完成注册功能

  1. js文件： onclick函数return True时才提交表单，return False时不提交表单。
  2. html文件：
    1. <form>中设置 action和method="post"
    2. <input> 中设置 name
  3. 主py文件中：
    1. from flask import  request, redirect, url_for
    2. @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:存在报错

  不存在，存到数据库中

       redirect重定向到登录页

from flask import Flask,request,render_template,redirect,url_for
from flask_sqlalchemy import SQLAlchemy
import config
from functools import wraps
from  datetime import datetime

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))


#db.create_all()

#增加数据
#user=User(username = 'shanshan1',password = '111111')
#db.session.add(user)
#db.session.commit()

#查询数据
#user=User.query.filter(user.username == 'shanshan1').first()
#print(user.id,user.username,user.password)


#修改数据
#user=User.query.filter(user.username == 'shanshan3').first()
#user.password = '0000'
#db.session.commit()

#删除数据
#user=User.query.filter(user.username == 'shanshan3').first()
#db.session.delete(user)
#db.session.commit()


@app.route('/')
def index():
    return  render_template('shouye.html')
@app.route(   '/manhua')
def manhua():
    return  render_template('manhua.html')
@app.route('/login')
def login():
    return render_template('denglu.html')

@app.route("/register",methods=['GET','POST'])
def register():
    if request.method == 'GET':
        return render_template("zhuce.html")
    else:
        name = request.form.get('name')
        passw = request.form.get('password')
        user = User.query.filter(User.username == name).first()
    if user:
        return "用户名已存在！"

    else:
        user = User(username=name, password=passw)
        db.session.add(user)
        db.session.commit()
        return render_template("denglu.html")  



if __name__ == '__main__':
    app.run(debug=True)
SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:@localhost:3306/mis_db?charset=utf8'
SQLALCHEMY_TRACK_MODIFICATIONS = False

{% extends'shouye.html' %}
{% block title %}
    register
{% endblock %}
    {% block head %}
    <link rel="stylesheet"type="text/css"href="../static/css/zhuce.css">
    <script src="../static/js/zhuce.js"></script>
{% endblock %}
{% block main %}
<body>
    <div class="b1" >
        <form action="{{ url_for("register") }}" method="post">
        <div class="s1" ><h3>注册/ENROLL </h3></div>
        <div class="b2" >

            请输入账号:　<input id="name" type="text" placeholder="write down your name" name="name"><br>
            请输入密码:　<input id="password" type="password" placeholder="write down your PIN" name="password"><br>
            再输入密码:　<input id="password2" type="password" placeholder="write down your PIN" name="password2"><br>
        </div>

        <div id="error_box"><br></div>


    <div class="s2" >
         <button onclick="myLogin()">注册</button>
         <button type="button" onclick=window.alert("是否取消注册")>取消</button>
          <label for="remember_me" style="padding: 0;">Remember me?</label>
          <input type="checkbox" id="remember_me" style="position: relative; top: 3px; margin: 0; " name="remember_me"/>
          <div class="design">
              <p>Design by ss</p>
         </div>
</div>
        </form>
    </div>
 </body>
{% endblock %}

   

 

posted on 2017-11-21 17:32  104鲍珊珊  阅读(190)  评论(0)  编辑  收藏  举报

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