SignSys\SignSys\urls.py

from SignModel import views as SignModel_views
from HttpDownloads import views as HttpDownloads_views

urlpatterns = [
url(r'^$', SignModel_views.sign),
url(r'^sign/', SignModel_views.sign),
url(r'^signfinish/', SignModel_views.signfinish),
url(r'^res/', HttpDownloads_views.download),
url(r'^admin/', admin.site.urls),
]

SignSys\HttpDownloads\views.py

from django.shortcuts import render

from django.http import HttpResponse, FileResponse
from django.utils.http import urlquote
import os

Create your views here.

def download(request):
file_name = request.GET.get('file', '')

try:
    basedir = os.path.dirname(os.path.abspath(__name__))
    full_path = basedir + '/Res/' + file_name
    print(full_path)
    file = open(full_path, 'rb')
    response = FileResponse(file)
    response['Content-Type'] = 'application/octet-stream'
    # response['Content-Disposition'] = 'attachment;filename=' + file_name#.encode('utf-8')
    response['Content-Disposition'] = 'attachment;filename="%s"'%(urlquote(file_name))
    return response
except Exception:
    return HttpResponse("File not found.", status=404)

SignSys\SignSys\settings.py

INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',

'SignModel',
'HttpDownloads',

]

1. transfor to UTF-8
2. {% load static %}
3. background-image:url({% static "SignModel/Default_01.gif" %})
   (https://docs.djangoproject.com/en/1.10/howto/static-files/)
4. add: input class="input" type="text" name="name"

Content-Disposition属性有两种类型：inline 和 attachment inline ：将文件内容直接显示在页面 attachment：弹出对话框让用户下载具体例子

views.py

from django.shortcuts import render
from SignModel.models import Course
from SignModel.models import Record
from django.http import HttpResponse
from SignModel.forms import check_form

Create your views here.

def sign(request):
course_list = list(Course.objects.all().order_by('name'))
return render(request, 'sign.html', {'course_list': course_list})

def signfinish(request):
#storage in database
if request.method == 'POST':
form = check_form(request.POST)
if form.is_valid():
name = request.POST.get("name")
grade = request.POST.get("grade_list")
courses = request.POST.getlist("courses")
phone_num = request.POST.get("phone_num")
email = request.POST.get("email")
(object, created) = Record.objects.get_or_create(name=name, grade=grade, phone_num=phone_num, email=email)
if created == True:
print(name, grade, courses, phone_num)
for c in courses:
obj = Course.objects.get(name=c)
object.course_list.add(obj)
object.save()
else:
print("The record is created.")
return render(request, 'signfinish.html')
else:
print("**** invalid!! ****")
return render(request, 'sign.html')
else:
return render(request, 'signfinish.html') #for weichat flow

forms.py

from django import forms
from django.core import validators
from SignModel.models import Record

class check_form(forms.Form):
phone_num = forms.CharField(validators=[validators.RegexValidator(r'^\d{3,11}$', message='请输入正确的电话号码')])

def clean_phone_num(self):
    phone_num = self.cleaned_data.get('phone_num')
    exists = Record.objects.filter(phone_num=phone_num).exists()
    if exists:
        raise forms.ValidationError(message='此电话号码已经被注册')
    return phone_num