Django中的cookie与session操作实例代码

def login(req):  if req.method=="POST":    uf = UserInfoForm(req.POST)    if uf.is_valid():      username = uf.cleaned_data["username"]      password = uf.cleaned_data["password"]      print username,password      users = UserInfo.objects.filter(username=username,password=password)      if users:        response = HttpResponseRedirect("/index/")        response.set_cookie("username",username,3600)        return response      else:        return HttpResponseRedirect("/login")      # return HttpResponseRedirect()  else:    uf = UserInfoForm()  return render_to_response("login.html",{"uf":uf})

def index(req):  username = req.COOKIES.get("username","")return render_to_response("index.html",{"username":username})

  Response.delete_cookie("username")

def sesion(req):  if req.method == "POST":    uf = UserInfoForm(req.POST)    if uf.is_valid():      username = uf.cleaned_data["username"]      req.session["username"] = username      return HttpResponseRedirect("/index/")  else:    uf = UserInfoForm()  return render_to_response("LoadFile.html",{"uf":uf})

def index(req):  username = req.session.get("username","")  return render_to_response("index.html",{"username":username})

del req.session['username']