`@SessionAttribute`

See equivalent in the Reactive stack

If you need access to pre-existing session attributes that are managed globally (that is, outside the controller — for example, by a filter) and may or may not be present, you can use the @SessionAttribute annotation on a method parameter, as the following example shows:

Java
Kotlin

@RequestMapping("/")
public String handle(@SessionAttribute User user) { (1)
	// ...
}

1	Using a `@SessionAttribute` annotation.

@RequestMapping("/")
fun handle(@SessionAttribute user: User): String { (1)
	// ...
}

1	Using a `@SessionAttribute` annotation.======

For use cases that require adding or removing session attributes, consider injecting org.springframework.web.context.request.WebRequest or jakarta.servlet.http.HttpSession into the controller method.

For temporary storage of model attributes in the session as part of a controller workflow, consider using @SessionAttributes as described in @SessionAttributes.