我正在构建一个非常简单的应用程序，其中包括一个页面，用户提交一个邮政编码列表，然后返回一个邮政编码在原始列表的某个半径的文件.
我的问题是，我用于处理包含在views.py文件中的文件的函数无法在POST表单之后检索‘.csv’文件.请求上的文件元数据丢失，我找不到原因.更多详细信息如下:
我看到的错误:
Internal Server Error: /zip_app/
Traceback (most recent call last):
File "/home/louis/.cache/pypoetry/virtualenvs/zip-radius-app-1xSGHScf-py3.10/lib/python3.10/site-packages/django/utils/datastructures.py", line 84, in __getitem__
list_ = super().__getitem__(key)
KeyError: 'csvFile'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/louis/.cache/pypoetry/virtualenvs/zip-radius-app-1xSGHScf-py3.10/lib/python3.10/site-packages/django/core/handlers/exception.py", line 55, in inner
response = get_response(request)
File "/home/louis/.cache/pypoetry/virtualenvs/zip-radius-app-1xSGHScf-py3.10/lib/python3.10/site-packages/django/core/handlers/base.py", line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/louis/.cache/pypoetry/virtualenvs/zip-radius-app-1xSGHScf-py3.10/lib/python3.10/site-packages/django/views/decorators/csrf.py", line 65, in _view_wrapper
return view_func(request, *args, **kwargs)
File "/home/louis/Documents/github/zip_radius_tool/zip_radius_app/zip_app/views.py", line 30, in index
f = request.FILES['csvFile']
File "/home/louis/.cache/pypoetry/virtualenvs/zip-radius-app-1xSGHScf-py3.10/lib/python3.10/site-packages/django/utils/datastructures.py", line 86, in __getitem__
raise MultiValueDictKeyError(key)
django.utils.datastructures.MultiValueDictKeyError: 'csvFile'
用户提交.csv文件的索引页的HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<title>W3.CSS Template</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Lato">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<style>
body {font-family: "Lato", sans-serif}
.mySlides {display: none}
</style>
</head>
<body>
<!-- Page content -->
<div class="w3-content" style="max-width:2000px;margin-top:46px">
<!-- The Band Section -->
<div class="w3-container w3-content w3-center w3-padding-64" style="max-width:800px" id="band">
<form action="" method="post">
<input type="file" name="csvFile" accept=".csv" enctype="multipart/form-data">
<button type="submit" formmethod="post">Submit using POST</button>
</form>
</div>
<!-- End Page Content -->
</div>
</body>
</html>
和我的views.py文件(正在正确调用‘index’函数，但在‘f.quest.FILES[’csvFile‘]’上调用失败):
from django.shortcuts import render
from uszipcode import SearchEngine
import pandas as pd
from django.views.decorators.csrf import csrf_exempt
@csrf_exempt
# Create your views here.
def index(request):
context = {}
if request.method == 'POST':
d = request.POST
print(d)
f = request.FILES['csvFile']
print(type(f))
radius_results = pull_radius_zips(f)
print('checking this works to this point')
return render(request, "zip_app/index.html", context)
起初，我认为在提交表单时重定向到相同的视图可能有问题，但我发现这实际上是一件标准的事情.此外，当提交是POST时，索引视图可以正确捕获.
我还看到quest.POST正确地填充了我的测试文件的名称(‘Zip_codes.csv’)作为值，并且位于变量‘csvFile’下，因此CSV文件从请求对象中删除.
其他信息:我已为此视图禁用了CSRF令牌判断.