我正在尝试哈希文件名然后保存到DB中。我正在使用Flask和Python 3.4
这是上传代码:
@app.route('/', methods=['GET', 'POST'])
def upload_pic():
if request.method == 'POST':
file = request.files['file']
try:
extension = file.filename.rsplit('.', 1)[1].lower()
except IndexError as e:
abort(404)
if file and check_extension(extension):
# Salt and hash the file contents
filename = md5(file.read() + str(round(time.time() * 1000))).hexdigest() + '.' + extension
file.seek(0) # Move cursor back to beginning so we can write to disk
file.save(os.path.join(app.config['UPLOAD_DIR'], filename))
add_pic(filename)
gen_thumbnail(filename)
return redirect(url_for('show_pic', filename=filename))
else: # Bad file extension
abort(404)
else:
return render_template('upload.html')
当我发布表单时,我会收到此错误回溯。
Traceback (most recent call last):
File "C:\Python34\lib\site-packages\flask\app.py", line 1836, in __call__
return self.wsgi_app(environ, start_response)
File "C:\Python34\lib\site-packages\flask\app.py", line 1820, in wsgi_app
response = self.make_response(self.handle_exception(e))
File "C:\Python34\lib\site-packages\flask\app.py", line 1403, in handle_exception
reraise(exc_type, exc_value, tb)
File "C:\Python34\lib\site-packages\flask\_compat.py", line 33, in reraise
raise value
File "C:\Python34\lib\site-packages\flask\app.py", line 1817, in wsgi_app
response = self.full_dispatch_request()
File "C:\Python34\lib\site-packages\flask\app.py", line 1477, in full_dispatch_request
rv = self.handle_user_exception(e)
File "C:\Python34\lib\site-packages\flask\app.py", line 1381, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "C:\Python34\lib\site-packages\flask\_compat.py", line 33, in reraise
raise value
File "C:\Python34\lib\site-packages\flask\app.py", line 1475, in full_dispatch_request
rv = self.dispatch_request()
File "C:\Python34\lib\site-packages\flask\app.py", line 1461, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "C:\Users\Ajay\PycharmProjects\codehackr-upload\flaskgur.py", line 70, in upload_pic
filename = md5(file.read() + (round(time.time() * 1000))).hexdigest() + '.' + extension
TypeError: can't concat bytes to int
我不知道发生了什么错误,请赐教。
感谢。
答案 0 :(得分:4)
您正在尝试将file.read()
的结果与round(time.time() * 1000))
的结果连接起来,这是一个整数。这就是你收到错误的原因:
TypeError: can't concat bytes to int
尝试转换整数:
file.read() + bytes(round(time.time() * 1000)))
但正如@Lev Levitsky所注意到的,看起来您的代码已经有了更正:您确定要运行代码的最新版本吗?