What is scope in Spring bean

Editor to share with you what scope is in Spring bean, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Scope defines how Spring creates an instance of bean.

You can take the scope attribute with you when you create a bean. There are several types of scope.

Singleton

This is also the default scope for Spring, which means that the Spring container creates only one instance of bean, and the Spring is cached after the first creation, and then is no longer created, which is the singleton pattern in the design pattern.

Prototype

Each time the thread invokes this bean, a new instance is created.

Request

Indicates that only one instance is created for requests within each request scope.

Session

Indicates that only one instance is created for requests within each session scope.

GlobalSession

This only makes sense in porlet's web application, it maps to porlet's global-scoped session, and if a normal web application uses this scope, the container creates it as a normal session-scoped scope.

How do you specify when you create a bean?

Xml mode

Annotation mode

@ Component

@ Scope ("prototype")

Public class Student {

}

The above is all the content of this article "what is scope in Spring bean?" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!