CSRF verification failed. Request aborted.

使用django提交form表单时，提交方式为post，总是提交不成功，报错如下：

Forbidden (403)

CSRF verification failed. Request aborted.

Help

Reason given for failure:

    CSRF token missing or incorrect.

In general, this can occur when there is a genuine Cross Site Request Forgery, or when Django's CSRF mechanism has not been used correctly. For POST forms, you need to ensure:

• Your browser is accepting cookies.

• The view function uses RequestContext for the template, instead of Context.

• In the template, there is a {% csrf_token %} template tag inside each POST form that targets an internal URL.

• If you are not using CsrfViewMiddleware, then you must use csrf_protect on any views that use the csrf_token template tag, as well as those that accept the POST data.

You're seeing the help section of this page because you have DEBUG = True in your Django settings file. Change that to False, and only the initial error message will be displayed.

You can customize this page using the CSRF_FAILURE_VIEW setting.

虽然按照上面所说的方法：

第一种：在表单里加上{% csrf_token %}就行了。
第二种方法是在Settings里的MIDDLEWARE_CLASSES增加配置：
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.middleware.csrf.CsrfResponseMiddleware',

都加上了，但是并没有什么用，网上查资料才找到答案，从view到页面时候，我是酱紫的：

from django.shortcuts import *
from contact.forms import ContactForm

def contact(request):
	if request.method=='POST':
		form= ContactForm(request.POST)
		if form.is_valid():
			cd = form.cleaned_data
			send_mail(
				cd['subject'],
				cd['message'],
				cd.get('email', '[email protected]'),
				['[email protected]'],
			)
			return HttpResponseRedirect('/contact/thanks/')
	else:
		form=ContactForm()
	return render_to_response('contact_form.html', {'form': form})

首先request没有post方法，进入else，显示的为contact_form.html页面，此时报错，网上有一种说法，必须要使用RequestContext对象，

return render_to_response('contact_form.html', {'form': form},context_instance=RequestContext(request))

将else中的语句加入RequestContext后，成功！