Django 之 下载文件

法I：

views.py

#encoding:utf-8
import os

from django.core.servers.basehttp import FileWrapper
from django.http import HttpResponse

path = '/tmp/'
def downloader(request):
    filename_tmp = 'test.tmp'   # test.tmp为将要被下载的文件名
    filename = os.path.join(path,filename_tmp)
    wrapper = FileWrapper(file(filename))
    response = HttpResponse(wrapper, content_type='text/plain')
    response['Content-Length'] = os.path.getsize(filename)
    response['Content-Disposition'] = 'attachment; filename="somefilename.csv"'    # somefilename.csv为下载后的文件名
    return response

法II：

test.html

<a href="download/file/">下载</a>

 urls.py

url(r'^download/file/$', 'xxx.views.download'),    # xxx为项目名

xxx中的views.py

import os
from django.http import HttpResponse
from django.contrib.auth.decorators import login_required

@login_required
def download(request):
    response = HttpResponse()
    response['Content-Disposition'] = 'attachment;filename=downfile.txt'    # downfile.txt为下载后的文件名
    full_path = os.path.join('/tmp', 'filename.txt')    # filename.txt为将要被下载的文件名
    if os.path.exists(full_path):
        response['Content-Length'] = os.path.getsize(full_path)    #  可不加
        content = open(full_path, 'rb').read()
        response.write(content)
        return response
    else:
        return HttpResponse(u'文件未找到')

法III：

test.html

<a href="download/downfile.txt">下载</a>

urls.py

 1 url(r'^download/(?P.*)$', 'django.views.static.serve',{'document_root':文件路径}),