# Spring MVC

#### What is a bean ?

Spring IoC container uses a **configuration metadata** (which is provided in the form of an xml file or using annotations) to instantiate **objects**, which are used by our java application. These objects are called bean.

**configuration metadata** contains following properties and their value:

* class : which java class to use to instantiate object
* name: unique id/name that will be used to request this bean
* scope, constructor-arg, properties, autowiring mode, lazy-initialization mode, initialization method, destruction method etc.