Flask框架报：AttributeError: 'LoginForm' object has no attribute 'validate_on_submit'

错误例子：

forms.py文件

from flask_wtf import Form
from wtforms import StringField, BooleanField, validators
from wtforms.validators import DataRequired

class LoginForm(Form):
    openid = StringField('openid', validators=[DataRequired()])
    remember_me = BooleanField('remember_me', default=False)

正确的例子：

forms.py文件

from flask_wtf import FlaskForm
from wtforms import StringField, BooleanField, validators
from wtforms.validators import DataRequired

class LoginForm(FlaskForm):
    openid = StringField('openid', validators=[DataRequired()])
    remember_me = BooleanField('remember_me', default=False)

解决问题。

具体是Form  还是 FlaskForm根据自己的项目情况版本来决定

这里注意下：from flask_wtf import FlaskForm,validators里是DataRequired，如果是from flask_wtf import Form 就对应是 Required了