Configuration File and Mapping File

Configuration File:

• Entry's in this file helps to Hibernate software to communicate with the Database software ,because this configuration fiile contains Driver details like url,driver class name,username and password
• Entry's in the configuration file will be written as key,value pairs where key is fixed Hibernate property and values are changes bases on the database software we use

Entry's in the Configuration file are listed bellow:

• hibernate.connection.driver_class 
• hibernate.connection.username 
• hibernate.connection.password
• hibernate.connection.url 

Note: In Hibernate Configuration file hibernate is optional

Mapping File:

• In Mapping file we write o-r mapping configuration like mapping class with table mapping member variable with database table columns etc..
• In one Hibernate Application's we can take one/more mapping files,all these mapping files must be specified in configuration file

Note: if Pojo class member variables and Database column values are same no need to specify the column 

          values