Tornado 如何做文件下载
要求:浏览器输入url地址,直接弹窗提示下载
Tornado服务端,搭建文件下载服务
#!/usr/bin/env python
# -*- coding:utf-8 -*- import tornado.ioloop
import tornado.web class MainHandler(tornado.web.RequestHandler): def get(self):
filename = self.get_argument('filename')
# http头 浏览器自动识别为文件下载
self.set_header('Content-Type', 'application/octet-stream')
# 下载时显示的文件名称
self.set_header('Content-Disposition', 'attachment; filename=%s'%filename)
with open(filename, 'rb') as f:
while True:
data = f.read(1024)
if not data:
break
self.write(data)
# # 记得有finish哦
self.finish() def make_app():
return tornado.web.Application([
(r"/", MainHandler),
]) if __name__ == "__main__":
app = make_app()
app.listen(8888)
tornado.ioloop.IOLoop.current().start()
浏览器验证 输入地址http://127.0.0.1:8888/?filename=meeting_welcome.wav:
补充:之前测试,一直在浏览器页面显示的是二进制字符串,后来发现是没有在http包里面指定头部类型
下载中文文件
Tornado服务端
#!/usr/bin/env python
# -*- coding:utf-8 -*- import tornado.ioloop
import tornado.web class MainHandler(tornado.web.RequestHandler):
def get(self,*args):
filename = self.get_argument('filename')
print(filename)
self.set_header('Content-Type', 'application/octet-stream')
self.set_header('Content-Disposition', ('attachment; filename=%s'%filename).encode('utf-8')) with open(filename, 'rb') as f:
while True:
data = f.read(1024)
if not data:
break
self.write(data) def make_app():
return tornado.web.Application([
(r"/", MainHandler),
]) if __name__ == "__main__":
app = make_app()
app.listen(8888)
tornado.ioloop.IOLoop.current().start()
浏览器验证 输入地址http://127.0.0.1:8888/?filename=会.wav
Tornado 音频文件在线播放
效果入下:
代码:
#!/usr/bin/env python
# -*- coding:utf-8 -*- import os
import tornado.ioloop
import tornado.web class MainHandler(tornado.web.RequestHandler):
def get(self,filename):
self.set_header('Content-Type', 'audio/mpeg')
if os.path.exists(filename):
with open(filename, 'rb') as f:
while True:
data = f.read(1024)
if not data:
break
self.write(data)
# # 记得有finish哦
self.finish()
else:
self.send_error(404) def make_app():
return tornado.web.Application([
(r"/(.*)", MainHandler),
]) if __name__ == "__main__":
app = make_app()
app.listen(8888)
tornado.ioloop.IOLoop.current().start()
请求地址http://127.0.0.1:8888/test.mp3