完成注册功能_注册

编程小6 (5) 2024-06-16 11:23

Hi，大家好，我是编程小6，很荣幸遇见你，我把这些年在开发过程中遇到的问题或想法写出来，今天说一说
完成注册功能_注册,希望能够帮助你!!!。

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：
1. <form>中设置 action和method="post"
2. <input> 中设置 name
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, render_template, request, redirect, url_for
from flask_sqlalchemy import SQLAlchemy
import config


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


# /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(50))


#db.create_all()
# #增加
# user =User(username = 'nini',password = '11122')
# db.session.add(user)
# db.session.commit()
#
# #查询
# user=User.query.filter(User.username =='nini').first()
# print(user.username,user.password)
#
# #删除
# user=User.query.filter(User.username =='nini').first()
# db.session.delete(user)
# db.session.commit()
#
# #修改
# user=User.query.filter(User.username =='nini').first()
# user.password=''
# db.session.commit()


# db.create_all()

# @app.route('/')

# def hello_world():
# return 'Hello World!'

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


@app.route('/register/', methods=['GET', 'POST'])
def register():
 if request.method == 'GET':
        return render_template('register.html')
 else:
 username = request.form.get('username')
 password = request.form.get('password')
 nickname = request.form.get('nickname')
 user = User.query.filter(User.username == username).first()
 if user:
 return 'username existed'
 else:
 user = User(username=username, password=password, nickname=nickname)
 db.session.add(user)
 db.session.commit()
 return redirect(url_for('login'))


@app.route('/login/', methods=['GET', 'POST'])
def login():
 if request.method=='GET':
       return render_template('login.html')
 else:
 username=request.form.get('username')
 password=request.form.get('password')
 user = User.query.filter(User.username == username).first()
 if user:
 return 'username existed'
 else:
 user = User(username=username, password=password)
 db.session.add(user)
 db.session.commit()
 return redirect(url_for('index'))


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

function fnLogin() { 
   
 var oUname = document.getElementById("uname");
 var oError = document.getElementById("error_box");
 var oUiphone = document.getElementById("uiphone");
 var oUpass = document.getElementById("upass");
 var oUpass1 = document.getElementById("upass1");

 oError.innerHTML="<br>"

 if(oUname.value.length<6 || oUname.value.length >12){ 
   
 oError.innerHTML="用户名6-12";
 return;
 }else if ((oUname.value.charCodeAt(0)>=48) && (oUname.value.charCodeAt(0)<=57)){ 
   
 oError.innerHTML="首字母不能为数字";
 return;
 }
 if(oUpass.value.length<6 || oUpass.value.length>12){ 
   
 oError.innerHTML="密码6-12位";
 return;
 }
 if (oUpass.value.length < 6 || oUpass.value.length > 20) { 
   
 oError.innerHTML = "密码要6-20位";
 isError = false;
 return isError;
 }else if(oUpass.value!=oUpass1.value) { 
   
 oError.innerHTML = "设置密码和验证密码不一致";
 isError = false;
 return isError;
 }

 window.alert("注册成功")
}

html

{% extends'index.html' %}
{% block title %}
 register
{% endblock %}
 {% block head %}
 <link rel="stylesheet" href="{ 
   { url_for('static',filename='css/register.css')}}">
 <script src="{ 
   { url_for('static',filename='js/register.js') }}"></script>
{% endblock %}
{% block main %}
<body>
<div class="box">
<h2>欢迎进入</h2>
<h3>VIP Register</h3>

<div class="input_box">
 请输入邮箱 <input id="email" type="text" placeholder="需要通过邮件激活账户"> </div><br>
 <div class="input_box">
 请输入账号　<input id="uname" type="text" placeholder="请输入你的昵称"> </div><br>
 <div class="input_box">
 请输入密码　<input id="upass" type="password" placeholder="请输入密码"></div><br>
 <div class="input_box">
 再输入密码　<input id="upass1" type="password" placeholder="第二次输入密码"></div><br>
 <div id="error_box"><br></div>
 <div class="input_box">
 <button οnclick="fnLogin()" >注册</button></div>
</div>
</body>
{% endblock %}
</html>