- js文件: onclick函数return True时才提交表单,return False时不提交表单。
- html文件:
- <form>中设置 action和method="post"
- <input> 中设置 name
- 主py文件中:
- from flask import request, redirect, url_for
- @app.route('/regist/', methods=['GET', 'POST’])
def regist():
if request.method == 'GET':
return render_template('regist.html')
else:
username = request.form.get(‘username’)#获取form中的数据
判断用户名是否存在
存到数据库中
redirect重定向到登录页
from flask import Flask,render_template,request,redirect,url_for,session from flask_sqlalchemy import SQLAlchemy import config app = Flask(__name__) app.config.from_object(config) db = SQLAlchemy(app) class User(db.Model): __tablename__ = 'user' id = db.Column(db.Integer,primary_key=True,autoincrement=True) username = db.Column(db.String(20),nullable=False) password = db.Column(db.String(20),nullable=False) nickname = db.Column(db.String(50)) # user = User(username = 'misjiaojiao',password = 'misjiaojiao') # db.session.add(user) # db.session.commit() # user = User.query.filter(User.username == 'misjiaojiao').first() # db.session.delete(user) # db.session.commit() # user = User.query.filter(User.username == 'misjiaojiao').first() # user.password='1234657' # db.session.commit() db.create_all() @app.route('/') def index(): return render_template('switch切换.html') @app.route('/login/', methods = ['GET','POST']) def login(): return render_template('login登录.html') @app.route('/regist/', methods = ['GET','POST']) def regist(): if request.method == 'GET': return render_template('regist注册.html') else: username = request.form.get('username') password = request.form.get('password') nickname = request.form.get('nickname') user = User.query.filter(User.username == username).first() if user: return 'username existed' else: user = User(username = username,password = password,nickname = nickname) db.session.add(user) # 数据库操作 db.session.commit() return redirect(url_for('login')) if __name__ == '__main__': app.run(debug=True)