The path to learning in Python -2018/6/19

The path to learning in Python -2018/6/19 1. Registering a custom converter

converts.py

class Birthday:    =‘[0-9]{8}‘  # 匹配规则    def to_python(self, value):  # 匹配的字符串返回具体的变量值，传递到对应的视图函数中        returnint(value)    def to_url(self,value):  # 反向解析        return"%04d"% value

urls.py

from django.urls import path, register_converterfrom app01 import views, urls, convertsregister_converter(converts.Birthday, "birth")  urlpatterns = [    path(‘gyq/<birth:year>‘, views.birthday)]

views.py

def birthday(request, date):    return HttpResponse(date)

2.HttpRequest objects

URL Composition: protocol/ip/port/path/request data

Request Common Properties

HttpRequest.GETContains all the parameters of the HTTP GET

HttpRequest.POSTIf the request contains form data, wrap the data into a Querylist object

HttpRequest.methodMethod of HTTP request (Get/post)

HttpRequest.encodingData encoding for Submissions

Request Common methods

HttpRequest.get_full_path()Returns the path, including the query string.

HttpRequest.get_full_path()Determine if the request was initiated by XMLHttpRequest

View Response Object

There are three main types of response objects:

• HttpResponse ()
• Render ()
• Redirect ()

HttpResponse () in parentheses directly with a specific string as the response body

Render ()

render(request, template_name[, context]）

Request: The requested object used to generate the response.

Template_name: The full name of the template to use, such as index.html

Context: A dictionary that is added to the template context. The default is an empty dictionary. If a value in the dictionary is callable, the view is called before the template is rendered.

The path to learning in Python -2018/6/19