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。
from flask import  Flask
from  flask_sqlalchemy import SQLAlchemy
import config

app = Flask(__name__)
app.config.from_object(config)
db = SQLAlchemy(app)


from flask import Flask,render_template,request,redirect,url_for
app = Flask(__name__)


# 创建用户模型：
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(20))

@app.route('/')
def base():
    return render_template('base.html')
@app.route('/denglu/')
def denglu():
    return render_template('denglu.html')

# @app.route('/zhuce/')
# def zhuce():
#     return render_template('zhuce.html')

@app.route('/zhuce/',methods=['GET','POST'])
def zhuce():
    if request.method == ' GET':
        return render_template ('zhuce.html')
    else:
         username = request.form.get('username')
         password = request.form.get('password')
         nickname = request.form.get('nickname')
         # 获取form的数据，判断用户名是否存在
         # 存到数据库中
         user = User.query.filter(User.username == username).first()
    if user:
            return u'username existed'
    else :
            user = User(username = username , password = password , nickname = nickname)
            db.session.add(user)
            db.session.commit()
            return redirect(url_for('denglu'))


@app.route('/wenda/')
def wenda():
    return  render_template('wenda.html')


if __name__ == '__main__':
    # app.run()
    app.run(debug=True)

html文件：

  1. <form>中设置 action和method="post"
  2. <input> 中设置 name
{% extends'base.html' %}

{% block title %}
注册
{% endblock %}

{% block head %}
    <link rel="stylesheet" type="text/css" href="../static/css/styles.css">
    <script src="../static/js/zhuce.js"></script>
{% endblock %}

{% block main %}
    <body class="body">
    <div class="box">
        <h2 class="ziti">注册</h2>
        <form action="{{ url_for('zhuce')}}" method="post">
        <div class="input_box">
            <input id="uname" type="text" placeholder="你的用户名" name="username">
            <input id="unickname" type="text" placeholder="昵称" name="unickname">
        </div>
        <div class="input_box">
            <input id="upass" type="password" placeholder="设置密码" name="password">
            <input id="upass1" type="password" placeholder="再次输入密码">
        </div>
        <div id="error_box"><br></div>
        <div class="input_box">
            <button  onclick="fnRegist()">注册</button>
        </div>
        </form>
    </div>
</body>
{% endblock %}
  1. 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

        存到数据库中

        redirect重定向到登录页

 

from flask import  Flask
from  flask_sqlalchemy import SQLAlchemy
import config

app = Flask(__name__)
app.config.from_object(config)
db = SQLAlchemy(app)


from flask import Flask,render_template,request,redirect,url_for
app = Flask(__name__)


# 创建用户模型：
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(20))

@app.route('/')
def base():
    return render_template('base.html')
@app.route('/denglu/')
def denglu():
    return render_template('denglu.html')

# @app.route('/zhuce/')
# def zhuce():
#     return render_template('zhuce.html')

@app.route('/zhuce/',methods=['GET','POST'])
def zhuce():
    if request.method == ' GET':
        return render_template ('zhuce.html')
    else:
         username = request.form.get('username')
         password = request.form.get('password')
         nickname = request.form.get('nickname')
         # 获取form的数据，判断用户名是否存在
         # 存到数据库中
         user = User.query.filter(User.username == username).first()
    if user:
            return u'username existed'
    else :
            user = User(username = username , password = password , nickname = nickname)
            db.session.add(user)
            db.session.commit()
            return redirect(url_for('denglu'))


@app.route('/wenda/')
def wenda():
    return  render_template('wenda.html')


if __name__ == '__main__':
    # app.run()
    app.run(debug=True)

 

posted @ 2017-11-17 20:27  003刘淑千  阅读(110)  评论(0)  编辑  收藏  举报