Django中的MultiValueDictKeyError [英] MultiValueDictKeyError in Django
本文介绍了Django中的MultiValueDictKeyError的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
错误: -
Error:-
"Key 'username' not found in <QueryDict: {}>"
请求方法:GET请求URL:
Request Method: GET Request URL:
http://127.0.0.1:8000/StartPage/
Django版本:1.4异常类型:MultiValueDictKeyError异常
值:
Django Version: 1.4 Exception Type: MultiValueDictKeyError Exception Value:
Key用户名未找到
views.py
from django.shortcuts import render_to_response
from django.views.decorators.csrf import csrf_exempt
from django.template import Context, RequestContext
@csrf_exempt
def main_page(request):
return render_to_response('main_page.html')
@csrf_exempt
def Start_Page(request):
if request.method == 'POST':
print 'post', request.POST['username']
else:
print 'get', request.GET['username']
variables = RequestContext(request,{'username':request.POST['username'],
'password':request.POST['password']})
return render_to_response('Start_Page.html',variables)
urls.py
from polls.views import *
urlpatterns = patterns('',
# Examples:
url(r'^$', main_page),
url(r'^StartPage/$', Start_Page)
main_page.html
<html>
<head>
</head>
<body>
This is the body
<form method="post" action="/StartPage/">{% csrf_token %}
Username: <input type="text" name="username">
Password: <input type="password" name="password">
<input type="submit" value="Sign with password">
</form>
</body>
</html>
Start_Page.html
<html>
<head>
</head>
<body>
This is the StartPage
Entered user name == {{username}}
Entered password == {{password}}
</body>
</html>
推荐答案
当然,你没有通过用户名
作为 GET
参数,同时获取 http://127.0.0.1:8000/StartPage/
页面。
Sure, you are not passing username
as a GET
parameter while getting the http://127.0.0.1:8000/StartPage/
page.
尝试此操作并观察用户名: http://127.0.0.1:8000/StartPage?username=test
。
Try this and observe username printed: http://127.0.0.1:8000/StartPage?username=test
.
使用 get()
并避免 MultiValueDictKeyError
错误:
request.GET.get('username', '')
另请参见:
- Django request.GET
- Django - taking values from POST request
这篇关于Django中的MultiValueDictKeyError的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文