Question

在我的Django视图中，我创建了一个pdf文件，我想下载它。该文件存在（路径：/app/data/4.pdf），我启动此命令：

Float32Array

但是下载没有启动且没有错误。你有解决方案吗？感谢。

Answer 1

试试这个，我用这行来下载文件

from django.http import HttpResponse
from wsgiref.util import FileWrapper

import os

def download(request, file_path):
    """
    e.g.: file_path = '/tmp/file.pdf'
    """
    try:
        wrapper = FileWrapper(open(file_path, 'rb'))
        response = HttpResponse(wrapper, content_type='application/force-download')
        response['Content-Disposition'] = 'inline; filename=' + os.path.basename(file_path)
        return response
    except Exception as e:
        return None

Answer 2

当文件已经存在时，我使用FileResponse进行文件下载。 FileResponse自Django 1.7.4起就存在。

from django.core.files.storage import FileSystemStorage
from django.http import FileResponse

def download_line(request):
    fs = FileSystemStorage('/absolute/folder/name')
    FileResponse(fs.open('filename.pdf', 'rb'), content_type='application/force-download')
    response['Content-Disposition'] = 'attachment; filename="filename.pdf"'
    return response

Answer 3

您可以通过链接和静态方式在应用程序中下载现有文件，例如

<a href="{% static 'questions/import_files/import_questions.xlsx' %}" download>Excel Format File </a>

Answer 4

def sample_download_client_excel(request):
    """
    e.g.: file_path = '/tmp/file.pdf'
    """
    try:
        obj = SampleFile.objects.all().first()
        file_path = obj.file_name.url.strip('/') 
        wrapper = FileWrapper(open(file_path, 'rb'))
        response = HttpResponse(
            wrapper, 
            content_type='application/force-download'
        )
        response['Content-Disposition'] = 'inline; filename=' + os.path.basename(file_path)
        return response
    except Exception as e:
        return None

Django如何下载现有文件？

4 个答案: