Hibernate映射资源无法打开，因为它不存在于Spring + Hibernate Maven项目中

Question

我正在做一个Spring/Hibernate应用程序，使用注释来自动装载服务和存储库层并且配置较少。所有似乎成功的做法，因为当我运行应用程序时，一切似乎都适当地初始化。

问题

然而，当我在我的applicationContext-datasource.xml添加映射资源，我得到一个错误，指出了一个SessionFactory不能被正确初始化，因为它似乎可以找到我的pojo.hbm。 xml文件。请参阅：

造成的：java.io.FileNotFoundException：类路径的资源[COM/dariopardo/jfreechartdemo/POJO/Grid.hbm.xml]不能打开，因为它不存在

设置

的applicationContext-datasource.xml

该文件位于下的src /主/资源/ META_INF /弹簧

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:aop="http://www.springframework.org/schema/aop" 
xmlns:context="http://www.springframework.org/schema/context" 
xmlns:jdbc="http://www.springframework.org/schema/jdbc" 
xmlns:jee="http://www.springframework.org/schema/jee" 
xmlns:lang="http://www.springframework.org/schema/lang" 
xmlns:mvc="http://www.springframework.org/schema/mvc" 
xmlns:p="http://www.springframework.org/schema/p" 
xmlns:task="http://www.springframework.org/schema/task" 
xmlns:tx="http://www.springframework.org/schema/tx" 
xmlns:util="http://www.springframework.org/schema/util" 
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd 
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd 
    http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd 
    http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd 
    http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-3.0.xsd 
    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd 
    http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd 
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd 
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd" 
    default-autowire="byName"> 

    <context:annotation-config/> 

    <tx:annotation-driven/> 

    <context:component-scan base-package="com.dariopardo.jfreechartdemo.service"> 
    <context:include-filter type="annotation" 
     expression="org.springframework.stereotype.Service"/> 
</context:component-scan> 

<context:component-scan base-package="com.dariopardo.jfreechartdemo.dao"> 
    <context:include-filter type="annotation" 
     expression="org.springframework.stereotype.Repository"/> 
</context:component-scan> 

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> 
    <property name="driverClassName" value="oracle.jdbc.OracleDriver" /> 
    <property name="url" value="jdbc:oracle:thin:@myserverhere:1521:mydb" /> 
    <property name="username" value="myusername" /> 
    <property name="password" value="mypwd" /> 
</bean> 

<!-- Hibernate SessionFactory for k12--> 
<!--<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> --> 
    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> 
    <property name="dataSource"><ref local="dataSource"/></property> 
    <property name="mappingResources"> 
     <list>            
      <value>com/dariopardo/jfreechartdemo/pojo/Grid.hbm.xml</value>    
     </list> 
    </property> 
    <property name="hibernateProperties"> 
     <props> 
     <prop key="hibernate.bytecode.use_reflection_optimizer">false</prop> 
     <prop key="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</prop> 
     <prop key="hibernate.cache.use_second_level_cache">true</prop> 
     <prop key="hibernate.cache.region_prefix">hibernate.k12</prop> 
     <prop key="hibernate.cglib.use_reflection_optimizer">false</prop> 
     <prop key="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</prop> 
     <prop key="hibernate.connection.pool_size">1</prop> 
     <!-- <prop key="hibernate.current_session_context_class">thread</prop> --> 
     <prop key="hibernate.default_schema">K12INTEL_DW</prop> 
     <prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop> 
     <prop key="hibernate.format_sql">true</prop> 
     <prop key="hibernate.generate_statistics">true</prop> 
     <prop key="hibernate.jdbc.batch_versioned_data">true</prop> 
     <prop key="hibernate.jdbc.use_streams_for_binary">true</prop> 
     <prop key="hibernate.max_fetch_depth">1</prop> 
     <prop key="hibernate.proxool.pool_alias">pool_K12</prop> 
     <prop key="hibernate.query.substitutions">yes 'Y', no 'N'</prop> 
     <prop key="hibernate.show_sql">false</prop> 
     <prop key="hibernate.transaction.auto_close_session"></prop> 
     <prop key="hibernate.transaction.flush_before_completion"></prop> 
     <prop key="hibernate.use_sql_comments">true</prop> 
    </props> 
    </property> 
    <property name="eventListeners"> 
     <map> 
      <entry key="merge"> 
       <bean class="org.springframework.orm.hibernate3.support.IdTransferringMergeEventListener"/> 
      </entry> 
     </map> 
    </property> 
</bean> 


<!-- Transaction manager for a single Hibernate SessionFactory (alternative to JTA) --> 
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager" p:sessionFactory-ref="sessionFactory"/> 

的web.xml

<?xml version="1.0" encoding="UTF-8"?> 
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> 

<!-- The definition of the Root Spring Container shared by all Servlets and Filters --> 
<context-param> 
    <param-name>contextConfigLocation</param-name> 
    <param-value>/WEB-INF/spring/root-context.xml 
       classpath*:META-INF/spring/applicationContext*.xml     
    </param-value> 
</context-param> 

<!-- Creates the Spring Container shared by all Servlets and Filters --> 
<listener> 
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
</listener> 

<!-- Processes application requests --> 
<servlet> 
    <servlet-name>appServlet</servlet-name> 
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
    <init-param> 
     <param-name>contextConfigLocation</param-name> 
     <param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value> 
    </init-param> 
    <load-on-startup>1</load-on-startup> 
</servlet> 

<servlet-mapping> 
    <servlet-name>appServlet</servlet-name> 
    <url-pattern>/</url-pattern> 
</servlet-mapping> 

我的POJO

<?xml version="1.0"?> 
<!DOCTYPE hibernate-mapping PUBLIC 
"-//Hibernate/Hibernate Mapping DTD 3.0//EN" 
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> 
<hibernate-mapping package="com.dariopardo.jfreechartdemo.pojo"> 

<class name="Grid"> 
    <cache usage="read-only" /> 
    <id name="c1"/> 
    <property name="c2"></property> 
    <property name="c3"></property> 
</class> 

<sql-query name="studentAttendanceOver95Pct"> 
    <return alias="p" class="com.dariopardo.jfreechartdemo.pojo.Grid"> 
    <return-property name="c1" column="school"/> 
    <return-property name="c2" column="at_risk"/> 
    <return-property name="c2" column="not_at_risk"/> 
    </return> 
    My custom sql query goes here 
</sql-query> 

我DAO层

@Repository 
public class K12DaoImpl extends HibernateDaoSupport implements K12DaoManager{ 

@Autowired 
public K12DaoImpl(SessionFactory sessionFactory) { 
    super.setSessionFactory(sessionFactory); 
} 

@Override 
public List<Grid> getAttendanceBySchoolOver95Pct() { 

    List<Grid> list = getHibernateTemplate().findByNamedQuery("studentAttendanceOver95Pct"); 
    return list; 
} 
} 

我的服务层

@Service 
public class K12ManagerImpl implements K12Manager { 

@Resource 
private K12DaoManager k12DaoManager; 

@Override 
public List<Grid> studentPctAttendance() { 

    return k12DaoManager.getAttendanceBySchoolOver95Pct(); 
} 
} 

如果我评论了你hml.xml在mappingResources部分似乎一切都正确连接起来，但只要我在应用程序无法初始化的映射资源部分中引入任何hbm.xml文件。

有什么想法？

感谢， - 达里奥

Answer 1

您指定映射文件的位置：

<property name="mappingResources"> 
    <list>            
     <value>com/dariopardo/jfreechartdemo/pojo/Grid.hbm.xml</value>    
    </list> 
</property> 

因此它正在寻找该目录下的映射文件：com/dariopardo/jfreechartdemo/pojo。创建这个目录，如果它不在那里，把文件放在那里，它就会起作用。

---

要清理并消除来自Hibernate的Spring配置，您可以创建一个单独的Hibernate的配置，在那里你会指定映射类，映射位置，以及更多：

<?xml version="1.0" encoding="utf-8"?> 
<!DOCTYPE hibernate-configuration PUBLIC 
"-//Hibernate/Hibernate Configuration DTD//EN" 
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 
<hibernate-configuration> 
    <session-factory> 

     <mapping package="org.gitpod.startup.bank.*" /> 
     <mapping class="org.gitpod.startup.bank.MoneyRoll"/> 

     <mapping resource="META-INF/conf/hibernate/mapping/startup-bank-named-queries.xml"/> 

    </session-factory> 
</hibernate-configuration> 

然后在你的Spring配置，点sessionFactory豆上述配置位置：

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> 
    <property name="dataSource" ref="dataSource" /> 
    <property name="configLocation" value="classpath:./META-INF/conf/hibernate/startup-hibernate-config.xml" /> 
    <property name="hibernateProperties"> ... </property> 
</bean> 

这样它会更容易管理的地点和会话工厂ç onfiguration。你可以看看这个工作示例here