如何使用 werkzeug 流式传输文件?
我想通过 werkzeug 流式传输一个大文件。
目前我的 wsgi 应用程序如下所示:
from werkzeug.wrappers import Request, Response
from werkzeug.wsgi import ClosingIterator, wrap_file
import os
class Streamer(object):
def __init__(self):
pass
def __call__(self, environ, start_response):
request = Request(environ)
filename = os.getcwd() + "/bigfile.xml"
try:
response = wrap_file(environ, open(filename) )
return response
except HTTPException, e:
response = e
return ClosingIterator(response(environ, start_response))
我不确定应该如何处理 返回的对象wrap_file 函数。
I want to stream a big file via werkzeug.
Currently my wsgi application looks like this:
from werkzeug.wrappers import Request, Response
from werkzeug.wsgi import ClosingIterator, wrap_file
import os
class Streamer(object):
def __init__(self):
pass
def __call__(self, environ, start_response):
request = Request(environ)
filename = os.getcwd() + "/bigfile.xml"
try:
response = wrap_file(environ, open(filename) )
return response
except HTTPException, e:
response = e
return ClosingIterator(response(environ, start_response))
I'm not sure what I should do with the object returned by the wrap_file function.
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我自己没有尝试过,但我认为以下方法会起作用。
Haven't tried myself but I think following will work.
以防万一有人还想:
1.保留文件名
2. 不带页面重定向的问题下载
Just in case one would additionally like to:
1. preserve the file name
2. issue download without page redirect