Home  >  Article  >  Backend Development  >  Python+django实现文件下载

Python+django实现文件下载

WBOY
WBOYOriginal
2016-06-10 15:06:351411browse

(1)方法一、直接用a标签的href+数据库中文件地址,即可下载。缺点:word excel是直接弹框下载,对于image txt 等文件的下载方式是直接在新页面打开。

(2)方法二、在python后台对下载内容进项处理,返回内容直接弹出下载框。

#后台处理函数
def downloadFile(req):
  filename=basePath+req.GET['url']
  def file_iterator(file_name, chunk_size=512):
    with open(file_name) as f:
      while True:
        c = f.read(chunk_size)
        if c:
          yield c
        else:
          break
  response = StreamingHttpResponse(file_iterator(filename))
  response['Content-Type'] = 'application/octet-stream'
  response['Content-Disposition'] = 'attachment;filename="{0}"'.format(filename)
  return response

(3)前台使用函数方法

①、a标签调用函数传入路径

②、button标签调用jq方法调用后台函数

<input type='button' class='download'> 

 #下载按钮点击事件
 $("body").on("click",".download",function(){3   location.href="/downloadFile/&#63;url="+路径;
 });
Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn