高手帮忙看下是什么问题？急死了！

Question

net.sf.hibernate.MappingException: Error reading resource: ems_sh/hibernate/mapping_files/User.hbm.xml
at net.sf.hibernate.cfg.Configuration.addResource(Configuration.java:318)
at net.sf.hibernate.cfg.Configuration.doConfigure(Configuration.java:976)
at net.sf.hibernate.cfg.Configuration.doConfigure(Configuration.java:928)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:856)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:842)
at ems_sh.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:16)
at ems_sh.struts.action.LoginAction.execute(LoginAction.java:28)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1072)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:465)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:348)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6981)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3892)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2766)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)
Caused by: net.sf.hibernate.MappingException: persistent class [ems_sh.hibernate.entity.User] not found
at net.sf.hibernate.cfg.Binder.bindClass(Binder.java:84)
at net.sf.hibernate.cfg.Binder.bindRootClass(Binder.java:221)
at net.sf.hibernate.cfg.Binder.bindRoot(Binder.java:1229)
at net.sf.hibernate.cfg.Configuration.add(Configuration.java:249)
at net.sf.hibernate.cfg.Configuration.addInputStream(Configuration.java:285)
at net.sf.hibernate.cfg.Configuration.addResource(Configuration.java:315)
... 22 more
Caused by: java.lang.ClassNotFoundException: ems_sh.hibernate.entity.User
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:199)
at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:224)
at weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass(ChangeAwareClassLoader.java:41)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at net.sf.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:86)
at net.sf.hibernate.cfg.Binder.bindClass(Binder.java:81)
... 27 more
Initial SessionFactory creation failed.

Answer 1

hibernate.cfg.xml文件
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration
    PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd"><hibernate-configuration>    <session-factory>        <!-- Database connection settings -->
        <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
        <property name="connection.url">jdbc:oracle:thin:@localhost:1521:o9idb</property>
        <property name="connection.username">ycx</property>
        <property name="connection.password">ycx</property>        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>
        <property name="c3p0.max_size">5</property>
        <property name="c3p0.timeout">600</property>        <!-- SQL dialect -->
        <property name="dialect">net.sf.hibernate.dialect.Oracle9Dialect</property>        <!-- Use EHCache but not the query cache. -->
        <property name="cache.provider_class">net.sf.ehcache.hibernate.Provider</property>
        <property name="cache.use_query_cache">false</property>
        <property name="cache.use_minimal_puts">false</property>        <!-- Print SQL to stdout.
        <property name="show_sql">true</property>-->        <!-- Create the tables
        <property name="hibernate.hbm2ddl.auto">update</property>-->
        <mapping resource="ems_sh/hibernate/mapping_files/User.hbm.xml"/>    </session-factory></hibernate-configuration>
User.hbm.xml文件<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-mapping
    PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd"><hibernate-mapping>
   <class name="ems_sh.hibernate.entity.User" table="user_table">
   <id name="id" type="integer">
      <column name="id" />
   <generator class="native"/>
   </id>   <property name="name" type="string">
      <column name="name" />
   </property>   <property name="user_type" type="string">
          <column name="user_type" />
   </property>  <property name="password" type="string">
          <column name="password" />
  </property>
  </class></hibernate-mapping>

Answer 2

Error reading resource: ems_sh/hibernate/mapping_files/User.hbm.xml
查看一下你的User.hbm.xml的路径是否正确，hibernateSessionFactory有没有configure过？

Answer 3

路径检查了啊 感觉没问题吗？应该怎么写啊？
hibernateSessionFactory有没有configure过？是指在hibernate.cfg.xml中吗？

Answer 4

大家注意这个地方
Initial SessionFactory creation failed.在HibernateUtil.java中
public class HibernateUtil {
        private static final SessionFactory sessionFactory;        static {
                try {
                        // Create the SessionFactory
                        sessionFactory = new Configuration().configure()
                                        .buildSessionFactory();
                } catch (Throwable ex) {
                        ex.printStackTrace();
                        System.out.println("Initial SessionFactory creation failed.");
                        throw new ExceptionInInitializerError(ex);
                }
        }        public static final ThreadLocal tLocalsess = new ThreadLocal();        public static final ThreadLocal tLocaltx = new ThreadLocal();        /*
         * getting the thread-safe session for using
         */
        public static Session currentSession() {
                Session session = (Session) tLocalsess.get();                // open a new one, if none can be found.
                try {
                        if (session == null || !session.isOpen()) {
                                session = openSession();
                                tLocalsess.set(session);
                        }
                } catch (HibernateException e) {
                        // throw new HibernateException(e);
                        e.printStackTrace();
                }
                return session;
        }        /*
         * closing the thread-safe session
         */
        public static void closeSession() {                Session session = (Session) tLocalsess.get();
                tLocalsess.set(null);
                try {
                        if (session != null && session.isOpen()) {
                                session.close();
                        }                } catch (HibernateException e) {
                        // throw new InfrastructureException(e);
                }
        }        /*
         * begin the transaction
         */
        public static void beginTransaction() {
                System.out.println("begin tx");
                Transaction tx = (Transaction) tLocaltx.get();
                try {
                        if (tx == null) {
                                tx = currentSession().beginTransaction();
                                tLocaltx.set(tx);
                        }
                } catch (HibernateException e) {
                        // throw new InfrastructureException(e);
                }
        }        /*
         * close the transaction
         */
        public static void commitTransaction() {
                Transaction tx = (Transaction) tLocaltx.get();
                try {
                        if (tx != null && !tx.wasCommitted() && !tx.wasRolledBack())
                                tx.commit();
                        tLocaltx.set(null);
                        System.out.println("commit tx");
                } catch (HibernateException e) {
                        // throw new InfrastructureException(e);
                }
        }        /*
         * for rollbacking
         */
        public static void rollbackTransaction() {
                Transaction tx = (Transaction) tLocaltx.get();
                try {
                        tLocaltx.set(null);
                        if (tx != null && !tx.wasCommitted() && !tx.wasRolledBack()) {
                                tx.rollback();
                        }
                } catch (HibernateException e) {
                        // throw new InfrastructureException(e);
                }
        }        private static Session openSession() throws HibernateException {
                return getSessionFactory().openSession();
        }        private static SessionFactory getSessionFactory() throws HibernateException {
                return sessionFactory;// SingletonSessionFactory.getInstance();
        }
}

Answer 5

一般把*.hbm.xml,hibernate.cfg.xml放到classpath中. 就你的上面的.可以这样改:
hibernate.cfg.xml文件:
<mapping resource="User.hbm.xml"/>User.hbm.xml文件:把他放到ems_sh的上一级目录就行了(亦即hibernate.cfg.xml和User.hbm.xml都放在同一目录)

Answer 6

IhaveGotYou(扬扬)你说的classpath是指虚拟目录吗？

Answer 7

我照你说的改了 
错误变成
net.sf.hibernate.MappingException: Error reading resource: User.hbm.xml
at net.sf.hibernate.cfg.Configuration.addResource(Configuration.java:318)
at net.sf.hibernate.cfg.Configuration.doConfigure(Configuration.java:976)
at net.sf.hibernate.cfg.Configuration.doConfigure(Configuration.java:928)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:856)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:842)
at ems_sh.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:16)
at ems_sh.struts.action.LoginAction.execute(LoginAction.java:27)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1072)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:465)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:348)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6981)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3892)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2766)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)
Caused by: net.sf.hibernate.MappingException: persistent class [User] not found
at net.sf.hibernate.cfg.Binder.bindClass(Binder.java:84)
at net.sf.hibernate.cfg.Binder.bindRootClass(Binder.java:221)
at net.sf.hibernate.cfg.Binder.bindRoot(Binder.java:1229)
at net.sf.hibernate.cfg.Configuration.add(Configuration.java:249)
at net.sf.hibernate.cfg.Configuration.addInputStream(Configuration.java:285)
at net.sf.hibernate.cfg.Configuration.addResource(Configuration.java:315)
... 22 more
Caused by: java.lang.ClassNotFoundException: User
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:199)
at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:224)
at weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass(ChangeAwareClassLoader.java:41)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at net.sf.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:86)
at net.sf.hibernate.cfg.Binder.bindClass(Binder.java:81)
... 27 more
Initial SessionFactory creation failed.

Answer 8

按IhaveGotYou(扬扬)做的没错，一定是你搞错了