今天写代码的时候有个需求，要下载xlsx文件到本地，浏览器直接访问路径不可以，就要单独写个方法，返回包含文件数据的响应头。

from django.http import HttpRequest,FileResponse
from django.utils.encoding import escape_uri_path
from django.template import RequestContext
from codecs import open
import os

def download(request,kwargs):
 fileurl = request.GET['fileurl']
 filename = os.path.split(fileurl)[1]
 file = open('kingWeb' +fileurl,'rb')
 response = FileResponse(file)
 response['Content-Type'] = 'application/octet-stream'
 response['Content-Disposition'] = "attachment; filename*=utf-8''{}".format(escape_uri_path(filename))
 return response
#使用 url/adm/home/download?fileurl=/upload/temp/20180706/201807062313.xlsx
#浏览器即可提示下载文件
#escape_uri_path方法是为了将中文文件名转换为url编码
#不然浏览器会读取不到文件名