Tornado上传文件

直接上代码
# coding: utf-8
from tornado.ioloop import IOLoop
from tornado import web
import shutil
import os
import json


class FileUploadHandler(web.RequestHandler):
    def get(self):
        self.write('''
            <html>
              <head><title>Upload File</title></head>
              <body>
                <form action='/file' enctype="multipart/form-data" method='post'>
                <input type='file' name='file'/><br/>
                <input type='submit' value='submit'/>
                </form>
              </body>
            </html>
            ''')

    def post(self):
        ret = {'result': 'OK'}
        upload_path = os.path.dirname(__file__) # 文件的暂存路径
        file_metas = self.request.files.get('file', None)  # 提取表单中‘name’为‘file’的文件元数据

        if not file_metas:
            ret['result'] = 'Invalid Args'
        else:
            for meta in file_metas:
                filename = meta['filename']
                file_path = os.path.join(upload_path, filename)

                with open(file_path, 'wb') as up:
                    up.write(meta['body'])
                    # OR do other thing

        self.write(json.dumps(ret))


application = web.Application([
    (r'/file', FileUploadHandler),
    ],autoreload = True)
application.listen(8765)
IOLoop.current().start()