<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<!--  - Application context definition for  DispatcherServlet.  -->
<beans>
<!--  Controller for the initial "Hello" page -->   
 
   <bean id="infoFormController" class="web.InfoFormController">
        <property name="sessionForm"><value>true</value></property>
        <property name="commandName"><value>info</value></property>
        <property name="commandClass"><value>info.Company</value></property>
        <property name="successView"><value>view.htm</value></property>
         <property name="companyDAO">
            <ref bean="companyDAO"/>
        </property>
    </bean>
   
    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
                 
                  <property name="mappingResources">
                        <list>
                            <value>info/Company.hbm.xml</value>                         
                        </list>
                    </property>
                 
                   <property name="hibernateProperties">
                   <props>                    
                    <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                    <prop key="hibernate.show_sql">true</prop>
                   </props>
                   </property>
           
                    <property name="dataSource">
                        <ref bean="dataSource"/>
                    </property>
                   
                </bean>
 
   
    <bean id="companyDAO" class="info.CompanyDAO">
        <property name="sessionFactory">
             <ref bean="sessionFactory"/>
         </property>
    </bean>
   
   
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
      <property name="driverClassName"><value>com.mysql.jdbc.Driver</value></property>
      <property name="url">
        <value>jdbc:mysql://localhost:3306/javatest</value>
      </property>
      <property name="username"><value>javauser</value></property>
      <property name="password"><value>javadude</value></property>
    </bean>
   
   
   
    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
        <property name="basename"><value>messages</value></property>
    </bean>
   
<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">       
<property name="mappings">           
   <props>             
   <prop key="/info.htm">infoFormController</prop>         
   </props>       
</property>   
  </bean>
 
  <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"><value>org.springframework.web.servlet.view.JstlView</value></property>
        <property name="prefix"><value>/WEB-INF/jsp/</value></property>
        <property name="suffix"><value>.jsp</value></property>
    </bean>
 
</beans>

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
<class name="info.Company" table="COMPANY">

<id name="id" type="long" column="COMPANY_ID">   
      <generator class="native"/>
   </id>           
   
   <property name="name" type="string" column="COMPANY_NAME"/>
   <property name="description" type="string" column="DESCRIPTION"/>

</class>
</hibernate-mapping>

package cxt;

import java.io.FileNotFoundException;
import java.net.URL;

import org.hibernate.SessionFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import info.CompanyDAO;

public class DAORegistry {
    private  ApplicationContext ctx;

      public DAORegistry()throws Exception{
       ctx = new ClassPathXmlApplicationContext("CompanyInfo-servlet.xml");
    }

    public  SessionFactory getSessionFactory(){
        return (SessionFactory) ctx.getBean("factory", SessionFactory.class);
    }

    public  CompanyDAO getCompanyDAO(){
        return (CompanyDAO)ctx.getBean("companyDAO", CompanyDAO.class);
    }
   
    public  String getFilePath(String fileName) throws FileNotFoundException{
       ClassLoader loader = Thread.currentThread().getContextClassLoader();
       if(loader == null)
       {
          loader = getClass().getClassLoader();
       }
       
       URL fileURL = loader.getResource(fileName);
       if(fileURL == null)
       {
          throw new FileNotFoundException("Could not find "+fileName);          
       }
       
       return fileURL.getPath();
       
    }
}

package cxt;

import java.util.Date;
import java.util.List;

import info.Company;
import info.CompanyDAO;;

public class TestMain {

   /**
    * @param args
    */
   public static void main(String[] args) {
      
       try
       {
       // hibernate code start

           CompanyDAO companyDAO = null;
           Company company = new Company();
           company.setName("mycom");
           company.setDescription("software");
          
           DAORegistry daoRegister  = new DAORegistry();
           companyDAO = daoRegister.getCompanyDAO();
           companyDAO.saveOrUpdate(company);
                             
          
           List<Company> info = companyDAO.findAll(Company.class);
           System.out.println("Number of events - "+info.size());
           Company compant = info.get(1);
          
           System.out.println("Company Name - "+company.getName());
          
       }catch(Exception exp)
       {
          exp.printStackTrace();
       }     
                    
       // hibernate code end
     }


}

org.springframework.orm.hibernate3.HibernateSystemException: Unknown entity: info.Company; nested exception is org.hibernate.MappingException: Unknown entity: info.Company
org.hibernate.MappingException: Unknown entity: info.Company
   at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:557)
   at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1342)
   at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:180)
   at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:512)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:80)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
   at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:511)
   at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:503)
   at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:499)
   at org.springframework.orm.hibernate3.HibernateTemplate$18.doInHibernate(HibernateTemplate.java:693)
   at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:366)
   at org.springframework.orm.hibernate3.HibernateTemplate.saveOrUpdate(HibernateTemplate.java:690)
   at info.CompanyDAO.saveOrUpdate(Unknown Source)
   at cxt.TestMain.main(TestMain.java:27)