How does DispatcherServlet manage request processing threads in an application?

DispatcherServlet in Spring MVC is a front controller that receives all HTTP requests and dispatches them to the appropriate handlers (controllers). By default, it does not manage threads directly — thread management for request processing is handled by the servlet container (e.g., Tomcat), which creates a thread pool to handle incoming requests.

When a request arrives, the DispatcherServlet receives it on one of the threads from the pool and performs a sequence of actions: determines the controller, invokes it, processes the result, and forms a response. Thus, the DispatcherServlet operates in a multithreaded environment but does not manage threads itself — this is the task of the servlet container.

Example: if 10 requests arrive simultaneously, the container will allocate 10 threads, each of which will invoke the DispatcherServlet, which in turn will call the necessary controller.