is SPRINGMVC thread-safe?

Spring MVC, like a Servlet, is not thread-safe,

The controller for Spring MVC uses the default singleton

Because:

1, good performance

2. There is no need to use multiple cases

So:

1. There is no thread safety problem as long as member variables are not defined in the controller.

2. In case a non-static member variable must be defined, it is set to a multiple-instance mode by annotating @scope ("prototype"). Or you can still use the default singleton, which is protected with threadlocal for the object properties you want to share.