代码：

from django.http import StreamingHttpResponsedef big_file_download(request):    # do something...    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    the_file_name = "big_file.pdf"    response = StreamingHttpResponse(file_iterator(the_file_name))    response['Content-Type'] = 'application/octet-stream'    response['Content-Disposition'] = 'attachment;filename="{0}"'.format(the_file_name)    return response

 

 

参考资料：

http://www.jianshu.com/p/2ce715671340

http://blog.csdn.net/martin_liang/article/details/43286539

http://zhidao.baidu.com/link?url=l2plQ2oAU0A-SJzEH-OwWsLVciU91XlQwMmn3qrXhHkY9XRDFeSv09YAfQpVKZbrmKzOSFLgtA3mGmtTTjgGzJHzMI7u9WpdozQFwxq0fNW

http://www.python88.com/topic/126/

 

推荐：

http://www.cnblogs.com/linxiyue/p/4187484.html

http://blog.sina.com.cn/s/blog_90bc5fc60102vl7m.html