Java育儿园约架专栏

渣渣css/js登录页面

2019-09-26  本文已影响0人  磨陀货_
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>梦幻登录</title>
    <style type="text/css">
        * {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        body {
            overflow: hidden;
        }
        #bg_wrap {
            width: 100%;
            height: 100%;
            position: absolute;
            left: 0;
            top: 0;
            overflow: hidden;
        }
        #bg_wrap div {
            width: 100%;
            height: 100%;
            position: absolute;
            left: 0;
            top: 0;
            opacity: 0;
            /* 设置透明度 */
            transition: opacity 3s;
        }
        /* nth-of-type(1) *筛选选择器选择第一个*/
        #bg_wrap div:nth-of-type(1) {
            opacity: 1;
        }
        #Login {
            width: 272px;
            height: 300px;
            margin: 200px auto;
        }
        #Login .move {
            position: absolute;
            top: -100px;
            z-index: 999;
        }
        #Login h3 {
            width: 270px;
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            font-family: '微软雅黑';
            text-align: center;
            margin-bottom: 30px;
            cursor: move;
        }
        #Login input.text {
            width: 270px;
            height: 42px;
            color: #fff;
            background: rgba(45, 45, 45, 0.15);
            border-radius: 6px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 2px 3px 0 rgba(0, 0, 0, 1.0) inset;
            text-indent: 10px;
        }
        #Login input.btn {
            /* top: 280px; */
            background: #ef4300;
            width: 272px;
            height: 44px;
            border-radius: 6px;
            color: #fff;
            box-shadow: 0 15px 30px 0 rgba(255, 255, 255, 0.25) inset, 0 2px 7px 0 rgba(0, 0, 0, 0.2);
            border: 0;
            text-align: center;
        }

        input::-webkit-input-placeholder {
            color: #fff;
        }

        <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    </style>

    <%@ include file="/WEB-INF/views/head.jsp"%>
    <script>
        // 检查自己是否是顶级页面 /login
        if (top != window) {// 如果不是顶级
            //把子页面的地址,赋值给顶级页面显示
            window.top.location.href = window.location.href;
        }

        //var url = "/login";
        //就是点击登录后成功跳转的页面
        function submitForm(){
           // alert("ss");
           //  loginForm 登录表单
            $('#loginForm').form('submit', {
                url:"/login",
                //url:url,
                onSubmit: function(){
                    return  $(this).form('validate');
                },
                success:function(data){
                    //把一个json字符串转成一个json对象
                    var result = JSON.parse(data);
                    //登录成功跳到主页面,登录失败给出提示
                    if(result.success){
                        //js的跳转(BOM:浏览器对象模型)
                        window.location.href = "/main";
                    }else{
                        $.messager.alert('警告',result.msg,"info");
                    }
                }
            });
        }

        //回车登录
        $(document.documentElement).on("keyup", function(event) {
            //console.debug(event.keyCode);
            var keyCode = event.keyCode;
            console.debug(keyCode);
            if (keyCode === 13) { // 捕获回车
                submitForm(); // 提交表单
            }
        });
    </script>
</head>
<body>
<%--图片--%>
<div id="bg_wrap">
    <div><img src="/images/head/1.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/2.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/3.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/4.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/5.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/6.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/8.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/9.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/10.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/11.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/12.jpg" width="100%" height="100%"></div>
    <div><img src="/images/head/13.jpg" width="100%" height="100%"></div>
</div>


<div id="Login">
    <h3 id="title" class="move">來啦 小老弟~~</h3>
    <form id="loginForm"  method="post" action="/#">
        <input type="text" placeholder="账号" class="text move" name="username" id="username">
        <input type="password" placeholder="密码" class="text move" name="password" id="password">
        <input type="button" value="走  妳" class="btn move" onclick="submitForm()">
    </form>
</div>


<script type="text/javascript">
    /*背景渐变*/
    /*function(){} 匿名函数
     ()()   IIFE匿名函数立刻执行,函数自执行体*/
    //主要是图片变浅等
    (function() {
        var timer = null; //声明定时器
        var oImg = document.querySelectorAll('#bg_wrap div') //h5最新元素获取写法获取到的是一组元素
        //querySelector获取单个元素的 兼容ie8
        var len = oImg.length; //3
        var index = 0;
        timer = setInterval(function() {
            oImg[index].style.opacity = 0;
            index++;
            // if(index>=3){
            // index=0;
            // }
            index %= len; //index=index%len求模取余 0%3=0; 1%3=1; 2%3=2; 3%3=0;
            oImg[index].style.opacity = 1;
        }, 3000);
    })();

    // 重力模拟弹跳系统
    (function() {
        /*
        改变定位元素的top值
        达到指定位置之后进行弹跳一次
        多个元素一次运动
        动画序列*/
        var oMove = document.querySelectorAll('.move');
        var oLen = oMove.length;
        var timer = null;
        var timeout = null;
        var speed = 3; //移动距离
        move(oLen - 1);
        function move(index) {
            if (index < 0) {
                clearInterval(timer); //清除循环定时器
                clearTimeout(timeout); //清除延时定时器
                return; //终止函数
            }
            var endTop = 150 + (index * 60); //根据下标计算endTop值
            timer = setInterval(function() {
                speed += 3;
                var T = oMove[index].offsetTop + speed; //设置每一次的top值
                if (T > endTop) {
                    T = endTop;
                    speed *= -1 //取反,让移动距离变为负数
                    speed *= 0.4;
                    //慢慢停下来
                }
                oMove[index].style.top = T + 'px';
            }, 20);
            timeout = setTimeout(function() {
                clearInterval(timer);
                index--;
                console.log(9);
                move(index);
                console.log(index);
            }, 900) //过900毫秒之后再执行方法里的代码
        }
    })()
</script>
</body>
</html>
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