jQuery $ .post到Django返回"500内部服务器错误"

我正在研究jQuery教程(链接),但一直停留在"RATE ME:使用AJAX"部分

jQuery的:

 $(document).ready(function() {
   // generate markup
   $("#rating").append("Please rate: ");

   for ( var i = 1; i <= 5; i++ )
     $("#rating").append("" + i + " ");

   // add markup to container and apply click handlers to anchors
   $("#rating a").click(function(e){
     // stop normal link click
     e.preventDefault();

     // send request
     $.post("/vote", {rating: $(this).html()}, function(xml) {
       // format and output result
       $("#rating div").html(
         "Thanks for rating, current average: " +
         $("average", xml).text() +
         ", number of votes: " +
         $("count", xml).text()
       );
     });
   });
 });

urls.py:

urlpatterns = patterns('',
    (r'^rating/$', 'ajax_rating.views.rating'),
    (r'^vote/$', 'ajax_rating.views.vote'),
)

views.py:

@csrf_exempt
def vote(request):
    if request.is_ajax():
        rating = request['rating']
        f = open('ratings.dat', 'w')
        votes = json.load(f)
        votes.append(rating)
        f.close()
        dict = {}
        total_rating = sum(votes)
        dict['count'] = len(votes)
        dict['avg'] = total_rating / dict['count']
        return HttpResponse(serializers.serialize('xml', dict), 'application/xml')
    else:
        return HttpResponse(status=400)

基本上,html为用户提供了1到5之间的选择(具有class = rating的锚点).单击选项后,将使用从服务器返回的计算结果刷新#rating div.

问题:当我点击某个选项时,我收到"HTTP 500内部服务器错误".甚至在请求命中视图函数,投票(请求)之前就会发生错误.我试图找出错误的原因,但没有任何线索.我不认为它与csrf有任何关系,因为我在视图函数上使用@csrf_exempt并从MIDDLEWARE_CLASSES中取出'django.middleware.csrf.CsrfViewMiddleware'.

请帮忙~~感谢您的专家

我相信POST应该转到URL /vote/而不仅仅是/vote.

rating不会是一个有效的密钥request.你可能正在寻找request.POST['rating'].或者,为了安全起见,您不要抛出更多关键错误:

rating = request.POST.get('rating', None)
if rating is None:
    return HttpResponse(status=400) ## or some error.