请求大佬，可能是spring无法加载dataSource,一直报错如下

screen夏 2021-06-08 20:40:28

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in file [F:\user\workspace\erp_parent\erp_dao\target\classes\applicationContext_dataSource.xml]: Invocation of init method failed; nested exception is org.hibernate.boot.InvalidMappingException: Could not parse mapping document: null (INPUT_STREAM)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	... 34 more
Caused by: org.hibernate.boot.InvalidMappingException: Could not parse mapping document: null (INPUT_STREAM)
	at org.hibernate.boot.jaxb.internal.InputStreamXmlSource.doBind(InputStreamXmlSource.java:46)
	at org.hibernate.boot.jaxb.internal.InputStreamXmlSource.doBind(InputStreamXmlSource.java:38)
	at org.hibernate.boot.spi.XmlMappingBinderAccess.bind(XmlMappingBinderAccess.java:94)
	at org.hibernate.boot.MetadataSources.addInputStream(MetadataSources.java:381)
	at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:476)
	at org.springframework.orm.hibernate5.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:329)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)
	... 41 more
Caused by: org.hibernate.boot.MappingException: Unable to perform unmarshalling at line number 0 and column 0. Message: null : origin(null)
	at org.hibernate.boot.jaxb.internal.AbstractBinder.jaxb(AbstractBinder.java:177)
	at org.hibernate.boot.jaxb.internal.MappingBinder.doBind(MappingBinder.java:61)
	at org.hibernate.boot.jaxb.internal.AbstractBinder.doBind(AbstractBinder.java:102)
	at org.hibernate.boot.jaxb.internal.AbstractBinder.bind(AbstractBinder.java:57)
	at org.hibernate.boot.jaxb.internal.InputStreamXmlSource.doBind(InputStreamXmlSource.java:43)
	... 48 more

下面是我的dataSource配置文件：

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
	<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"></property>
	<property name="url" value="jdbc:oracle:thin:@localhost:1521:xe"></property>
	<property name="username" value="erpuser"></property>
	<property name="password" value="itcast"></property>
</bean>	


<bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
	<property name="dataSource" ref="dataSource"></property>
	
	
	<property name="hibernateProperties">
		<props>
			<prop key="hibernate.dialect">org.hibernate.dialect.Oracle11gDialect</prop>
			<prop key="hibernate.format_sql">true</prop>
			<prop key="hibernate.show_sql">true</prop>
		</props>
	</property>
	
	<property name="mappingLocations">
			<value>classpath*:cn/itcast/erp/entity/*.hbm.xml</value>
	</property>
</bean>

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