Spring 5 Design Patterns

The Front Controller design pattern

The Front Controller design pattern is a J2EE pattern; it provides solutions for the following application design problems:

• In a web application based on the Model 1 architecture, too many controllers are required to handle too many requests. It is difficult to maintain and reuse them.
• Each request has its own point of entry in the web application; it should be a single point of entry for each request.
• JSP and Servlet are the main components of the Model 1 MVC pattern, so, these components handle both action and view, violating the Single Responsibility principle.

The Front Controller provides the solution to the aforementioned design problems of the web application. In a web application, it works as ...