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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<title>登录界面</title>
<link href="css/styles.css" rel="stylesheet" type="text/css" />
<link href="css/demo.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="js/requestAnimationFrame.js"></script>
<script type="text/javascript" src="js/jquery-2.1.1.min.js"></script>
<script type="text/javascript" src="js/Star.js"></script>
<script type="text/javascript" src="js/Particle.js"></script>
<script type="text/javascript" src="js/Smoke.js"></script>
<script type="text/javascript" src="js/jquery-ui.min.js"></script>
<script src="js/Treatment.js" type="text/javascript"></script>
<script src="js/jquery.mockjax.js" type="text/javascript"></script>
</head>
<body>
<div style="position: absolute;z-index: 1;">
<canvas id="canvas_app" class="first"></canvas>
</div>
<div class='login' style="position: absolute;z-index: 10;">
<div class='login_title'>
<span><center><h3>用户登录</h3></center></span>
</div>
<div class='login_fields'>
<div class='login_fields__user'>
<div class='icon'>
<img alt="" src='img/user_icon_copy.png'>
</div>
<input name="username" id="username" placeholder='用户名' maxlength="16" type='text' autocomplete="off"/>
<div class='validation'>
<img alt="" src='img/tick.png'>
</div>
</div>
<div class='login_fields__password'>
<div class='icon'>
<img alt="" src='img/lock_icon_copy.png'>
</div>
<input name="password" id="password" placeholder='密码' maxlength="16" type='text' autocomplete="off">
<div class='validation'>
<img alt="" src='img/tick.png'>
</div>
</div>
<div class='login_fields__password'>
<div class='icon'>
<img alt="" src='img/key.png'>
</div>
<input name="code" id="code" placeholder='验证码' maxlength="4" type='text' name="ValidateNum" autocomplete="off">
<div class='validation' style="opacity: 1; right: -5px;top: -3px;">
<canvas class="J_codeimg" id="myCanvas" onclick="Code();">对不起，您的浏览器不支持canvas，请下载最新版浏览器!</canvas>
</div>
</div>
<div class='login_fields__submit'>
<input type='button' onClick="checkCode()" value='登录'>
</div>
</div>
</div>
<script type="text/javascript">
var canGetCookie = 0;//是否支持存储Cookie 0 不支持 1 支持
//默认账号密码
var CodeVal = 0;
Code();
function Code() {
if(canGetCookie == 1){
createCode("AdminCode");
var AdminCode = getCookieValue("AdminCode");
showCheck(AdminCode);
}
else{
showCheck(createCode(""));
}
}
function showCheck(a) {
CodeVal = a;
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.clearRect(0, 0, 1000, 1000);
ctx.font = "80px 'Hiragino Sans GB'";
ctx.fillStyle = "#E8DFE8";
ctx.fillText(a, 0, 100);
}
$(document).keypress(function (e) {
// 回车键事件
if (e.which == 13) {
$('input[type="button"]').click();
}
});
$('input[name="password"]').focus(function () {
$(this).attr('type', 'password');
});
$('input[type="text"]').focus(function () {
$(this).prev().animate({ 'opacity': '1' }, 200);
});
$('input[type="text"],input[type="password"]').blur(function () {
$(this).prev().animate({ 'opacity': '.5' }, 200);
});
function checkCode() {
if($("#username").val().length==0||$("#password").val().length==0){
alert("用户名或密码不能为空");
}
else if($("#code").val().length==0){
alert("验证码不能为空");
}
else if($("#code").val().toUpperCase()!=CodeVal.toUpperCase()){
alert("验证码错误！");
}
}
</script>
</body>
</html>
<script>
$(window).resize(resizeCanvas);
$(window).load(onloadFun);
var model = { //数据配置
hue: 237,
stars: [],
starImg: null,
count: 0,
smoke: null,
maxStars: 4000,
}
var canvas = $("#canvas_app");
var ctx = canvas.get(0).getContext("2d");
var starImg;
function init() {
createStar(); //星星
createSmoke(); //烟雾
animation();
}
function animation() {
ctx.globalCompositeOperation = 'source-over';
ctx.globalAlpha = 0.3;
ctx.fillStyle = 'hsla(' + model.hue + ', 64%, 6%, 1)';
ctx.fillRect(0, 0, $(window).get(0).innerWidth, $(window).get(0).innerHeight)
ctx.globalCompositeOperation = 'lighter';
for (var i = 1, l = model.stars.length; i < l; i++) {
model.stars[i].draw(ctx, model.starImg);
};
model.smoke.update(ctx);
window.requestAnimationFrame(animation);
}
function createStar() {
//圆点
var canvas2 = document.createElement('canvas');
model.starImg = canvas2;
var ctx2 = canvas2.getContext("2d");
canvas2.width = 88;
canvas2.height = 88;
var half = canvas2.width / 2;
var gradient2 = ctx2.createRadialGradient(half, half, 0, half, half, half);
gradient2.addColorStop(0.01, '#fff');
gradient2.addColorStop(0.1, 'hsl(' + model.hue + ', 61%, 50%)');
gradient2.addColorStop(0.15, 'hsl(' + model.hue + ', 64%, 80%)');
gradient2.addColorStop(0.26, 'transparent');
ctx2.fillStyle = gradient2;
ctx2.beginPath();
ctx2.arc(half, half, half, 0, Math.PI * 2);
ctx2.fill();
for (var i = 0; i < model.maxStars; i++) {
var star = new Star($(window).get(0).innerWidth, $(window).get(0).innerHeight, model.maxStars);
model.stars[i] = star;
}
}
function createSmoke() {
model.smoke = new Smoke();
}
function resizeCanvas() {
canvas.attr("width", $(window).get(0).innerWidth);
canvas.attr("height", $(window).get(0).innerHeight);
ctx.fillRect(0, 0, canvas.width(), canvas.height());
//图片
$(".second").attr("width", $(window).get(0).innerWidth);
$(".second").attr("height", $(window).get(0).innerHeight);
}
function onloadFun() {
init();
resizeCanvas();
}
</script>