Django：困扰uploadind和处理图像（CSRF令牌丢失或不正确）

Question

我只是试图用Django练习。我试图做一个简单的应用程序，它允许您上传图像并返回它的像素化版本。 我有两个视图：一个显示表单，一个处理图像并返回结果。 问题是提出'禁止（403）'而不是结果。给出失败的原因：CSRF令牌丢失或不正确。

urls.py

from django.conf.urls import url 
from . import views 

urlpatterns = [ 
    url(r'^$', views.index, name='index'), 
    url(r'^result/$', views.pixelate, name='pixelate') 
] 

views.py

from django.http import HttpResponse 
from django.shortcuts import render_to_response 
from .forms import UploadImageForm 
from .pixelate import pixelate_image 

def index(request): 
    form = UploadImageForm() 
    return render_to_response('pixelate/index.html', {'form': form}) 

def pixelate(request): 
    form = UploadImageForm(request.POST, request.FILES) 
    if form.is_valid(): 
     response = HttpResponse(content_type='image/png') 
     response['Content-Disposition'] = 'filename="image.png"' 

     img = pixelate_image(request.FILES['image']) 
     response.write(img) 
     return response 

pixelate.py

from PIL import Image 
from io import BytesIO 

def pixelate_image(img, pixelSize=9): 
    buffer = BytesIO() 
    p = Image(buffer) 
    image = p.open(img) 
    image = image.resize((image.size[0]/pixelSize, image.size[1]/pixelSize), Image.NEAREST) 
    image = image.resize((image.size[0]*pixelSize, image.size[1]*pixelSize), Image.NEAREST) 
    image.save() 
    final_image = buffer.getvalue() 
    buffer.close() 
    return final_image 

forms.py

from django import forms 

class UploadImageForm(forms.Form): 
    image = forms.ImageField() 

的index.html

<form action="{% url 'pixelate:pixelate' %}" method="post"> 
    {% csrf_token %} 
    {{ form }} 
    <input type="submit" value="Submit" /> 
</form> 

Answer 1

的index.html

<form action="{% url 'pixelate:pixelate' %}" method="post" enctype="multipart/form-data"> 
    {% csrf_token %} 
    {{ form }} 
    <input type="submit" value="Submit" /> 
</form>