/EntityMapping.hbm.xml] cannot be opened because it does not exist

当我输入时抛出同样的异常

<property name="mappingResources">
<list>
      <value>EntityMapping.hbm.xml</value>
</list>
 </property>

为什么 spring 找不到这个文件，我必须如何填充它的位置才能使这段代码工作？

提前致谢。

Answer 1

您是否尝试过删除 classpath: 前缀？在查看 Hibernate 代码时，mappingResources setter 期望将字符串传递给 new ClassPathResource(String) .这已经需要类路径资源。然后该字符串被传递给 ClassLoader.getResourceAsStream(String) .这些代码都不会从资源字符串的前面去除“classpath:”前缀。