Question

我想创建一个Web框架工作我想上传excel文件，然后保存并下载相同的excel文件。如果相同的excel文件上传2或3次或更多，下载此文件应该用一些sumbers命名？使用下载按钮我该怎么做

我已经编写了上传代码，但我不确定如何继续下载部分可以任何人帮助

Views.py

from django.shortcuts import render
import openpyxl
import settings

def index(request):
    if "GET" == request.method:
        return render(request, 'myapp/index.html', {})
    else:
        excel_file = request.FILES["excel_file"]

        # you may put validations here to check extension or file size

        wb = openpyxl.load_workbook(excel_file)

        # getting all sheets
        sheets = wb.sheetnames
        print(sheets)

        # getting a particular sheet
        worksheet = wb["Sheet1"]
        print(worksheet)

        # getting active sheet
        active_sheet = wb.active
        print(active_sheet)

        # reading a cell
        print(worksheet["A1"].value)

        excel_data = list()
        # iterating over the rows and
        # getting value from each cell in row
        for row in worksheet.iter_rows():
            row_data = list()
            for cell in row:
                row_data.append(str(cell.value))
                print(cell.value)
            excel_data.append(row_data)

        return render(request, 'myapp/index.html', {"excel_data":excel_data})

index .html

<html>
    <head>
        <title>
            Excel file upload and processing : Django Example : ThePythonDjango.Com
        </title>
    </head>
    <body style="margin-top: 30px;margin-left: 30px;">
        <form action="{% url "myapp:index" %}" method="post" enctype="multipart/form-data">
            {% csrf_token %}
            <input type="file"
                   title="Upload excel file"
                   name="excel_file"
                   style="border: 1px solid black; padding: 5px;"
                   required="required">
            <p>
            <input type="submit"
                   value="Upload"
                   style="border: 1px solid green; padding:5px; border-radius: 2px; cursor: pointer;">
        </form>

        <p></p>
        <hr>

        {% for row in excel_data %}
            {% for cell in row %}
                {{ cell }}&nbsp;&nbsp;
            {% endfor %}
            <br>
        {% endfor %}
    </body>
</html>

urls.py

from django.contrib import admin
from django.urls import path, include

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('myapp.urls', namespace="myapp")),
]

Answer 1

当多次上传同一文件时，新文件将使用扩展编号或随机字符串命名。你可以调整它。

有两种方法可以下载文件：

将上传的文件存储在公共场所，然后使用webserver（nginx，apache）处理下载。就像你使用webserver为Django项目提供静态/媒体文件一样。这是推荐的。看看这个：Deploying static files
在django视图中，读取文件的内容，然后将其返回给客户端。不建议这样做。

在Django上传和下载excel文件

1 个答案: