Dispatcher Servlet

DispatcherServlet acts as the Front Controller for Spring-based web applications. So now what is Front Controller? So it is pretty simple. Any request is going to come into our website the front controller is going to stand in front and is going to accept all the requests and once the front controller accepts that request then this is the job of the front controller that it will make a decision that who is the right controller to handle that request. For example, refer to the below image. Suppose we have a website called student.com and the client is make a request to save student data by hitting the following URL student.com/save and its first come to the front controller and once the front controller accepts that request it is going to assign to the Controller_1 as this controller handle the request for /save operation. Then it is going to return back the response to the Client. 

So now you might be thinking about how to create a front controller in a Spring MVC Application? But the good news is, the front controller is already created by the Spring Framework Developer, and the name of that particular controller is DispatcherServlet. You can use that front controller in your Spring MVC project. You really are not required to create a front controller but you can reuse that front controller created by the Spring Framework Developer and they named it as DispatcherServlet. We can say