4. FBV & CBV
function base view
url.py
index -> 函數名
view.py
def 函數(request):
...
===>
/index/ -> 函數名
/index/ -> 類
===>
建議:兩者都用
image.png
- 修改urls.py:
"""s14day19_2 URL Configuration
The `urlpatterns` list routes URLs to views. For more information please see:
https://docs.djangoproject.com/en/1.10/topics/http/urls/
Examples:
Function views
1. Add an import: from my_app import views
2. Add a URL to urlpatterns: url(r'^$', views.home, name='home')
Class-based views
1. Add an import: from other_app.views import Home
2. Add a URL to urlpatterns: url(r'^$', Home.as_view(), name='home')
Including another URLconf
1. Import the include() function: from django.conf.urls import url, include
2. Add a URL to urlpatterns: url(r'^blog/', include('blog.urls'))
"""
from django.conf.urls import url
from django.contrib import admin
from app01 import views
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^index/', views.index),
url(r'^login/', views.login),
# url(r'^home/', views.home),
# views.Home.as_view()是固定用法
url(r'^home/', views.Home.as_view()),
]
- 建立home.html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="/home/" method="POST">
<input type="text" name="user">
<input type="submit">
</form>
</body>
</html>
- 修改views.py:
from django.shortcuts import render,HttpResponse,redirect
# Create your views here.
def index(request):
return HttpResponse('Index')
'''
def login(request):
# 判斷使用者擷取資料方式是GET,就傳回什麼資料
if request.method == "GET":
return render(request, 'login.html')
# 判斷使用者擷取資料方式是POST,就判斷使用者送出的資料是否正确
elif request.method == "POST":
u = request.POST.get('user')
p = request.POST.get('pwd')
if u == 'alex' and p == '123':
return redirect('/index/')
else:
return render(request, 'login.html')
else:
# PUT,DELETE,HEAD,OPTION...
return redirect("/index/")
'''
def login(request):
# 判斷使用者擷取資料方式是GET,就傳回什麼資料
if request.method == "GET":
return render(request, 'login.html')
# 判斷使用者擷取資料方式是POST,就判斷使用者送出的資料是否正确
elif request.method == "POST":
# radio
# v = request.POST.get('gender')
# print(v)
# v = request.POST.getlist('favor')
# print(v)
v = request.POST.get('fff')
print(v)
# 所有上傳檔案都上傳到request.FILES
obj = request.FILES.get('fff')
print(obj, type(obj), obj.name)
# 把所上傳的檔案放到所建立的檔案夾
import os
file_path = os.path.join('upload',obj.name)
# 把上傳檔案讀取一點一點拿到
f = open(file_path, mode="wb")
for i in obj.chunks():
f.write(i)
f.close()
return render(request, 'login.html')
else:
# PUT,DELETE,HEAD,OPTION...
return redirect("/index/")
# def home(request):
# return HttpResponse('Home')
from django.views import View
class Home(View):
# 調用父類中的dispatch(相當于助理,)
def dispatch(self, request, *args, **kwargs):
print('before')
result = super(Home,self).dispatch(request, *args, **kwargs)
print('after')
return result
def get(self,request):
print(request.method)
return render(request, 'home.html')
def post(self,request):
print(request.method, 'POST')
return render(request, 'home.html')
- 效果圖:
![Python全棧 Web（Django架構、HttpRequest，csrf跨域攻擊）[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)