request可以直接在前端用，不需要在render里再定義。
request.body //前端頁面數據內容的原生值。如果前端不是從POST，GET，FILES里面獲取的數據，就從body里獲取
request.POST //從request.body里拿數據再封裝到request.POST里面
request.FILES //從request.body里拿數據再封裝到request.FILES里面
request.GET //從request.body里拿數據再封裝到request.GET里面
request.XXX.getlist //獲取列表
request.post.getlist //獲取列表
request.Meta (request headers) //獲取請求頭相關的信息。
request.method //請求方法
request.path_info //獲取URL
request.COOKIES //獲取cookies
cookie信息或在rep里添加的鍵值對將會寫到response headers里面
a= 'python'
rep = HttpResponse(...) 或 rep ＝ render(request, ...)或rep =redirect('/index/')
a= 'python'
rep = HttpResponse(a)
rep['name'] = 'zhou'
rep.set_cookie()
return rep
HttpResponse可以返回字節和字符串
def index(request): from django.core.handlers.wsgi import WSGIRequest print(type(request)) print(request.environ) for k,v in request.environ.items(): //查看所有用戶請求信息
print(k,v) print(request.environ['HTTP_USER_AGENT']) //查看請求終端類型
return HttpResponse('OK')
用HttpResponse發送圖片
urls
url(r'^image.html', views.get_image),
視圖函數
def get_image(request): with open('static/imgs/16.jpg','rb') as fp: data = fp.read() return HttpResponse(data)
前端html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <img src="/image.html"> </body> </html>
CBV
實例：
視圖函數
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): # GET方式提交 print('get') return render(request,'home.html') def post(self,request): # POST方式提交 print('post') return render(request,'home.html')
urls
urlpatterns = [ url(r'^home/', views.Home.as_view()), ]