环境：python2.7+flask+flask_wtf
内容：flask的部分常用表单标签
test.py
# -*- coding: utf-8 -*- # flask web_form 表单控件 import flask from flask_wtf import FlaskForm from wtforms import * from wtforms.fields import (StringField, PasswordField, DateField, BooleanField, SelectField, SelectMultipleField, TextAreaField, RadioField, IntegerField, DecimalField, SubmitField) from wtforms.validators import DataRequired, Length, Email, EqualTo, NumberRange from flask_wtf.file import FileField, FileRequired, FileAllowed from flask import Flask, render_template, redirect app = Flask(__name__) #from flask_uploads import UploadSet, configure_uploads, IMAGES, patch_request_class import os from os import path d = path.dirname(__file__) ###保护字段 app.config['SECRET_KEY'] = 'a random string' ''' app.config['UPLOADED_PHOTOS_DEST'] = os.getcwd() photos = UploadSet('photos', IMAGES) configure_uploads(app, photos) patch_request_class(app) ''' ###定义表单 class NewsForm(FlaskForm): # Text Field类型，文本输入框，必填，用户名长度为4到25之间 username = StringField('Username', validators=[Length(min=4, max=25)]) # Text Field类型，文本输入框，Email格式 email = StringField('Email Address', validators=[Email()]) # Text Field类型，密码输入框，必填，必须同confirm字段一致 password = PasswordField('Password', [ DataRequired(), EqualTo('confirm', message='Passwords must match') ]) # Text Field类型，密码输入框 confirm = PasswordField('Repeat Password') id = HiddenField('id', default='123') image = FileField(validators=[ FileRequired('no files'), FileAllowed(['jpg', 'png'], 'Images only!') ]) # Text Field类型，文本输入框，必须输入整型数值，范围在16到70之间 age = IntegerField('Age', validators=[NumberRange(min=16, max=70)]) # Text Field类型，文本输入框，必须输入数值，显示时保留一位小数 height = DecimalField('Height (Centimeter)', places=1) # Text Field类型，文本输入框，必须输入是"年-月-日"格式的日期 birthday = DateField('Birthday', format='%Y-%m-%d') # Radio Box类型，单选框，choices里的内容会在ul标签里，里面每个项是(值，显示名)对 gender = RadioField('Gender', choices=[('m', 'Male'), ('f', 'Female')],validators=[DataRequired()]) # Select类型，下拉单选框，choices里的内容会在Option里，里面每个项是(值，显示名)对 job = SelectField('Job', choices=[ ('teacher', 'Teacher'), ('doctor', 'Doctor'), ('engineer', 'Engineer'), ('lawyer', 'Lawyer') ]) # Select类型，多选框，choices里的内容会在Option里，里面每个项是(值，显示名)对 hobby = SelectMultipleField('Hobby', choices=[ ('swim', 'Swimming'), ('skate', 'Skating'), ('hike', 'Hiking') ]) # Text Area类型，段落输入框 description = TextAreaField('Introduction of yourself') # Checkbox类型，加上default='checked'即默认是选上的 accept_terms = BooleanField('I accept the Terms of Use', default='checked', validators=[DataRequired()]) # Submit按钮 submit = SubmitField('Register') ###控制器 @app.route('/test/news_form', methods=['GET','POST']) def NewsFormViews(): form = NewsForm() if flask.request.method == "GET": return render_template('news_form.html',form=form) else: #print form.image.data if form.validate_on_submit(): if form.id.data: print form.id.data if form.image.data: filename = form.image.data.filename form.image.data.save(path.join(d,filename)) return redirect('/test/news_form') else: print form.errors ###把错误信息返回到页面 return render_template('news_form.html',form=form,error=form.errors) if __name__ == '__main__': app.run(host='127.0.0.1',port='8888', debug=False)