web-登陆界面html-数据库 – 小飞侠

web-登陆界面html-数据库

Post author:xfxia
Post published:2023年10月18日
Post category:其他

概述

项目需要，于是花几天时间改站前端设计一个登录页面。页面设计首先通过html、css等语言完成，然后通过PHP调用后端数据库获取已授权用户信息，最后前端通过js的ajax调用php文件完成整个登录系统设计

效果实现

在这里插入图片描述

代码实现（html）

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>login</title>
	<style type="text/css">
		@import url(http://fonts.googleapis.com/css?family=Source+Sans+Pro:200,300);
		* {
		  box-sizing: border-box;
		  margin: 0;
		  padding: 0;
		  font-weight: 300;
		}
		body {
		  font-family: 'Source Sans Pro', sans-serif;
		  color: white;
		  font-weight: 300;
		}
		body ::-webkit-input-placeholder {
		  /* WebKit browsers */
		  font-family: 'Source Sans Pro', sans-serif;
		  color: white;
		  font-weight: 300;
		}
		body :-moz-placeholder {
		  /* Mozilla Firefox 4 to 18 */
		  font-family: 'Source Sans Pro', sans-serif;
		  color: white;
		  opacity: 1;
		  font-weight: 300;
		}
		body ::-moz-placeholder {
		  /* Mozilla Firefox 19+ */
		  font-family: 'Source Sans Pro', sans-serif;
		  color: white;
		  opacity: 1;
		  font-weight: 300;
		}
		body :-ms-input-placeholder {
		  /* Internet Explorer 10+ */
		  font-family: 'Source Sans Pro', sans-serif;
		  color: white;
		  font-weight: 300;
		}
		.wrapper {
		  background: #50a3a2;
		  background: -webkit-linear-gradient(top left, #50a3a2 0%, #53e3a6 100%);
		  background: linear-gradient(to bottom right, #50a3a2 0%, #53e3a6 100%);
		  position: absolute;
		  left: 0;
		  width: 100%;
		  height: 100%;
		/*  margin-top: -200px;*/
		  overflow: hidden;
		}
		.wrapper.form-success .container h1 {
		  -webkit-transform: translateY(85px);
		          transform: translateY(85px);
		}
		.container {
		  max-width: 600px;
		  margin: 0 auto;
		  padding: 80px 0;
		  padding-top:200px; 
		  height: 400px;
		  text-align: center;
		}
		.container h1 {
		  font-size: 40px;
		  -webkit-transition-duration: 1s;
		          transition-duration: 1s;
		  -webkit-transition-timing-function: ease-in-put;
		          transition-timing-function: ease-in-put;
		  font-weight: 200;
		}
		form {
		  padding: 20px 0;
		  position: relative;
		  z-index: 2;
		}
		form input {
		  -webkit-appearance: none;
		     -moz-appearance: none;
		          appearance: none;
		  outline: 0;
		  border: 1px solid rgba(255, 255, 255, 0.4);
		  background-color: rgba(255, 255, 255, 0.2);
		  width: 250px;
		  border-radius: 3px;
		  padding: 10px 15px;
		  margin: 0 auto 10px auto;
		  display: block;
		  text-align: center;
		  font-size: 18px;
		  color: white;
		  -webkit-transition-duration: 0.25s;
		          transition-duration: 0.25s;
		  font-weight: 300;
		}
		form input:hover {
		  background-color: rgba(255, 255, 255, 0.4);
		}
		form input:focus {
		  background-color: white;
		  width: 300px;
		  color: #53e3a6;
		}
		form button {
		  -webkit-appearance: none;
		     -moz-appearance: none;
		          appearance: none;
		  outline: 0;
		  background-color: white;
		  border: 0;
		  padding: 10px 15px;
		  color: #53e3a6;
		  border-radius: 3px;
		  width: 125px;
		  cursor: pointer;
		  font-size: 18px;
		  -webkit-transition-duration: 0.25s;
		          transition-duration: 0.25s;
		}
		form button:hover {
		  background-color: #f5f7f9;
		}
		.bg-bubbles {
		  position: absolute;
		  top: 0;
		  left: 0;
		  width: 100%;
		  height: 100%;
		  z-index: 1;
		}
		.bg-bubbles li {
		  position: absolute;
		  list-style: none;
		  display: block;
		  width: 40px;
		  height: 40px;
		  background-color: rgba(255, 255, 255, 0.15);
		  bottom: -160px;
		  -webkit-animation: square 25s infinite;
		  animation: square 25s infinite;
		  -webkit-transition-timing-function: linear;
		  transition-timing-function: linear;
		}
		.bg-bubbles li:nth-child(1) {
		  left: 10%;
		}
		.bg-bubbles li:nth-child(2) {
		  left: 20%;
		  width: 80px;
		  height: 80px;
		  -webkit-animation-delay: 2s;
		          animation-delay: 2s;
		  -webkit-animation-duration: 17s;
		          animation-duration: 17s;
		}
		.bg-bubbles li:nth-child(3) {
		  left: 25%;
		  -webkit-animation-delay: 4s;
		          animation-delay: 4s;
		}
		.bg-bubbles li:nth-child(4) {
		  left: 40%;
		  width: 60px;
		  height: 60px;
		  -webkit-animation-duration: 22s;
		          animation-duration: 22s;
		  background-color: rgba(255, 255, 255, 0.25);
		}
		.bg-bubbles li:nth-child(5) {
		  left: 70%;
		}
		.bg-bubbles li:nth-child(6) {
		  left: 80%;
		  width: 120px;
		  height: 120px;
		  -webkit-animation-delay: 3s;
		          animation-delay: 3s;
		  background-color: rgba(255, 255, 255, 0.2);
		}
		.bg-bubbles li:nth-child(7) {
		  left: 32%;
		  width: 160px;
		  height: 160px;
		  -webkit-animation-delay: 7s;
		          animation-delay: 7s;
		}
		.bg-bubbles li:nth-child(8) {
		  left: 55%;
		  width: 20px;
		  height: 20px;
		  -webkit-animation-delay: 15s;
		          animation-delay: 15s;
		  -webkit-animation-duration: 40s;
		          animation-duration: 40s;
		}
		.bg-bubbles li:nth-child(9) {
		  left: 25%;
		  width: 10px;
		  height: 10px;
		  -webkit-animation-delay: 2s;
		          animation-delay: 2s;
		  -webkit-animation-duration: 40s;
		          animation-duration: 40s;
		  background-color: rgba(255, 255, 255, 0.3);
		}
		.bg-bubbles li:nth-child(10) {
		  left: 90%;
		  width: 160px;
		  height: 160px;
		  -webkit-animation-delay: 11s;
		          animation-delay: 11s;
		}
		@-webkit-keyframes square {
		  0% {
		    -webkit-transform: translateY(0);
		            transform: translateY(0);
		  }
		  100% {
		    -webkit-transform: translateY(-700px) rotate(600deg);
		            transform: translateY(-700px) rotate(600deg);
		  }
		}
		@keyframes square {
		  0% {
		    -webkit-transform: translateY(0);
		            transform: translateY(0);
		  }
		  100% {
		    -webkit-transform: translateY(-700px) rotate(600deg);
		            transform: translateY(-700px) rotate(600deg);
		  }
		}
		.cc{
			text-decoration: none;
			color: #53e3a6; 
			}
	</style>
	<script type="text/javascript">
		
		 $("#login-button").click(function(event){
				 event.preventDefault();
			 
			 $('form').fadeOut(500);
			 $('.wrapper').addClass('form-success');
		});
		function check(){
	    {
		  if(form.username.value == "")//如果用户名为空
		  {
			alert("您还没有填写用户名！");
			form.username.focus();
			return false;
		  }
		  if(form.password.value == "")//如果密码为空
		  {
			alert("您还没有填写密码！");
			myform.password.focus();
			return false;
		  }
		}
		
		
	</script>
</head>
<body>
	<div class="wrapper">
		<div class="container">
			<h1>Welcome</h1>
			
			<form name='form' class="form" method='post' action='login.php' onSubmit="return check()">
				<input type="text" placeholder="Username" name='username'>
				<input type="password" placeholder="Password" name='password'>
				<button type="submit" id="login-button" name='submit' value='submit'>Login</button>
			</form>
		</div>
		
		<ul class="bg-bubbles">
			<li></li>
			<li></li>
			<li></li>
			<li></li>
			<li></li>
			<li></li>
			<li></li>
			<li></li>
			<li></li>
			<li></li>
		</ul>
	</div>
</body>
</html>

PHP文件

<?php 
$username=$_POST['username'];
$password=$_POST['password'];
$link = mysqli_connect('127.0.0.1','root','123456','vultureData');
$query=mysqli_query($link,"SELECT username,password FROM webuserinfo WHERE username = '$username'");//找到与输入用户名相同的信息，注意要取出的信息有两项
$row = mysqli_fetch_array($query);
if($_POST['submit']){    
    if($row['username']==$username &&$row['password']==$password){
        //setcookie('uname',$username,time()+7200);
        echo "<script>alert('successfully');window.location= 'index.php';</script>";
    }
    else echo "<script>alert('failed');history.go(-1)</script>";//返回之前的页面
}
include('login.html');?>

版权声明：本文为Alvin_zy原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。

原文链接：https://blog.csdn.net/Alvin_zy/article/details/103410028