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Use bootstrap to create a login registration page and implement form verification function
- 青灯夜游forward
- 2020-12-03 17:54:156131browse
This article will introduce to you how to use bootstrap to create a login registration page and implement the single verification function. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.
Use bootstrap for login registration page, use validate for form verification
Technology: bootstrap, font-awesome, jquery-validate;
Features: Responsive layout, form verification (whether the user's two passwords are the same, whether the required information is filled in) The background image adapts to the screen size;
Purpose: Learn knowledge from actual combat.
Personal homepage: http://www.itit123.cn/ More useful information is waiting for you (Introduction Tutorial on WeChat Mini Program: Introductory Tutorial Series, providing free api interface, no need to consider server-side code issues) .
Verification code implementation function ITDragon blog
Rendering:
html code:
The import of third-party resources is introduced using cdn; of course, you can also download it yourself and import it locally.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>bootstrap案例</title>
<!--用百度的静态资源库的cdn安装bootstrap环境-->
<!-- Bootstrap 核心 CSS 文件 -->
<link href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet">
<!--font-awesome 核心我CSS 文件-->
<link href="//cdn.bootcss.com/font-awesome/4.3.0/css/font-awesome.min.css" rel="stylesheet">
<!-- 在bootstrap.min.js 之前引入 -->
<script src="http://apps.bdimg.com/libs/jquery/2.0.0/jquery.min.js"></script>
<!-- Bootstrap 核心 JavaScript 文件 -->
<script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<!--jquery.validate-->
<script type="text/javascript" src="js/jquery.validate.min.js" ></script>
<script type="text/javascript" src="js/message.js" ></script>
<style type="text/css">
body{background: url(img/4.jpg) no-repeat;background-size:cover;font-size: 16px;}
.form{background: rgba(255,255,255,0.2);width:400px;margin:100px auto;}
#login_form{display: block;}
#register_form{display: none;}
.fa{display: inline-block;top: 27px;left: 6px;position: relative;color: #ccc;}
input[type="text"],input[type="password"]{padding-left:26px;}
.checkbox{padding-left:21px;}
</style>
</head>
<body>
<!--
基础知识：
网格系统:通过行和列布局
行必须放在container内
手机用col-xs-*
平板用col-sm-*
笔记本或普通台式电脑用col-md-*
大型设备台式电脑用col-lg-*
为了兼容多个设备，可以用多个col-*-*来控制；
-->
<p class="container">
<p class="form row">
<form class="form-horizontal col-sm-offset-3 col-md-offset-3" id="login_form">
<h3 class="form-title">Login to your account</h3>
<p class="col-sm-9 col-md-9">
<p class="form-group">
<i class="fa fa-user fa-lg"></i>
<input class="form-control required" type="text" placeholder="Username" name="username" autofocus="autofocus" maxlength="20"/>
</p>
<p class="form-group">
<i class="fa fa-lock fa-lg"></i>
<input class="form-control required" type="password" placeholder="Password" name="password" maxlength="8"/>
</p>
<p class="form-group">
<label class="checkbox">
<input type="checkbox" name="remember" value="1"/> Remember me
</label>
<hr />
<a href="javascript:;" id="register_btn" class="">Create an account</a>
</p>
<p class="form-group">
<input type="submit" class="btn btn-success pull-right" value="Login "/>
</p>
</p>
</form>
</p>
<p class="form row">
<form class="form-horizontal col-sm-offset-3 col-md-offset-3" id="register_form">
<h3 class="form-title">Login to your account</h3>
<p class="col-sm-9 col-md-9">
<p class="form-group">
<i class="fa fa-user fa-lg"></i>
<input class="form-control required" type="text" placeholder="Username" name="username" autofocus="autofocus"/>
</p>
<p class="form-group">
<i class="fa fa-lock fa-lg"></i>
<input class="form-control required" type="password" placeholder="Password" id="register_password" name="password"/>
</p>
<p class="form-group">
<i class="fa fa-check fa-lg"></i>
<input class="form-control required" type="password" placeholder="Re-type Your Password" name="rpassword"/>
</p>
<p class="form-group">
<i class="fa fa-envelope fa-lg"></i>
<input class="form-control eamil" type="text" placeholder="Email" name="email"/>
</p>
<p class="form-group">
<input type="submit" class="btn btn-success pull-right" value="Sign Up "/>
<input type="submit" class="btn btn-info pull-left" id="back_btn" value="Back"/>
</p>
</p>
</form>
</p>
</p>
<script type="text/javascript" src="js/main.js" ></script>
</body>
</html>js code:
There may be unreasonable methods. After all, the author's ability is limited. If there is a better method, please leave a message and I will modify it in time.
$().ready(function() {
$("#login_form").validate({
rules: {
username: "required",
password: {
required: true,
minlength: 5
},
},
messages: {
username: "请输入姓名",
password: {
required: "请输入密码",
minlength: jQuery.format("密码不能小于{0}个字 符")
},
}
});
$("#register_form").validate({
rules: {
username: "required",
password: {
required: true,
minlength: 5
},
rpassword: {
equalTo: "#register_password"
},
email: {
required: true,
email: true
}
},
messages: {
username: "请输入姓名",
password: {
required: "请输入密码",
minlength: jQuery.format("密码不能小于{0}个字 符")
},
rpassword: {
equalTo: "两次密码不一样"
},
email: {
required: "请输入邮箱",
email: "请输入有效邮箱"
}
}
});
});
$(function() {
$("#register_btn").click(function() {
$("#register_form").css("display", "block");
$("#login_form").css("display", "none");
});
$("#back_btn").click(function() {
$("#register_form").css("display", "none");
$("#login_form").css("display", "block");
});
});Resource download address: http://download.csdn.net/detail/qq_19558705/9358603
Now let’s talk about the knowledge points used:
①bootstrap Layout:
bootstrap uses grid layout, using col-*-*
Conditions of use: It must be used under .container and .row. The structure is as follows:
<p class="container">
<p class="row">
<p class="col-*-*"></p>
<p class="col-*-*"></p>
</p>
<p class="row">...</p>
</p> Reference value:
col-xs-*: less than 768px, mobile phone
col-sm-*: greater than 768px, tablet
col-md-*: greater than 998px, Ordinary computers, laptops, etc.
col-lg-*: larger than 1200px, generally large desktop computers
can be used simultaneously to achieve the effect across multiple devices
Offset :col-*-offset-*
②Form:
The form here is not much different from the ordinary form, so I won’t say more.
③Usage of font-awesome:
is using version 4.3.0, usage method
<i class="fa fa-check fa-lg"></i>
fa-lg indicates large image
More icons Reference: http://fontawesome.dashgame.com/
④jquery-validate form verification:
This is the key point I want to talk about,
The first step : First, import jquery-validate third-party resources,
Second step: Create the form form, initialize validate
$("#login_form").validate({
rules: {
username: "required",
password: {
required: true,
minlength: 5
},
},
messages: {
username: "请输入姓名",
password: {
required: "请输入密码",
minlength: jQuery.format("密码不能小于{0}个字 符")
},
}
});Note that the login_form here must be the selector on the form form, because the author Set it on p, and the console shows an error that settings are not defined. The username and password here are both name values in the form; rules are the rules, and message is the prompted information
required:true indicates that the field is required,
minlength indicates that the length is at least 5. maxlength is supported by html5, so there is no need to set it here.
equalTo means the same as XX, followed by the first value, "#id" or ".class"
# The corresponding content in ##message is followed by the text information of the prompt. You can copy my code directly and modify it according to your needs. ⑤Background adaptive screen size: I was looking for documentation everywhere before I knew it, but after I knew it, I found it is very simple, that is, background-size:cover; This can achieve the background image and browser The size is the same. It's very simple. bootstrap creates login registration page github download address: https://github.com/ITDragonBlog/daydayup/blob/master/bootstrapI think learning in practice The effect is much better than blind learning. Knowing what this knowledge can do solves the problem of why you learn this knowledge. I sum up, you come and learn, let’s pretend and fly together. If you have any questions or suggestions, please leave a message and I will revise it in time. If reproduced, please indicate source. For more programming-related knowledge, please visit:Programming Learning Website! !
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