What are different Bean Scopes in Spring?

Carvia Tech | May 05, 2019 | 1 min read | 130 views

Spring Framework support total seven scopes, out of which five are available only if you use a web-aware ApplicationContext.

singleton: This is the default scope for any bean. It created a single object instance for a single bean definition per Spring IoC container.
prototype: Any number of object instances can be created for a single bean definition. Everytime we request a bean using getBean() method call on the IoC container, a new instance will be returned.

web-aware Beans Scopes are:

request: Each HTTP request will create its own instance of bean from a single bean definition.
session: Scopes a single bean definition to the lifecycle of an HTTP session.
globalSession: Scopes a single bean definition to the lifecycle of an global HTTP session. Only valid for Portlet context.
application: Scopes a single bean definition to the lifecycle of a ServletContext.
websocket: Scopes a single bean definition to the lifecycle of a WebSocket.