It would seem that HttpServletRequest is a request scope bean, but I have not yet been able to find any documentation on this.

Does anyone know where this is documented or where in the code base it is created?

CodePudding user response：

The HttpServletRequest is normally created and managed by servlet container (e.g. Tomcat) but not Spring. You normally do not need to define it as a spring bean unless you are doing something special. So technically from the spring 's point of view, the HttpServletRequest does not have any scope as it is not a spring bean.

But even if you need to define a HttpServletRequest bean for some reason, by default it will be in the singleton scope. (see the scope table in this).

The relationship between HttpServletRequest and a request scope bean is that Spring will make sure whenever the servlet container process a new HttpServletRequest , it will create a new request scope bean instance in case you need to access it during processing this HttpServletRequest. And this request scope bean will be destroyed after the servlet container finish process that HttpServletRequest. Such behaviour is also mentioned in the above link as :

Scopes a single bean definition to the lifecycle of a single HTTP request. That is, each HTTP request has its own instance of a bean created off the back of a single bean definition. Only valid in the context of a web-aware Spring ApplicationContext