Python develops "Django": Routing Rules

Django Request life cycle:

-->url (matching), view function, return user string

-->url (matching), view function, open an HTML file, read the content

Create a Django Project

Django-admin Startproject MySite

CD MySite

Python manage.py Startapp CMDB

MySite

MySite

--Configuration file

-url.py

-settings.py

CD MySite

Cmdb

-views.py

-admin.py

-models.py # Creating a database table

3. Configuration

Template path

Static file path

Note #csrf

4. Writing Procedures

A.url.py Write Correspondence Relation/index/-func

B. views.py

def func (Request): # request contains all the requested data

... Business code

Return HttpResponse (' string ')

return render (Request, ' index.html ', {'})

Return redirect (' URL ')

　C. Template language

{% for item in%}

One, routing system, URL

Second, the View

Request. GET

Request. POST

Request. FILES

#checkbox等多选的内容 request. Post.getlist ()

#上传文件

obj = Request. Files.get (' name ')

Obj.name

f = open (obj.name,mode= ' WB ')

For item in Obj.chunks ():

F.write (item)

F.close ()

views.py

From django.shortcuts import render,httpresponse,redirect# Create your views Here.def index (Request): Return Httprespon Se (' Index ') ' Def login (Request): if Request.method = = ' GET ': Return render (Request, ' login.html ') elif reques T.method = = ' POST ': u = Request. Post.get (' user ') p = Request.  Post.get (' pwd ') if u = = ' Alex ' and p = = ' 123 ': Return redirect ('/index/') Else:return Redirect (' login.html ') Else: # put,delete,head,option ... return redirect ('/index/') ' Def login (Request) : if Request.method = = ' GET ': Return render (Request, ' login.html ') elif Request.method = = ' POST ': v = r Equest. Post.get (' Gender ') print (v) f = Request. Post.getlist (' favor ') # Gets the multi-person value of the checkbox print (f) FFF = Request. Files.get (' file ') # default only gets the file name content = Request. Files.get (' file ') # Fetch file contents print (Fff,type (FFF)) return render (Request, ' login.html ') Else: # Put,del EtE,head,option. Return redirect ('/index/') 

#上传文件的话, form label to do special treatment enctype= "Multipart/form-data"

<! DOCTYPE html>
Login.html
　　
Django Routing Rules
1, the URL based on the regular
Create index.html, detail.html files under the Templates directory
<! DOCTYPE html>"en">"UTF-8"> <title>Title</title>{% forK,iteminchUser_dict.items%}    <li><a target="_blank"href="/detail-{{k}}.html">{{item.name}}</a></li>{% ENDFOR%}</body>index.html
index.html
<! DOCTYPE html>"en">"  UTF-8">    <title>Title</title>detail.html
detail.html
Add the corresponding path in the urls.py file
From django.conf.urls import url,includefrom django.contrib import adminfrom CMDB import views urlpatterns = [    url (r ') ^index ', views.index),    url (r ' ^detail-(\d+). html/', Views.detail),]
　　
 Python development "Django": Routing rules