django获取用户数据方法及FBV和CBV

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('
index
')


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('ok')

    def post(self, request):
        pass

前端.html

    
    


    

        

            
        
        

            
        
        

            男：
            女：
        
        

            篮球：
            足球：
            棒球：
        
        

            
                北京
                上海
                杭州
                蚌埠
                淮北
            
        
        

            
        
        

            
        
    

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\d+)-(?P\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})


        
        

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),
            ]