Hello,
Following are the files of my application i.e contact.hbm.xml, hibernate.cfg.xml,MyExample.java.
MyExample.java is returning NullPointerException on
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
hibernate.cfg.xml
===========
<?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>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">
jdbc:mysql://localhost:3306/test</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password"></property>
<property name="hibernate.connection.pool_size">10</property>
<property name="show_sql">true</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<!-- Mapping files -->
<mapping resource="contact.hbm.xml"/>
</session-factory>
</hibernate-configuration>
contact.hbm,xml
===========
<?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>
<class name="Contact" table="user">
<id name="id" type="long" column="id" >
<generator class="assigned"/>
</id>
<property name="fullname">
<column name="fullname" />
</property>
<property name="address">
<column name="address"/>
</property>
<property name="email">
<column name="email"/>
</property>
</class>
</hibernate-mapping>
MyExample.java
===========
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class MyExample {
public static void main(
String[] args) {
Session session = null;
try{
// This step will read hibernate.cfg.xml and prepare hibernate for use
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
session =sessionFactory.openSession();
//Create new instance of Contact and set values in it by reading them from form object
System.out.println("Inserting");
Contact contact = new Contact();
contact.setId(3);
contact.setFullname("Smitha");
contact.setAddress("NY");
contact.setEmail("smithaxxx@yahoo.com");
session.save(contact);
System.out.println("Done");
}
catch(Exception e){
System.out.println(e.getMessage());
}finally{
// Actual contact insertion will happen at this step
session.close();
}
}
}
Could someone please tell what am I missing or what is wrong?
Thanks.
