我正在使用Django建立一个网站，该网站使用AJAX将一些信息发布到后端。在这种情况下的信息是用户键入的总时间（从他开始键入时）到他按下提交的时间。但是，出于某种原因，我在命令提示符下不断收到以下错误。浏览器控制台只有0:，表示POST中的错误。我在视图中有一堆print语句来处理post（passage_result）以帮助定位错误，而且它似乎与行return HttpResponse(json.dumps(response_data), content_type="text/html")有关，因为每个print语句都会返回预期的答案。
这是错误：
[04/Jan/2015 10:30:40] "POST /typer/passage_result/ HTTP/1.1" 200 140
Traceback (most recent call last):
File "C:\Python34\lib\wsgiref\handlers.py", line 138, in run
self.finish_response()
File "C:\Python34\lib\wsgiref\handlers.py", line 180, in finish_response
self.write(data)
File "C:\Python34\lib\wsgiref\handlers.py", line 274, in write
self.send_headers()
File "C:\Python34\lib\wsgiref\handlers.py", line 332, in send_headers
self.send_preamble()
File "C:\Python34\lib\wsgiref\handlers.py", line 255, in send_preamble
('Date: %s\r\n' % format_date_time(time.time())).encode('iso-8859-1')
File "C:\Python34\lib\wsgiref\handlers.py", line 453, in _write
self.stdout.write(data)
File "C:\Python34\lib\socket.py", line 391, in write
return self._sock.send(b)
ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine
[04/Jan/2015 10:30:40] "POST /typer/passage_result/ HTTP/1.1" 500 59
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 58785)
Traceback (most recent call last):
File "C:\Python34\lib\wsgiref\handlers.py", line 138, in run
self.finish_response()
File "C:\Python34\lib\wsgiref\handlers.py", line 180, in finish_response
self.write(data)
File "C:\Python34\lib\wsgiref\handlers.py", line 274, in write
self.send_headers()
File "C:\Python34\lib\wsgiref\handlers.py", line 332, in send_headers
self.send_preamble()
File "C:\Python34\lib\wsgiref\handlers.py", line 255, in send_preamble
('Date: %s\r\n' % format_date_time(time.time())).encode('iso-8859-1')
File "C:\Python34\lib\wsgiref\handlers.py", line 453, in _write
self.stdout.write(data)
File "C:\Python34\lib\socket.py", line 391, in write
return self._sock.send(b)
ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Python34\lib\wsgiref\handlers.py", line 141, in run
self.handle_error()
File "C:\Python34\lib\wsgiref\handlers.py", line 368, in handle_error
self.finish_response()
File "C:\Python34\lib\wsgiref\handlers.py", line 180, in finish_response
self.write(data)
File "C:\Python34\lib\wsgiref\handlers.py", line 274, in write
self.send_headers()
File "C:\Python34\lib\wsgiref\handlers.py", line 331, in send_headers
if not self.origin_server or self.client_is_modern():
File "C:\Python34\lib\wsgiref\handlers.py", line 344, in client_is_modern
return self.environ['SERVER_PROTOCOL'].upper() != 'HTTP/0.9'
TypeError: 'NoneType' object is not subscriptable
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Python34\lib\socketserver.py", line 613, in process_request_thread
self.finish_request(request, client_address)
File "C:\Python34\lib\socketserver.py", line 344, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "C:\Python34\lib\site-packages\django\core\servers\basehttp.py", line 129
, in __init__
super(WSGIRequestHandler, self).__init__(*args, **kwargs)
File "C:\Python34\lib\socketserver.py", line 669, in __init__
self.handle()
File "C:\Python34\lib\wsgiref\simple_server.py", line 133, in handle
handler.run(self.server.get_app())
File "C:\Python34\lib\wsgiref\handlers.py", line 144, in run
self.close()
File "C:\Python34\lib\wsgiref\simple_server.py", line 35, in close
self.status.split(' ',1)[0], self.bytes_sent
AttributeError: 'NoneType' object has no attribute 'split'
----------------------------------------
以下是passage_result视图：
@csrf_exempt
def passage_result(request):
if request.method == 'POST':
# Get all of the information needed
user_passage = request.POST.get('user_passage')
total_time = request.POST.get('time_taken')
current_passage = request.POST.get('original_passage')
creation_date = request.POST.get('creation_time')
user = request.user
original_passage = Passage.objects.get(name=current_passage, user=user)
print("THIS IS THE TOTAL TIME " + str(total_time))
# Measure word length and character length so I can measure accuracy/wpm
user_split = re.findall(r'((?:(?<=^\s)\s*)?\S+\s*(?=\s\S|$))', user_passage)
user_wlength = len(user_split)
user_clength = len(user_passage)
# Compare both strings against one another
errors, accuracy, error_indices = checkString.checkWord(original_passage.text_body, user_passage)
print("Errors: "+ str(errors))
print("Accuracy: " + str(accuracy))
# Round up the numbers, calculate wpm and cpm
accuracy = round(accuracy, 4)
minutes = float(total_time) / float(60000)
wpm = round(float(user_wlength/minutes), 2)
cpm = round(float(user_clength/minutes), 2)
overall = round((wpm + accuracy)/2, 2)
# Create a passage result for this instance, and save it to the database
passageResult = PassageResult(user=user, passage=original_passage, creation_date=creation_date, user_passage=user_passage, total_time=total_time,
total_words=user_wlength, total_chars=user_clength, errors=errors, accuracy=accuracy,
wpm=wpm, cpm=cpm, overall=overall)
passageResult.save()
# Get the ranking of each passage, and save it.
sorted_results = PassageResult.objects.order_by('-overall')
for i in range(0, len(sorted_results)-1):
sorted_results[i].rank = i + 1
sorted_results[i].save()
print(sorted_results[i].rank)
# Create the response data that will be dumped json style
response_data = {}
response_data['result'] = 'Passage submitted successfully!'
response_data['user_text'] = passageResult.user_passage
response_data['total_time'] = passageResult.total_time
response_data['author'] = passageResult.user.username
return HttpResponse(
json.dumps(response_data),
content_type="text/html"
)
else:
return HttpResponse(
json.dumps({"nothing to see": "this isn't happening"}),
content_type="text/html"
)
这是我的jQuery代码：
//Create a time so we can update it later
var time = (new Date()).getTime();
//function to update the time when the user starts typing
$('#id_user_passage').on('keyup', function (event) {
event.preventDefault();
time = (new Date()).getTime();
});
// function to get the total time the user typed from when he started to when
// he clicked the submit button, and POST the information to the backend,
// along with what he typed and when he submitted it.
$('#passage_result_form').on('submit', function(event) {
event.preventDefault();
var total_time = (new Date()).getTime() - time;
var current_time = (new Date()).getTime();
console.log('Time passed : ' + total_time + ' milliseconds');
console.log('form submitted!')
$.ajax({
url: "/typer/passage_result/",
type: "POST",
data: { 'user_passage': $('#id_user_passage').val(), 'original_passage': $("#name").text(), 'time_taken': total_time,
'creation_time' : current_time},
success: function (json) {
total_time = 0;
console.log(json);
console.log("success");
},
error: function (xhr, errmsg, err) {
$('#results').html("<div class='alert-box alert radius' data-alert>Oops! We have encountered an error: " + errmsg +
" <a href='#' class='close'>×</a></div>");
console.log(xhr.status + ": " + xhr.responseText);
}
});
location.replace('/typer/result/');
});
答案 0 :(得分：0)
我遇到了同样的问题并通过这样做解决了它，只需将“async：false”添加到ajax