Model View Controller (MVC) is a widely used web development pattern. MVC pattern defines three interconnected components: model, view, and controller.

The model represents the application data, logic, or business rules.

A view is a representation of information or model. A model can have multiple views; for example, the marks of a student can be represented in a tabular format or on a graphical chart.

The controller accepts the client request and initiates commands to either update the model or change the view.

The controller controls the flow of the application. In JEE applications, a controller is usually implemented as a servlet. A controller servlet intercepts requests and then maps each request to an appropriate handler resource. In this section, we will build a classic MVC front controller servlet to redirect requests to views.

Requests with only a context path, such as http://localhost:8080/context/, are routed to the login.jsp page, all home page requests (with...