關於tornado檔案上傳與儲存
阿新 • • 發佈：2019-01-28
#!/usr/bin/python
#-*- encoding:utf-8 -*-
import tornado.ioloop
import tornado.web
import shutil
import os
class UploadFileHandler(tornado.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):
upload_path=os.path.join(os.path.dirname(__file__),'files') #檔案的暫存路徑(在py檔案同目錄下創一個files資料夾來儲存)
file_metas=self.request.files['file'] #提取表單中‘name’為‘file’的檔案元資料(一個檔案元包括:[{'body':' XXX', 'content_type':'XXXX', 'filename':'XXXX'}])
for meta in file_metas:
filename=meta['filename']
filepath=os.path.join(upload_path,filename)
with open(filepath,'wb') as up: #有些檔案需要已二進位制的形式儲存，實際中可以更改(注意學習with ... as 關鍵詞的用法)
up.write(meta['body'])
self.write('finished!')
app=tornado.web.Application([
(r'/file',UploadFileHandler),
])
if __name__ == '__main__':
app.listen(3000)
tornado.ioloop.IOLoop.instance().start()