Question

尝试制作处理多个文件上传的应用并将其存储到标准位置，但我遇到了问题。提交表单时，django在/ pdfchecker /

返回＆＃34; MultiValueDictKeyError

＆＃34;＆＃39; DOCFILE＆＃39;＆＃34; ＆＃34;

forms.py

    from django import forms

class UploadPdf(forms.Form):
    docfile = forms.FileField(label='Browse')

class UploadPdfUrl(forms.Form):
    docurl = forms.URLField(label='Address')

modelys.py

    from django.db import models

class handle_UploadPdf(models.Model):
    docfile = models.FileField(upload_to='.')

views.py

def上传（请求）：

UploadPdfFormSet = formset_factory(UploadPdf, max_num=10,)


if request.method == 'POST':
    formsetFile = UploadPdfFormSet(request.POST, request.FILES)

    if formsetFile.is_valid():
        newdoc = handle_UploadPdf(docfile = request.FILES['docfile'])
        newdoc.save()

        return HttpResponse('yey')
else:
    formsetFile = UploadPdfFormSet()
    formURL = UploadPdfUrl

return render(request, 'pdfchecker/index.html', {
    'formsetFile': formsetFile, 'formURL': formURL,
    })

page_visits = int(request.COOKIES.get('page_visits', '0'))

if request.COOKIES.has_key('last_visit'):

    last_visit = request.COOKIES['last_visit']

    last_visit_time = datetime.strptime(last_visit[:-7], "%Y-%m-%d %H:%M:%S")

    if (datetime.now() - last_visit_time).seconds > 5:

        response.set_cookie('page_visits', visits+1)

        response.set_cookie('last_visit', datetime.now())
else:

    response.set_cookie('last_visit', datetime.now())

return response

HTML模板：

<div class="f_unify">
        <form class="simpleform" action="" method="post" enctype="multipart/form-data">
            {{ formsetFile.management_form }}
            {% for form in formsetFile.forms %}
                        <fieldset class="mainfieldset">
                        <legend class="outer">
                        <span class="legendtext">Check by URI</span>

                        </legend>
                        <div class="singlerow">

                        {% csrf_token %}
            {{ formURL.as_table }} 

                        <input type="submit" value="Check" />
                        </div>


            <span class="description">(<cite>http://www.egovmon.no/test.pdf</cite>)</span>
                        </fieldset>


            {% endfor %}
        </form>
                <form class="simpleform" action="." method="post" enctype="multipart/form-data">
            {{ formsetFile.management_form }}
            {% for form in formsetFile.forms %}
                        <fieldset class="mainfieldset">
                        <legend class="outer">
                        <span class="legendtext">Check by File Upload</span>
                        </legend>

                        <div class="singlerow">
            <div class="table">
                <input type="submit" value="Check" />
            <table class='no_error'>        
            {% csrf_token %}
            {{ formsetFile.as_p }}

            </table>

                        </div>

            </div>



                        </fieldset>
            {% endfor %}
            <script>
                var maxRows = 10;
                var i = 1;
                $('#add_more').click(function() {
                    if(i < maxRows) {
                    cloneMore('div.table:last', 'service' + i++);
                    }
                    else {
                        alert('You can only upload 10 files per instance')
                        }
                })

            </script>


        </form>


</div>

Settings.py：

    """
Django settings for testproject project.

For more information on this file, see
https://docs.djangoproject.com/en/1.6/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.6/ref/settings/
"""

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os
BASE_DIR = os.path.dirname(os.path.dirname(__file__))
TEMPLATE_DIRS = [os.path.join(BASE_DIR, 'templates')]


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.6/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '0o0g&$q4jeg%d#+5gu^b2x0jclifrul-3^q0e9(x_vwqdz3+x@'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

TEMPLATE_DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'pdfchecker',
    'authentication',
)

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
)

ROOT_URLCONF = 'testproject.urls'

WSGI_APPLICATION = 'testproject.wsgi.application'


# Database
# https://docs.djangoproject.com/en/1.6/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}

# Internationalization
# https://docs.djangoproject.com/en/1.6/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.6/howto/static-files/

MEDIA_ROOT = os.path.join(BASE_DIR, 'media')

MEDIA_URL = '/media/'

STATIC_URL = '/static/'

STATICFILES_DIRS =(
        os.path.join(os.path.dirname(BASE_DIR), "static"),
    )

错误：

Error:

    MultiValueDictKeyError at /pdfchecker/

"'docfile'"

Request Method:     POST
Request URL:    http://tt5.s.tingtun.no:7842/pdfchecker/
Django Version:     1.6.1
Exception Type:     MultiValueDictKeyError
Exception Value:    

"'docfile'"

Exception Location:     /usr/local/lib/python2.7/dist-packages/django/utils/datastructures.py in __getitem__, line 301
Python Executable:  /usr/bin/python
Python Version:     2.7.6
Python Path:    

['/home/student/django/1utkast/src',
 '/usr/local/lib/python2.7/dist-packages/TingtunUtils-0.1-py2.7.egg',
 '/usr/local/lib/python2.7/dist-packages/requests-2.0.1-py2.7.egg',
 '/usr/local/lib/python2.7/dist-packages/setuptools-2.0.1-py2.7.egg',
 '/usr/local/lib/python2.7/dist-packages/pip-1.4.1-py2.7.egg',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-x86_64-linux-gnu',
 '/usr/lib/python2.7/lib-tk',
 '/usr/lib/python2.7/lib-old',
 '/usr/lib/python2.7/lib-dynload',
 '/usr/local/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages/PILcompat',
 '/usr/lib/pymodules/python2.7']

Server time:    Mon, 28 Apr 2014 14:10:07 +0000

回溯：

Traceback Switch to copy-and-paste view

/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py in get_response

                        response = wrapped_callback(request, *callback_args, **callback_kwargs)

    ...
▶ Local vars
/home/student/django/1utkast/src/pdfchecker/views.py in upload

                newdoc = handle_UploadPdf(docfile = request.FILES['docfile'])

    ...
▶ Local vars
/usr/local/lib/python2.7/dist-packages/django/utils/datastructures.py in __getitem__

                raise MultiValueDictKeyError(repr(key))

    ...
▶ Local vars

Answer 1

在 views.py 中，

request.FILES['docfile']

引发 MultiValueDictKeyError，其中

if request.method == 'POST':
    formsetFile = UploadPdfFormSet(request.POST, request.FILES)

    if formsetFile.is_valid():
        newdoc = handle_UploadPdf(docfile = request.FILES['docfile'])
        newdoc.save()

        return HttpResponse('yey')

此代码片段不检查请求的文件是否包含文件“docfile”，因此它给出了 multivaluedictkeyerror。因此，如果您之前检查 'docfile' 是否在 request.FILES 中，那么它会解决错误。

if formsetFile.is_valid() and 'docfile' in request.FILES:
    newdoc = handle_UploadPdf(docfile = request.FILES['docfile'])
    newdoc.save()

因为 request.FILES['docfile'] 如果不在 request.FILES 中就不会编译

通过Django formset上传多个文件 - MultiValueDictKeyError

1 个答案: