【django】 后台上传于下载 (通用型下载文件的 路由与下载函数)

通用路由:
     # 下载文件
    url("media/(?P<path>.*)$", file_down.FileDown.as_view())

通用下载文件函数：
    from django.utils.http import urlquote
from rest_framework.views import APIView
from django.shortcuts import render, redirect, HttpResponse
from dal import models
from django.http import JsonResponse, FileResponse, StreamingHttpResponse
import os

import xlwt

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) # C:UsersuserDesktopDownTest


class FileDown(APIView):

    def get(self, request,path):

        path = BASE_DIR + "\media\" + path.replace("/","\")
        print("path",path)
        message = {}

        file_name = path.split("\")[-1]
        print("file_name",file_name)


        file = open(path.replace(" ",""), 'rb')  # 字符串替换成文件

        # 告诉浏览器 这个是下载文件
        response = FileResponse(file)
        response['Content-Type'] = 'application/octet-stream'
        response['Content-Disposition'] = "attachment;filename={}".format(urlquote(file_name))  # 设置名字
        print(response)
        return response

通用settings配置:
LANGUAGE_CODE = 'zh-hans'

TIME_ZONE = 'Asia/Shanghai'

USE_I18N = True

USE_L10N = True

USE_TZ = True

# Internationalization
# https://docs.djangoproject.com/en/1.11/topics/i18n/

STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, 'static'),
    os.path.join(BASE_DIR, "media"),
]

# Django用户上传的都叫media文件
MEDIA_URL = "/media/"
# media配置，用户上传的文件都默认放在这个文件夹下
MEDIA_ROOT = os.path.join(BASE_DIR, "media")


REST_FRAMEWORK = {
    "DEFAULT_AUTHENTICATION_CLASSES": [],
    "DEFAULT_PERMISSION_CLASSES": [],
}

数据库设计：
class Suggestion(models.Model):
    """
     项目建议表
    """
    name = models.ForeignKey(to="UserInfo",verbose_name="建议人员")
    file = models.FileField(upload_to='suggestion/files', null=False,unique=True, blank=False,verbose_name="文件(点击下载)")
    file_name = models.CharField( max_length=50, null=False,verbose_name="文件标题")
    is_staff =models.BooleanField(verbose_name="是否紧急")
    is_staf =models.BooleanField(verbose_name="是否采用")

    def __str__(self):
        return self.file

    class Meta:
        verbose_name = "项目建议表"
        verbose_name_plural = verbose_name
        db_table = 'Suggestion'