Django view and URL configuration

I. MTV mode

1. Overview

Django's MTV mode is essentially the same as MVC, and it is also to maintain a loosely coupled relationship between components, but the definition is slightly different. Django's MTV is the value:

• **M stands for Model: **Responsible for relational mapping (ORM) between business objects and databases.
• **T stands for Template: **Responsible for how the page is displayed to the user (html).
• V stands for View: responsible for business logic and calling Model and Template when appropriate.

The View component is provided in Django to act as a C-controller in MVC.

2. The main responsibilities of the view

• Receive request
• Scheduling Model, processing business logic
• Response request/forward Template (display data related logic)

Second, the basic development process

1. Create an App and define functions in the view

In the views.py of each App, define a hello function

def hello(request)