flask login mysql_Flask连接mysql，实现页面登录

主要代码：

from flask import Flask,request,g,session,flash,redirect,url_for,render_template

from flask_sqlalchemy import SQLAlchemy

app = Flask(__name__)

app.config[‘SQLALCHEMY_DATABASE_URI‘] = ‘mysql+pymysql://root:12345678@localhost/mydb‘

app.config[‘SQLALCHEMY_COMMIT_ON_TEARDOWN‘] = True

app.config[‘SQLALCHEMY_TRACK_MODIFICATIONS‘] = False

db = SQLAlchemy(app)

class User(db.Model):

class User(db.Model):

__tablename__ = ‘user‘

id = db.Column(db.Integer, primary_key=True, autoincrement=True, nullable=False)

name = db.Column(db.String(20), nullable=False)

password = db.Column(db.String(30), nullable=False)

def __repr__(self):

return ‘User:%s‘%self.name

db.create_all()

@app.route(‘/login‘,methods=[‘POST‘,‘GET‘])

def logi