django获取用户数据方法及FBV和CBV
2018-01-16 本文已影响0人
xin激流勇进
获取用户数据
FBV:function base views
CBV:class base views
定义类时，获得用户请求时，会自动调用父类View的dispath方法。
所以可以让自定义类继承父类dispath方法，这样可以自我定义一些功能。
url.py
from django.contrib import admin
from django.urls import path
from cmdb import views
urlpatterns = [
path('admin/', admin.site.urls),
path('index/', views.index),
path('login/', views.login),
path('home/', views.Home.as_view()),
]
app下的view.py
from django.shortcuts import render, HttpResponse
# Create your views here.
def index(request):
return HttpResponse('<h1>index</h1>')
def login(request):
if request.method == 'GET':
return render(request, 'login.html')
elif request.method == 'POST':
v = request.POST.get('gender')
print(v)
user = request.POST.get('user')
pwd = request.POST.get('pwd')
print(user, pwd)
love = request.POST.getlist('love')
print(love)
city = request.POST.getlist('city')
print(city)
file = request.FILES.get('file')
print(file, type(file))
import os
file_path = os.path.join('upload', file.name)
f = open(file_path, 'wb')
# from django.core.files.uploadedfile import InMemoryUploadedFile
for content in file.chunks():
f.write(content)
f.close()
return render(request, 'login.html')
else:
pass
from django.views import View
class Home(View):
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('method:', request.method)
return HttpResponse('<b>ok</b>')
def post(self, request):
pass
前端.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="/login/" method="POST" enctype="multipart/form-data">
<p>
<input name="user" type="text" placeholder="用户名">
</p>
<p>
<input name="pwd" type="password" placeholder="密码">
</p>
<p>
男：<input type="radio" value="1" name="gender">
女：<input type="radio" value="0" name="gender">
</p>
<p>
篮球：<input type="checkbox" value="1" name="love">
足球：<input type="checkbox" value="2" name="love">
棒球：<input type="checkbox" value="3" name="love">
</p>
<p>
<select name="city" multiple>
<option value="北京">北京</option>
<option value="上海">上海</option>
<option value="杭州">杭州</option>
<option value="蚌埠">蚌埠</option>
<option value="淮北">淮北</option>
</select>
</p>
<p>
<input type="file" name="file">
</p>
<p>
<input type="submit" value="提交">
</p>
</form>
</body>
</html>
路由系统
from django.urls import path, re_path
urlpatterns = [
re_path('index/(\d+)/(\d+)/', views.index, name='index'),
re_path('detail-(?P<nid>\d+)-(?P<uid>\d+).html/', views.detail, name='detail'),
]
def index(request, *args, **kwargs):
print(*args, **kwargs)
print(request.path_info)
url = reverse('index', args=(1, 2))
print('url:', url)
return render(request, 'index.html', {'user_dict': USER_DICT})
<form method="post" action="{% url 'index' 1 2 %}">
<input type="text" name="user" placeholder="用户">
<input type="submit" value="提交">
</form>
路由分发
在django中创建多个app时，为了有效的分类url
工程名目录下urls.py
from django.urls import path, re_path, include
urlpatterns = [
path('cmdb/', include('cmdb.urls')),
]
在app下创建urls.py
from django.conf.urls import url,include
from django.contrib import admin
from app02 import views
urlpatterns = [
url(r'^login/', views.login),
]
