一，安装第三方库
$ pip3 install flask-wtf
二，例子
# validator
from flask_wtf import FlaskForm
import wtforms
from wtforms import validators
from wtforms.fields import StringField, TextAreaField, IntegerField, DecimalField, BooleanField, PasswordField, \RadioField, SelectField, FloatField, DateField, SelectMultipleField, DateTimeField
from wtforms.validators import DataRequired, InputRequired, Length, ValidationError, optional, EqualTo,NumberRange# 添加用户的校验form
class AddedForm(FlaskForm):name = StringField('name', validators=[DataRequired(message="名字不可为空"), Length(3, 50, message="名字最少三个字")])age = IntegerField(label='年龄', validators=[DataRequired(message="年龄不可为空"), NumberRange(min=18, max=120, message="年龄应在18岁以上")])class Meta:csrf = False# 添加用户
@user.route("/added/", methods=['POST'])
def user_added():# 得到post参数# name = request.form['name']# age = request.values['age']form = AddedForm(request.form)if form.validate()==False:errors = form.errorsprint(errors)return failed_response(500,"发生校验错误:"+str(errors))name = form.name.dataage = form.age.data# 返回data = {"status": "success","code": 200,"msg": "添加用户:"+name+",年龄:"+str(age)}return jsonify(data)
三，测试效果
![image]()
