使用django上传文件(uploading a file using django)

 我正在使用django开发一个用于在服务器上上传文件的应用程序。 我已经在forms.py和models.py文件中分别定义了一个表单和模型，如下所示（分别）： 
 
from django import forms

class DocumentForm(forms.Form):
    docfile = forms.FileField(
        label=''
    )
 
 并在models.py中： 
 
from django.db import models

# Create your models here.

    class Document(models.Model):
        docfile = models.FileField(upload_to='targetdir')
 
 在我的HTML文件中，我的表单是： 
 
    <form  class="myclass" action="submit" method="post">
    {% csrf_token %}

    <p>
                {{ form.docfile.errors }}
                {{ form.docfile }}
</p>


        <br />
            <input font-size="50px" style="zoom:1.5"  class="myclass" dir="rtl" type="submit" value="upload"  id="button" class="top-menu" onclick="pythonhandler()" />
 
 现在，每当我提交表格，我想通过以下代码在服务器上接收我上传的文件时，我得到了“ 
 
raise MultiValueDictKeyError(repr(key))
MultiValueDictKeyError: "'docfile'""
 
 错误。 我的views.py文件： 
 
def pythonhandler(request):

    if request.method == 'POST':
        try:
                    data = request.FILES.get('docfile') 
                    with open(os.getcwd()+'/mydirectory/'+request.FILES['docfile'].name, 'wb+') as destination:
                        for chunk in request.FILES['docfile'].chunks():
                            destination.write(chunk)
 
 我在这个 ， 这个和这个问题中做了上述步骤，但我又收到了这个错误！ 

I am developing an application with django for uploading a file on the server. I have defined a form and a model in forms.py and models.py files separately as below(respectively):
 
from django import forms

class DocumentForm(forms.Form):
    docfile = forms.FileField(
        label=''
    )
 
and in models.py:
 
from django.db import models

# Create your models here.

    class Document(models.Model):
        docfile = models.FileField(upload_to='targetdir')
 
in my HTML file and my form is:
 
    <form  class="myclass" action="submit" method="post">
    {% csrf_token %}

    <p>
                {{ form.docfile.errors }}
                {{ form.docfile }}
</p>


        <br />
            <input font-size="50px" style="zoom:1.5"  class="myclass" dir="rtl" type="submit" value="upload"  id="button" class="top-menu" onclick="pythonhandler()" />
 
now, whenever I submit my form and I wanna to receive my uploaded file on the server via below codes, I got " 
 
raise MultiValueDictKeyError(repr(key))
MultiValueDictKeyError: "'docfile'""
 
error. my views.py file:
 
def pythonhandler(request):

    if request.method == 'POST':
        try:
                    data = request.FILES.get('docfile') 
                    with open(os.getcwd()+'/mydirectory/'+request.FILES['docfile'].name, 'wb+') as destination:
                        for chunk in request.FILES['docfile'].chunks():
                            destination.write(chunk)
 
I did the mentioned steps in this , this and this question, but I receive this error again!

原文：https://stackoverflow.com/questions/43762485