- 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
1 from flask import Flask,render_template,request,redirect,url_for,session 2 from flask_sqlalchemy import SQLAlchemy 3 import config 4 5 app = Flask(__name__) 6 app.config.from_object(config) 7 db = SQLAlchemy(app) 8 9 class User(db.Model): 10 __tablename__ = 'user' 11 id = db.Column(db.Integer,primary_key=True,autoincrement=True) 12 username = db.Column(db.String(20),nullable=False) 13 password = db.Column(db.String(20),nullable=False) 14 nickname = db.Column(db.String(50)) 15 16 # user = User(username = 'misjiaojiao',password = 'misjiaojiao') 17 # db.session.add(user) 18 # db.session.commit() 19 20 # user = User.query.filter(User.username == 'misjiaojiao').first() 21 # db.session.delete(user) 22 # db.session.commit() 23 24 # user = User.query.filter(User.username == 'misjiaojiao').first() 25 # user.password='1234657' 26 # db.session.commit() 27 28 db.create_all() 29 30 @app.route('/') 31 def index(): 32 return render_template('switch切换.html') 33 34 @app.route('/login/', methods = ['GET','POST']) 35 def login(): 36 return render_template('login登录.html') 37 38 @app.route('/regist/', methods = ['GET','POST']) 39 def regist(): 40 if request.method == 'GET': 41 return render_template('regist注册.html') 42 else: 43 username = request.form.get('username') 44 password = request.form.get('password') 45 nickname = request.form.get('nickname') 46 user = User.query.filter(User.username == username).first() 47 if user: 48 return 'username existed' 49 else: 50 user = User(username = username,password = password,nickname = nickname) 51 db.session.add(user) # 数据库操作 52 db.session.commit() 53 return redirect(url_for('login')) 54 55 56 57 58 if __name__ == '__main__': 59 app.run(debug=True)
