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How to Configure hibernate using XML files?

July 19, 2008 by Krishna Srinivasan Leave a Comment

Hibernate Configuration

Using XML files for configuring hibernate application is the most widely used approach. This is simple one and less whanges needed in the future. There is two types of configuration we can do using XML files. one is non-managed environment and another one is for managed environment. Here we will explain about the non-managed environment or standalone program. In the managed environment you can use datasource for establishing connection to the database instead directly specifying all the properties in the configuration file.

also read:

  • Introduction to Hibernate
  • Hibernate Interview Questions
  • Interceptors in Hibernate
  • Hibernate Books

This sample program uses configuration.configure().buildSessionFactory() to configure the hibernate application. It assumes that the hibernate.cfg.xml file is placed in the classpath of the project. if you want to change the configuration file name and path then pass as argument in the configuration.configure(“filename”) method.

JavaBeatHibernateExample.java

[code lang=”java”]
package javabeat.net.hibernate;

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

/**
* source : www.javabeat.net
*/
public class JavaBeatHibernateExample {
public static void main(String args[]){
Configuration configuration = new Configuration();

// configuring hibernate
SessionFactory sessionFactory = configuration.configure().buildSessionFactory();
}
}
[/code]

hibernate.cfg.xml

[code lang=”xml”]

<?xml version=’1.0′ encoding=’UTF-8′?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.url">jdbc:derby://localhost:1527/SampleDB
</property>
<property name="connection.username">root
</property>
<property name="connection.driver_class">org.apache.derby.jdbc.ClientDriver
</property>
<property name="dialect">org.hibernate.dialect.DerbyDialect
</property>
<property name="connection.password">root
</property>
<property name="transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory
</property>
<property name="current_session_context_class">thread
</property>
<property name="hibernate.show_sql">true
</property>
</session-factory>
</hibernate-configuration>

[/code]

Filed Under: Hibernate Tagged With: hibernate configuration

About Krishna Srinivasan

He is Founder and Chief Editor of JavaBeat. He has more than 8+ years of experience on developing Web applications. He writes about Spring, DOJO, JSF, Hibernate and many other emerging technologies in this blog.

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