MongoDB GridFS 开发库：asyncgridfs

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()

项目主页：http://www.open-open.com/lib/view/home/1402827594153