asyncgridfs 介绍
Tornado 非阻塞的 MongoDB GridFS 开发库
示例代码：
import asyncmongo
import tornado.web
from asyncgridfs import GridFS
class Handler(tornado.web.RequestHandler):
@property
def db(self):
if not hasattr(self, '_db'):
self._db = asyncmongo.Client(pool_id='mydb', host='127.0.0.1', port=27017, maxcached=10, maxconnections=50, dbname='test')
return self._db
@tornado.web.asynchronous
def get(self):
fid = self.get_argument('fid')
fs = GridFS(self.db)
fs.get(ObjectId(fid),callback=self._on_get)
@tornado.web.asynchronous
def post(self):
f = self.request.files['imgFile'][0]
content = f.pop('body')
content_type = f.pop('content_type')
filename = f.pop('filename')
fs = GridFS(self.db)
fs.put(content, contentType=content_type, filename=filename, callback=self._on_post)
def _on_get(self, fileobj):
self.set_header('Content-Type', fileobj['contentType'])
self.write(fileobj['data'])
self.finish()
def _on_put(self, _id):
self.write(str(_id))
self.finish()