Introduction to MVC Patterns

MVC is an ideal way to construct a software or component from 3 different parts:

1. Model: The object used to store the data.

2. View: The object that provides the data display for the model.

Controller: Responsible for the specific business logic operation, that is, the controller according to the requirements of the view of the data processing, and the results stored in the

Model, it is also the responsibility to have the model and view interact as necessary to let the view update display when the data in the model changes.

The MVC pattern in JSP:

Model: One or more JavaBean objects for storing data, JavaBean primarily provides a simple setxxx () method and GetXXX () method,

In these methods, the specifics of the processing of the data are not involved.

Views: One or more JSP pages that provide data display for the model, and JSP pages primarily use HTML tags and javabean tags to display data.

Controller: One or more servlet objects that perform data processing according to the requirements submitted by the view, and store the results in JavaBean.

The servlet then uses the Redirect method to request a JSP page in the view to update the display.

Introduction to MVC Patterns