Question

我想知道如何解决'MultiValueDictKeyError'下方的错误：上传5个大图像文件时会发生这种情况。它有时只会发生。取决于图像文件的大小。例如：它有时适用于小图像文件。

HTML表格

        <form enctype="multipart/form-data" action="/gallery/new/" method="post">

            <input type='hidden' name='csrfmiddlewaretoken' value='2G9xCcnqFP47Z1c9RelOamnzv8g5l7pT' />
            <p><label for="id_name">Name:</label> <input id="id_name" maxlength="256" name="name" type="text" /></p>
<p><label for="id_description">Description:</label> <textarea cols="40" id="id_description" name="description" rows="10">
</textarea></p>
            <hr/>

            <br />
            <h1>Image Form</h1>
            <div id="image_formset">
                <h3>Image 1</h3>
                <label for="image_name_1">Name:</label>
                <input id="image_name_1" maxlength="256" name="image_name_1" type="text" />
                <label for="image_description_1">Description:</label>
                <textarea id="image_description_1" name="image_description_1" rows="7"></textarea>
                <label for="image_file_one">Image file:</label>
                <input type="file" id="image_file_one" name="image_file_one" title="image"/>
                <hr/>
                <h3>Image 2</h3>
                <label for="image_name_2">Name:</label>
                <input id="image_name_2" maxlength="256" name="image_name_2" type="text" />
                <label for="image_description_2">Description:</label>
                <textarea id="image_description_2" name="image_description_2" rows="7"></textarea>
                <label for="image_file_two">Image file:</label>
                <input type="file" id="image_file_two" name="image_file_two" title="image"/>
                <hr/>
                <h3>Image 3</h3>
                <label for="image_name_3">Name:</label>
                <input id="image_name_3" maxlength="256" name="image_name_3" type="text" />
                <label for="image_description_3">Description:</label>
                <textarea id="image_description_3" name="image_description_3" rows="7"></textarea>
                <label for="image_file_three">Image file:</label>
                <input type="file" id="image_file_three" name="image_file_three" title="image"/>
                <hr/>
                <h3>Image 4</h3>
                <label for="image_name_4">Name:</label>
                <input id="image_name_4" maxlength="256" name="image_name_4" type="text" />
                <label for="image_description_4">Description:</label>
                <textarea id="image_description_4" name="image_description_4" rows="7"></textarea>
                <label for="image_file_four">Image file:</label>
                <input type="file" id="image_file_four" name="image_file_four" title="image"/>
                <hr/>
                <h3>Image 5</h3>
                <label for="image_name_5">Name:</label>
                <input id="image_name_5" maxlength="256" name="image_name_5" type="text" />
                <label for="image_description_5">Description:</label>
                <textarea id="image_description_5" name="image_description_5" rows="7"></textarea>
                <label for="image_file_five">Image file:</label>
                <input type="file" id="image_file_five" name="image_file_five" title="image"/>
                <hr/>
            </div>
            <div><input type="submit" value="Submit"/></div>
        </form>

错误日志：

MultiValueDictKeyError at /gallery/new/

"'image_file_one'"

Request Method:     POST
Request URL:    http://127.0.0.1:8000/gallery/new/
Django Version:     1.6.5
Exception Type:     MultiValueDictKeyError
Exception Value:    

"'image_file_one'"

Exception Location:     /opt/Documents/project_name/coolsite/projects/cms/django/utils/datastructures.py in __getitem__, line 301
Python Executable:  /usr/bin/python
Python Version:     2.7.6
Python Path:    

['lib',
 '/opt/Documents/project_name/coolsite/projects/cms',
 '/opt/Documents/project_name/coolsite/projects/cms/djangoappengine/lib',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webob-1.1.1',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/antlr3',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/fancy_urllib',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/ipaddr',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/yaml-3.10',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/rsa',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/pyasn1',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/pyasn1_modules',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/simplejson',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/endpoints-1.0',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/jinja2-2.6',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/protorpc-1.0',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/PyAMF-0.6.1',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/markupsafe-0.15',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webob-1.2.3',
 '/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.5.2',
 'lib',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC',
 '/Library/Python/2.7/site-packages']

Server time:    Thu, 11 Dec 2014 20:39:49 +0000

Answer 1

在settings.py

增加以下值后，它可以正常工作

FILE_UPLOAD_MAX_MEMORY_SIZE = 35000000

显然，此值适用于POST中所有文件的总大小。例如：它允许5个文件，每个文件的最大大小为7 MB。或4个文件，每个8.75 MB，依此类推。

文档：https://docs.djangoproject.com/en/dev/ref/settings/

MultiValueDictKeyError Django Google App Engine - 多个文件上传？

1 个答案: