package one.hibi;

import java.util.*;

public class User {
private int id;
private String username;
private String password;

public User()
{

}

public void setId(int i) {
id = i;
}

public int getId() {
return id;
}

public void setUsername(String n) {
username = n;
}

public String getUsername() {
return username;
}

public void setPassword(String l) {
password = l;
}

public String getPassword() {
return password;
}
}
package one.hibi;
import java.util.Date;


import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateSession {



public static void main(String[] args) {
System.out.println("i am here");
SessionFactory factory;
Configuration cfg=new Configuration().addClass(User.class);System.out.println("i am here");
factory=cfg.buildSessionFactory();System.out.println("i am here");
Session s = factory.openSession();
System.out.println("i am here");
User u=new User();
u.setUsername("pawan");
u.setPassword("pawan");

//first one=new first();
//one.setFirst("hai");
//one.setSecond("bye");
s.save(u);
s.flush();
System.out.println("i got it");
s.close();


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

<hibernate-mapping>
<class name="User"
table="user">
<id name="id"
type="int"
unsaved-value="0">
<column name="id"
sql-type="int"
not-null="true"/>
<generator class="native"/>
</id>

<property name="username"/>
<property name="password"/>

</class>
</hibernate-mapping>

<?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 >

<!-- local connection properties -->
<property name="hibernate.connection.url">jdbc:mysql://localhost:3307/hibi</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.username">pawan</property>
<property name="hibernate.connection.password">pawan</property>
<!-- property name="hibernate.connection.pool_size"></property -->

<!-- dialect for DB2 -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>

<property name="hibernate.show_sql">false</property>
<property name="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>
<mapping resource="one/hibi/User.hbm.xml"/>

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


Exception in thread "main" org.hibernate.MappingException: Could not read mappings from resource: one/hibi/User.hbm.xml
at org.hibernate.cfg.Configuration.addClass(Configuration.java:506)
at one.hibi.HibernateSession.main(HibernateSession.java:18)
Caused by: org.hibernate.MappingException: invalid mapping
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:425)
at org.hibernate.cfg.Configuration.addClass(Configuration.java:503)
... 1 more
Caused by: org.xml.sax.SAXParseException: Document root element "hibernate-mapping", must match DOCTYPE root "hibernate-configuration".
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.rootElementSpecified(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.handleStartElement(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:422)
... 2 more