完成注册功能
Posted yishhaoo
tags:
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- js文件: onclick函数return True时才提交表单,return False时不提交表单。
js代码:
function fnRegist() { var oUpass = document.getElementById("upass").value; var oUpass1 = document.getElementById("upass1").value; var oUname = document.getElementById("uname"); var oError = document.getElementById("error_box"); var isError = true; if (oUname.value.length > 20 || oUname.value.length < 6) { oError.innerhtml = "用户名请输入6-20位字符"; isError = false; return isError; }else if((oUname.value.charCodeAt(0)>=48) && (oUname.value.charCodeAt(0)<=57)){ oError.innerHTML = "首字符必须为字母"; isError = false; return isError; }else { for (var i = 0; i < oUname.value.length; i++) { if ((oUname.value.charCodeAt(i) < 48) || (oUname.value.charCodeAt(i) > 57) && (oUname.value.charCodeAt(i) < 97) || (oUname.value.charCodeAt(i) > 122)) { oError.innerHTML = "必须为字母跟数字组成"; isError = false; return isError; } } } if (oUpass.length > 20 || oUpass.length < 6) { oError.innerHTML = "密码请输入6-20位字符" isError = false; return isError; } if (oUpass != oUpass1) { document.getElementById("error_box").innerHTML = "两次密码输入不一致"; isError = false; return isError; } return isError; }
- html文件:
- <form>中设置 action和method="post"
- <input> 中设置 name
html代码:
{% extends‘myweb.html‘ %} {% block registtitle %}注册页面{% endblock %} {% block registhead %} <link rel="stylesheet" type="text/css" href="../static/css/component.css"/> <script src="../static/js/regist.js"></script> {% endblock %} {% block registbody %} <div class="logo_box"> <h3 style="text-align: center">欢迎你</h3> <form action="{{ url_for(‘regist‘) }}" method="post" > <div class="input_outer"> <span class="u_user"></span> <input id="uname" class="text" style="color: wheat" type="text" placeholder="请输入账号" name="username"> </div> <div class="input_outer"> <span class="u_user"></span> <input id="unickname" class="text" style="color: wheat" type="text" placeholder="请输入昵称" name="nickname"> </div> <div class="input_outer"> <span class="us_uer"></span> <input id="upass" class="text" style="color:wheat ; position:absolute; z-index:100;" value="" type="password" placeholder="请输入密码" name="password"> </div> <div class="input_outer"> <span class="us_uer"></span> <input id="upass1" class="text" style="color:wheat ; position:absolute; z-index:100;" value="" type="password" placeholder="请再次输入密码"> </div> <div class="errorText" id="error_box" style="color: red"><br></div> <div> <button class="lb1" style="color:black" type="submit" onclick="return fnRegist()">注册</button> </div> </form> </div> {% endblock %}
- 主py文件中:
- from flask import request, redirect, url_for
- @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
py代码:
from flask import Flask, render_template,url_for,redirect,request
from flask_sqlalchemy import SQLAlchemy
import config
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(20))
@app.route(‘/‘)
def myweb():
return render_template("myweb.html")
@app.route(‘/login/‘)
def login():
return render_template("login.html")
@app.route(‘/regist/‘,methods=[‘GET‘,‘POST‘])
def regist():
if request.method==‘GET‘:
return render_template("regist.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 ‘ 用户名已存在‘
else:
user = User(username=username, password=password,nickname=nickname)
db.session.add(user)#数据库,添加操作
db.session.commit()
return redirect(url_for(‘login‘))
@app.route(‘/question/‘)
def question():
return render_template("question.html")
if __name__ == ‘__main__‘:
app.run(debug=True)
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