error: [Errno 32] Broken pipe

问题:

I am working on a Django project. All went well till I created an Ajax request to send values from the html page to the backend (views.py).

When I send the data using Ajax, I am able to view the values being passed to views.py, and it even reaches the render_to_response method and displays my page, but throws the broken pipe error in the terminal. I don't see any kind of disruption to the program, but I wanted to know if there is a way to prevent this error from occurring. I checked the other responses. But no luck so far.

When I try to hit submit again on the refreshed page, I get this message:

The page that you're looking for used information that you entered. Returning to that page might cause any action you took to be repeated. Do you want to continue? [Submit] [Cancel]`

Here is the dump:

    Traceback (most recent call last): ---------------------------------------- Exception happened during processing of request from ('127.0.0.1', 34812) ----------------------------------------   File "/usr/lib/python2.7/dist-packages/django/core/servers/basehttp.py", line 284, in run     self.finish_response()   File "/usr/lib/python2.7/dist-packages/django/core/servers/basehttp.py", line 324, in finish_response     self.write(data)   File "/usr/lib/python2.7/dist-packages/django/core/servers/basehttp.py", line 403, in write     self.send_headers()   File "/usr/lib/python2.7/dist-packages/django/core/servers/basehttp.py", line 467, in send_headers     self.send_preamble()   File "/usr/lib/python2.7/dist-packages/django/core/servers/basehttp.py", line 385, in send_preamble     'Date: %s\r\n' % http_date()   File "/usr/lib/python2.7/socket.py", line 324, in write     self.flush()   File "/usr/lib/python2.7/socket.py", line 303, in flush     self._sock.sendall(view[write_offset:write_offset+buffer_size]) error: [Errno 32] Broken pipe  Traceback (most recent call last):   File "/usr/lib/python2.7/SocketServer.py", line 284, in _handle_request_noblock     self.process_request(request, client_address)   File "/usr/lib/python2.7/SocketServer.py", line 310, in process_request     self.finish_request(request, client_address)   File "/usr/lib/python2.7/SocketServer.py", line 323, in finish_request     self.RequestHandlerClass(request, client_address, self)   File "/usr/lib/python2.7/dist-packages/django/core/servers/basehttp.py", line 570, in __init__     BaseHTTPRequestHandler.__init__(self, *args, **kwargs)   File "/usr/lib/python2.7/SocketServer.py", line 640, in __init__     self.finish()   File "/usr/lib/python2.7/SocketServer.py", line 693, in finish     self.wfile.flush()   File "/usr/lib/python2.7/socket.py", line 303, in flush     self._sock.sendall(view[write_offset:write_offset+buffer_size]) error: [Errno 32] Broken pipe 

Update: Here is the code that I am sending:

    $( document ).ready(function() { $.csrftoken(); $("#submitdata").click(function(){     //values = [tmode, fmode, t_cool, t_heat, hold];     values = {     "tmode": tmode,     "fmode": fmode,     "t_cool": t_cool,     "t_heat": t_heat,     "hold": hold     };     var jsonText = JSON.stringify(values);     $.ajax({         url: "/submitdata/",         type: 'POST',         data: jsonText,         dataType: 'json',         success:function(data){             console.log(data.success);         },         complete:function(){             console.log('complete');         },         error:function (xhr, textStatus, thrownError){             console.log(thrownError);             console.log(obj);         }     });        }); }); 

And here is my views.py:

@login_required def submitvalues(request):     #context = RequestContext(request)     if request.POST:         jsonvalues = json.loads(request.raw_post_data)         print jsonvalues         return HttpResponse(json.dumps(dict(status='updated')), mimetype="application/json") 

I am still facing the same issue. Can someone help me with this?

Edit on 5/28/2014: I just figured out the reason for a Broken Pipe. It was because I was not sending back the response from Python and was just expecting the page to refresh automatically. I am a newbie to all of this, and took me a while to figure out why this happened.

回答1:

You haven't posted any code, but this is probably because you have triggered the Ajax request on a button submit but haven't prevented the default action. So the Ajax request is made, but by the time it comes to return the data, the browser has already requested the next page anyway, so there is nothing to receive it.

回答2:

I have solved this problem by adding this:

self.send_header("Access-Control-Allow-Origin", "*") 

Because I found some error on sending post request page:

No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is there 

Then I got this solution and solved above problem.

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