Hi Vikas,

The configuration files hibernate.cfg.xml (or hibernate.properties) and mapping files *.hbm.xml are used by the Configuration class to create (i.e. configure and bootstrap hibernate) the SessionFactory, which in turn creates the Session instances. Session instances are the primary interface for the persistence service.

hibernate.cfg.xml (alternatively can use hibernate.properties): These two files are used to configure the hibernate sevice (connection driver class, connection URL, connection username, connection password, dialect etc). If both files are present in the classpath then hibernate.cfg.xml file overrides the settings found in the hibernate.properties file.

Mapping files (*.hbm.xml): These files are used to map persistent objects to a relational database. It is the best practice to store each object in an individual mapping file (i.e mapping file per class) because storing large number of persistent classes into one mapping file can be difficult to manage and maintain. The naming convention is to use the same name as the persistent (POJO) class name. For example Account.class will have a mapping file named Account.hbm.xml. Alternatively hibernate annotations can be used as part of your persistent class code instead of the *.hbm.xml files.

Configuration of hibernate

 

Create a file named as hibernate.cfg.xml inside classes folder. Use property tag to specify information about Dbms, dialect class and mapping files.

 

Tips

 

Search for hibernate.cfg.xml inside extracted folder of hibernate. Copy any of these files and make it available inside classes folder.

 

hibernate.cfg.xml file

 

"-//Hibernate/Hibernate Configuration DTD//EN"

"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

 

      com.mysql.jdbc.Driver

      jdbc:mysql://localhost/test

      root

     

      10

      true

      org.hibernate.dialect.MySQLDialect

      update

     

            

 

Here database is mysql

Database name in mysql – test

Table name-emp

Thanks