MultiValueDictKeyError at/django

我刚刚学了烧瓶后，我正在学习django。我有一个项目，我必须在烧瓶中做，现在在django有相同的项目。我尽管用相同的代码去“转换”过来。它在/ farm处抛出一个MultiValueDictKeyError错误。如果有人能告诉我在上班途中MultiValueDictKeyError at/django

完整的追溯如下

回溯：

File "C:\Users\dbhol\Desktop\DojoAssignments\Python\myenvirnoments\djangoENv\lib\site-packages\django\core\handlers\exception.py" in inner 
    42.    response = get_response(request) 

File "C:\Users\dbhol\Desktop\DojoAssignments\Python\myenvirnoments\djangoENv\lib\site-packages\django\core\handlers\base.py" in _get_response 
    187.     response = self.process_exception_by_middleware(e, request) 

File "C:\Users\dbhol\Desktop\DojoAssignments\Python\myenvirnoments\djangoENv\lib\site-packages\django\core\handlers\base.py" in _get_response 
    185.     response = wrapped_callback(request, *callback_args, **callback_kwargs) 

File "C:\Users\dbhol\Desktop\DojoAssignments\Python\myenvirnoments\project7\ningagold\apps\ninjagold\views.py" in building 
    47. if request.POST["building"] == "farm": 

File "C:\Users\dbhol\Desktop\DojoAssignments\Python\myenvirnoments\djangoENv\lib\site-packages\django\utils\datastructures.py" in __getitem__ 
    85.    raise MultiValueDictKeyError(repr(key)) 

Exception Type: MultiValueDictKeyError at /farm 
Exception Value: "'building'"

HTML

<!DOCTYPE html> 
<html> 
<head> 
    <title></title> 
    <meta charset="utf-8"> 
    <script type="text/javascript" src='http://code.jquery.com/jquery-1.10.2.min.js'></script> 
    <script> 
    </script> 

</head> 
<body> 
<div><P>Farm</P><form action="/farm" method="post"> 
    {% csrf_token %} 
    <input type="hidden" name="building" value="farm" /> 
    <input type="submit" value="Find Gold!"/> 
</form> </div> 
<div><p>Cave</p><form action="/farm" method="post"> 
    {% csrf_token %} 
    <input type="hidden" name="building" value="cave" /> 
    <input type="submit" value="Find Gold!"/> 
</form> </div> 
<div><p>House</p><form action="/farm" method="post"> 
    {% csrf_token %} 
    <input type="hidden" name="building" value="house" /> 
    <input type="submit" value="Find Gold!"/> 
</form> </div> 
<div><p>Casino</p><form action="/farm" method="post"> 
    {% csrf_token %} 
    <input type="hidden" name="building" value="casino" /> 
    <input type="submit" value="Find Gold!"/> 
</form> </div> 
<div><p> 
</p></div> 
</form> 
</body> 
</html>

views.py

from django.shortcuts import render, redirect, HttpResponse 
import random 
import string 

def index(request): 
    return render(request, 'ninjagold/index.html') 

def building(request): 
    if request.method == ['POST']: 
     try: 
      request.session['farmprint'] += "" 
     except Exception: 
      request.session['farmprint'] = "" 
     try: 
      request.session['caveprint'] += "" 
     except Exception: 
      request.session['caveprint'] = "" 
     try: 
      request.session['houseprint'] += "" 
     except Exception: 
      request.session['houseprint'] = "" 
     try: 
      request.session['casinoprint'] += "" 
     except Exception: 
      request.session['casinoprint'] = "" 
    request.session['farm'] = 0 
    request.session['cave'] = 0 
    request.session['house'] = 0 
    request.session['casino'] = 0 
    if 'gold' not in request.session: 
     request.session['gold'] = 0 
    if request.POST["building"] == "farm": 
     request.session['farm'] = random.randint(10, 20) 
     print request.session['farm'] 
    elif request.POST["building"] == "cave": 
     request.session['cave'] = random.randint(5, 10) 
     print request.session['cave'] 
    elif request.POST["building"] == "house": 
     request.session['house'] = random.randint(2, 5) 
     print request.session['house'] 
    elif request.POST["building"] == "casino": 
     request.session['casino'] = random.randint(-50, 50) 
     print request.session['casino'] 
    if request.POST["building"] == "farm": 
     request.session['farmprint'] += 'Earned' +str(request.session['farm']) + 'golds from the farm!\n' 

    if request.POST["building"] == "cave": 
     request.session['farmprint'] += "Earned" +str(request.session['cave']) + 'golds from the cave!\n'  
    if request.POST["building"] == "house": 
     sessrequest.sessionion['farmprint'] += "Earned" +str(request.session['house']) + 'golds from the house\n' 
    if request.POST["building"] == "casino": 
     if request.session['casino'] > 0: 
      request.session['farmprint'] += "Earned" +str(request.session['casino']) + 'golds from the casino\n'  
    if request.POST["building"] == "casino": 
     if request.session['casino'] < 0: 
      request.session['farmprint'] += "Earned" +str(request.session['casino']) + 'golds from the casino\n'  
     return render(request.session, 'ninjagold/index.html') 
    else: 
     return render(request.session, 'ninjagold/index.html')

urls.py

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

urlpatterns = [ 
    url(r'^$', views.index), 
    url(r'^farm$', views.building) 
]

来源

2017-03-16 David Hollenbeck

尝试：

if request.POST.get("building", False) == "farm":

来源

2017-03-16 14:52:12

，修复了错误给了我这些TY以上，但生病的工作。很快，因为它让我检查t gren –

你可以接受答案然后... :) –

MultiValueDictKeyError at/django

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