db.py
import MySQLdb conn = MySQLdb.connect('localhost', 'root', '123456', 'test1') cur = conn.cursor() def addUser (username,password): sql="insert into user (username,password) VALUES ('%s','%s')"%(username,password) cur.execute(sql) conn.commit() conn.close() def isExisted(username,password): sql = "select * from user where username='%s' and password = '%s' " %(username,password) cur.execute(sql) result = cur.fetchall() print result if len(result)==0: return False else: return True
main.py
from flask import Flask,url_for from flask import request from flask import render_template from flask import redirect from db import * app = Flask(__name__) @app.route('/login',methods=['GET','POST']) def login(): if request.method =='POST': username=request.form.get('username') password=request.form.get('password') if isExisted(username,password): message = "login success" return render_template('index.html',message=message) else: message = "login filed" return render_template('index.html',message=message) return render_template('index.html',message="weidenglu") @app.route('/register', methods=['POST','GET']) def register(): if request.method == 'POST': username = request.form.get('username') password = request.form.get('password') print (username) addUser(username,password) return "123" return render_template('index.html') if __name__ == "__main__": app.debug = True app.run(port=7777)
html
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> </head> <body> <h1>{{ message }} index.html2</h1> <h1>login</h1> <form action="/login" method="POST"> <input type="text" name="username"> <input type="password" name="password"> <input type="submit" value="提交"> </form> </body> </html>