Hai to all,am new to hibernate,i got this exception in my first program only,can u help my frnds ?

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.hibernate.MappingException: Could not read mappings from resource: employee.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:485)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1465)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1433)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1414)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1390)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1310)
at implClasses.EmplyeeClass.save(EmplyeeClass.java:16)
at implClasses.EmployeeInsert.main(EmployeeInsert.java:15)
Caused by: org.hibernate.MappingException: class Empbean not found while looking for property: model.Empbean.java
at org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:80)
at org.hibernate.mapping.SimpleValue.setTypeUsingReflection(SimpleValue.java:276)
at org.hibernate.cfg.HbmBinder.createProperty(HbmBinder.java:2138)
at org.hibernate.cfg.HbmBinder.createClassProperties(HbmBinder.java:2115)
at org.hibernate.cfg.HbmBinder.createClassProperties(HbmBinder.java:2005)
at org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues(HbmBinder.java:368)
at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:282)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:153)
at org.hibernate.cfg.Configuration.add(Configuration.java:386)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:427)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:482)
... 7 more
Caused by: java.lang.ClassNotFoundException: Empbean
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:108)
at org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:76)
... 17 more

There is something wrong with your mapping, so we could help if you posted it...

<hibernate-mapping>

<class name="BankBean" table="bank" >
<id name="accno" type="int" column="accno"/>
<property name="name" column="name"></property>
<property name="bal" column="bal"></property>
</class>
</hibernate-mapping>

~~~~~~~
am getting following


org.hibernate.MappingException: Unknown entity: BankBean
org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:514)
org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1302)
org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:89)
org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:530)
org.hibernate.impl.SessionImpl.save(SessionImpl.java:518)
org.hibernate.impl.SessionImpl.save(SessionImpl.java:514)
BankImpl.save(BankImpl.java:17)
Operations.doPost(Operations.java:36)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)