下面是实现的效果图，本文摘只讲支付宝的页面实现。收银台下方默认显示支付宝的收款码。用户也可以点击[立即支付]跳转到支付宝的收银台进行支付。

本页面是基于bootstrap实现的，会用到部分bootstrap的结构。

1.HTML部分

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<div class="panel panel-default">
        <!-- 收银台LOGO -->
        <div class="panel-body pay_cashier">
            <div class="col-xs-12">
                <img src="images/cashier.jpg" />
            </div>
        </div>
        <!-- /END CASHIER LOGO -->
        <!-- 支付金额 -->
        <div class="panel-body pay_title">
            <span class="col-xs-1 control-label text-left">支付金额：</span>
            <div class="col-xs-3" style="color:#ff2832;font-size:18px;">¥
                200
            </div>
            <span class="col-xs-1 control-label">申请单号：</span>
            <div class="col-xs-3 text-left">
                SQ201810100001
            </div>
        </div>
        <!--/ END 支付金额 -->
 
        <!-- PAY WAY -->
        <div class="panel-body pay_box">
            <table class="payment_table">
                <tbody>
                    <tr>
                        <td>
                            <a href="javascript:;" onclick="choosePayType(this,'ALIPAY')" class="selPayType1 current">
                                <img src="images/zhifubao.gif" title="支付宝" width="140" height="40">
                                <span></span>
                            </a>
                        </td>
                        <td>
                            <a href="javascript:;" onclick="choosePayType(this,'WECHAT')" class="selPayType1">
                                <img src="images/weixin.gif" title="微信支付" width="140" height="40">
                                <span></span>
                            </a>
                        </td>
                    </tr>
                </tbody>
            </table>
            <div>
                <a id="btnCommonSubmit" href="javascript:void(0);" class="btn btn_big">立即支付</a>
            </div>
        </div>
 
        <!-- END PAY WAY -->
 
        <!--遮罩层-->
        <div id="divPopMasks" class="masks" style="display:none;">
            <iframe style="border:none;height:100%;width:100%;opacity=0;filter:alpha(opacity=0);"></iframe>
        </div>
 
        <!-- 提交后台发起支付-->
        <form id="formPaySubmit" action="paySubmit.html" method="post" target="_blank">
            <input type="hidden" name="payType" value="" />
            <input type="hidden" name="bizId" value="100" />
        </form>
        <!-- /end提交后台发起支付-->
 
        <!--微信扫码弹层-->
        <div id="popWeiXinPay" class="pop_tip" style="display:none;">
            <div class="head_title">
                <div class="title_name">微信扫码支付</div>
                <div class="close" onclick="javascript:Pay.hideWeixinPay();"></div>
            </div>
            <p class="price">支付<span class="amountStr">¥
                    <s:property value="orderInfoBO.orderInfo.confirmMoney" /></span>元</p>
            <div class="code2">
                <iframe id="popWeiXinPayIframe" name="weiXinPayIframe" style="width: 170px; height: 170px;" frameborder="no"
                    border="0" marginwidth="0" marginheight="0" scrolling="no" allowtransparency="yes" src="/page/pop-loading.html"></iframe>
                <span class="codew_icon"><img src="../images/wei_code2_i.png" /></span>
            </div>
            <a href="javascript:Pay.finishPay();" class="btn_b">若微信支付已完成，请点击！</a>
        </div>
        <div id="popWeiXinFailure" class="pop_tip" style="display: none;">
            <div class="head_title">
                <div class="title_name">微信扫码支付</div>
                <div class="close" onclick="javascript:hidePop('popWeiXinFailure');"></div>
            </div>
            <p class="price">支付<span class="amountStr">¥
                    <s:property value="orderInfoBO.orderInfo.confirmMoney" /></span>元</p>
            <div class="code2">
                <img src="../images/wei_code2.png" width="170" height="170">
                <span class="codew_icon"><img src="../images/wei_code2_i.png" /></span>
                <div class="mask_s"></div>
                <div class="tip">
                    获取失败，<a href="javascript:void(0);" onclick="javascript:Pay.submit('WECHAT');">请重试</a>
                </div>
            </div>
        </div>
        <!--/END微信扫码弹层-->
 
        <!-- 推荐支付宝支付开始 -->
        <div class="panel-body pay_recommend">
            <p style="padding-left:15px;">推荐支付宝扫码支付:</p>
            <div class="scan_code">
                <iframe name="alipayScanIframe" src="alipayQRCode.html?bizId=100&alipayPayMethod=4" width="103" height="103" frameborder="0"
                scrolling="no" style="height: 103px;width:103px; border:1px solid #aaa;"></iframe>
                <img style="position:relative;top:-58px;" class="scan" src="images/scan.png" alt=""
                    width="27" height="27">
                <div class="scan_text" style="position:relative;top:-58px;">
                    <span>打开手机支付宝</span><span>扫一扫继续付款</span>
                    <span class="operation" style="background: url(images/right.png) right center no-repeat;">操作演示</span>
                </div>
                <div class="hide1" style="display:none;">
                    <img class="step1" src="images/step1.gif" alt="">
                    <img class="step3" src="images/middle.pn" alt="">
                    <img class="step2" src="images/step2.gif" alt="">
                </div>
            </div>
        </div>
        <!-- 推荐支付宝支付结束 -->
    </div>

2.CSS部分

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.control-label{padding-top:3px;}
.text-left{padding-top:4px;}
.pay_cashier{border-bottom:4px solid #ff2832;}
.pay_title{background:#f5f5f5;line-height:34px;padding:12px 30px;}
.pay_box{
    border:1px solid #dcdcdc;padding:10px;
}
.payment_table {
    text-align: center;
    line-height: 16px;
    margin: 10px 0 0 20px;
    display: inline-block;
    *display: inline;
    *zoom: 1;
    vertical-align: top;
}
 
.payment_table td {
    width: 142px;
    padding: 0 50px 10px 0;
    vertical-align: top;
}
.payment_table td a {
    border: 1px solid #ccc;
    display: block;
    margin-bottom: 5px;
    position: relative;
    text-decoration:none;
}
.payment_table td a.current {
    border: 2px solid #ff6565;
    margin: -1px -1px 4px;
}
.payment_table td a span {
    width: 18px;
    height: 18px;
    background: url("../images/choosen.png") 0 0 no-repeat;
    position: absolute;
    right: 0;
    bottom: 0;
    z-index: 2;
    display: none;
}
.payment_table td a.current span {
    display: block;
}
a.btn {
    background-color: #ff2832;
    height: 26px;
    line-height: 26px;
    text-align: center;
    display: inline-block;
    color: #fff;
    font-size: 12px;
    padding: 0 10px;
    border-radius: 3px;
    margin: 0 0 6px 20px;
    text-decoration:none;
}
a.btn_big {
    width: 120px;
    height: 40px;
    line-height: 40px;
    font-size: 16px;
}
 
.pay_recommend{border:1px solid #ccc; margin-top:5px;}
 
.scan_code {
    padding: 20px 20px 10px;
    position: relative;
}
 
.scan_code .scan {
    margin-left: 30px;
    margin-bottom: 70px;
}
 
.scan_code .scan_text {
    clear: both;
    width: 100px;
    height: 110px;
    margin-left: 190px;
    margin-top: -101px;
    line-height: 18px;
}
.scan_code span {
    display: inline-block;
    color: #646464;
    font-size: 14px;
    font-family: "microsoft yahei";
}
.scan_code .operation {
    width: 80px;
    margin-top: 46px;
    color: #969696;
    padding-left: 20px;
    cursor: pointer;
}
.scan_code span {
    display: inline-block;
    color: #646464;
    font-size: 14px;
    font-family: "microsoft yahei";
}
.scan_code .hide1 {
    display: none;
    position: absolute;
    top: 20px;
    left: 373px;
}
.pop-layer-payconfirm {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10008;
    _position: absolute;
    _top: expression(eval(document.documentElement.scrollTop));
    _height: expression(eval(document.documentElement.clientHeight));
}
 
.pop-layer-payconfirm-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 20000;
    height: 100%;
    _position: absolute;
    background-color: #000;
    filter: alpha(opacity=10);
    opacity: 0.1;
}
 
.pop-layer-payconfirm-mask {
    position: fixed;
    z-index: 20001;
    overflow: hidden;
    border: 1px solid #ccc;
    background-color: #ffffff;
    top: 50%;
    left: 50%;
    width: 230px;
    margin-left: -115px;
    margin-top: -141px;
}
 
.pop-layer-payconfirm-cheat {
    width: 320px;
    border: 1px solid #ccc;
    color: #646464;
    background: #fff;
    font: 12px "Hiragino Sans GB","Verdana","Microsoft Yahei";
}
 
 
 
.pop-layer-payconfirm h3 {
    font-size: 14px;
    height: 34px;
    line-height: 34px;
    border-bottom: 1px solid #e6e6e6;
    margin: 0 12px;
    position: relative;
    font-weight: normal;
}
 
.pop-layer-payconfirm .pop-info {
    padding: 30px 25px;
    color: #323232;
}
 
.pop-layer-payconfirm .nav {
    line-height: 30px;
    font-weight: bold;
    font-size: 14px;
}
 
.pop-layer-payconfirm .text {
    line-height: 20px;
    color: #646464;
}
 
.pop-layer-payconfirm .btn {
    padding: 17px 0 0 2px;
}
 
.pop-layer-payconfirm .btn {
    height: 30px;
}
 
.pop-layer-payconfirm .btn a.ok, .pop-layer-payconfirm .btn a.ok:hover {
    background: #ff2832;
    color: #fff;
}
.pop-layer-payconfirm .btn a, .pop-layer-payconfirm .btn a:hover {
    height: 28px;
    line-height: 28px;
    float: left;
    padding: 0 20px;
    text-decoration: none;
    margin-right: 20px;
    _display: inline;
    white-space: nowrap;
}
.pop-layer-payconfirm .btn a.qx, .pop-layer-payconfirm .btn a.qx:hover {
    background: #fafafa;
    color: #646464;
    border: 1px solid #d2d2d2;
}
 
.pop-layer-payconfirm h3 .close, .pop-layer-payconfirm h3 .close:hover {
    background:url("../images/icon_close.png") no-repeat;
    top: 13px;
    position: absolute;
    right: 0;
    display: block;
    width: 13px;
    height: 13px;
    overflow: hidden;
    font-size: 0;
    line-height: 39px;
}
 
.masks {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    _position: absolute;
    _top: expression(eval(document.documentElement.scrollTop));
    _height: expression(eval(document.documentElement.clientHeight));
    background-color: #000;
    filter: alpha(opacity=20);
    opacity: 0.2;
}
.pop_tip {
    padding: 0;
    height: 360px;
    width: 548px;
    text-align: center;
    border: 1px solid #ccc;
    background-color: #fff;
    position: absolute;
    border: 1px solid #ff4545;
    z-index: 10000;
    left: 50%;
    top: 50%;
    margin: -180px 0 0 -275px;
}
.pop_tip .head_title {
    background-color: #ff4545;
    font-size: 16px;
    color: white;
    text-align: left;
    overflow: hidden;
    line-height: 36px;
}
.pop_tip .head_title .title_name {
    float: left;
    margin-left: 20px;
}
.pop_tip .head_title .close {
    background: url("../images/close_icon.png") no-repeat 0 0;
    width: 16px;
    height: 16px;
    float: right;
    margin: 10px;
    cursor: pointer;
}
.pop_tip .price {
    color: #ff4545;
    font-size: 16px;
    font-weight: bold;
    line-height: 20px;
    margin: 25px 0 10px;
}
.pop_tip .code2 {
    width: 170px;
    height: 170px;
    border: 1px solid #dfdfdf;
    margin: 0 auto 22px;
    padding: 9px;
    position: relative;
}
.pop_tip .code2 .codew_icon {
    width: 40px;
    height: 40px;
    position: absolute;
    left: 74px;
    top: 74px;
}
 
.pop_tip .code2 .codew_icon img {
    width: 40px;
    height: 40px;
}
 
.pop_tip .btn_b {
    height: 28px;
    line-height: 28px;
    width: 188px;
    display: inline-block;
    font-size: 12px;
    color: #333;
    text-decoration: none;
    border: 1px solid #ccc;
    border-radius: 14px;
    background-image: -moz-linear-gradient( -90deg, rgb(255,255,255) 0%, rgb(243,242,244) 100%);
    background-image: -webkit-linear-gradient( -90deg, rgb(255,255,255) 0%, rgb(243,242,244) 100%);
    background-image: -ms-linear-gradient( -90deg, rgb(255,255,255) 0%, rgb(243,242,244) 100%);
}
.pop_tip .code2 .mask_s {
    width: 190px;
    height: 190px;
    position: absolute;
    left: 0;
    top: 0;
    background-color: #eee;
    filter: alpha(opacity=50);
    opacity: 0.5;
}
.pop_tip .code2 .tip {
    width: 126px;
    height: 28px;
    line-height: 28px;
    color: #999;
    position: absolute;
    top: 80px;
    left: 32px;
    border-radius: 14px;
    background-color: #fff;
    font-size: 12px;
}

3.JS部分

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<script type="text/javascript">
        var payType='ALIPAY';
        var paySubmitting=false;
        var checkPaidTimer = null;
         
        function alipayPaySuccess() {
            //支付成功了，检查一下后台是否被通知到了
            checkPaidTimer=window.setInterval('Pay.runCheckPaid()',3000);
        }
         
        function choosePayType(ths,_payType) {
            payType = _payType;
            $(".payment_table a").removeClass("current");
            $(ths).addClass("current");
        }
         
        function hidePop(id){
            $("#"+id).hide();
        }
         
        function showPop(id){
            $("#"+id).show();
        }
         
         
        var Pay={
            orderId:100,
            submit:function(payType){
                if(paySubmitting){//防止重复提交
                    return;
                }
                paySubmitting=true;
                $("[name='payType']").val(payType);
                 
                if(payType=='ALIPAY') {
                    //跳转模式
                    showPop('popPayConfirm');
                    $('#formPaySubmit').attr('target', '_blank');
                    $('#formPaySubmit').submit();
                    paySubmitting=false;
                     
                } else if(payType=='WECHAT') {
                    var params = {bizId:100,payType:payType};
                     
                    Pay.submitWeixinScan(params);
                    paySubmitting=false;   
                }
            },
            finishPay:function(){
                window.location.href="inOrderlist.html";
            },
             
            /*
             *隐藏微信支付
            */
            hideWeixinPay:function(){
                hidePop('divPopMasks');
                hidePop('popWeiXinPay');
            },
            /**
             * 弹出微信支付
             */
            popWeixinPay : function() {
                hidePop('popWeiXinFailure');
                showPop('popWeiXinPay');
                showPop('divPopMasks');
            },
             
            /*
             *打开异常
            */
            popQRCodeFailure:function(){
                hidePop('popWeiXinPay');
                showPop('popWeiXinFailure');
            },
            /*
             *显示微信支付二维码
            */
            submitWeixinScan:function (params) {
                $.ajax({
                    type : "POST",
                    url : 'checkOrderQRCode.json',
                    data : params,
                    cache : false,
                    async : false,
                    dataType : "json",
                    success : function(result) {
                        if (result.success) {//
                            var data=result.data;
                            // show qrcode image
                            $('#popWeiXinPayIframe').attr('src','wechatQRCodePay.html?bizId=100');
                            //显示支付二维码
                            Pay.popWeixinPay();
                        }else{
                            if(result.data=='ORDER_ALRADY_PAID'){
                                alert("订单已经支付！",function(){
                                    window.location.href="inOrderlist.html";
                                });
                            }else{
                                Pay.popQRCodeFailure();
                            }
                        }
                    },
                    error : function(XMLHttpRequest, textStatus, errorThrown) {
                        Pay.popQRCodeFailure();
                    }
                });
            },
            startRunCheckPaid : function(orderId){
                clearInterval(checkPaidTimer);
                if(orderId){
                    Pay.orderId=orderId;
                }
                 
                checkPaidTimer=window.setInterval('Pay.runCheckPaid()',3000);
            },
            /**
             * 运行到款检查
             */
            runCheckPaid:function(){
                try {
                    $.ajax({
                        type : "get",
                        url : 'checkPaid.json',
                        data : {'bizId' : Pay.orderId},
                        cache : false,
                        async : false,
                        dataType : "json",
                        success : function(result) {
                            if (result && result.pay_result && result.pay_result=='paid') {// 已到款
                                //让定时器失效
                                clearInterval(checkPaidTimer);
                                checkPaidTimer=null;
                                alert("支付成功",function(){
                                    window.location.href="inOrderlist.html";
                                });
                            }
                        },
                        error : function(XMLHttpRequest, textStatus, errorThrown) {
                        }
                    });
                } catch (err) { /* alert(err); */
                }
            }
        }
         
        $(function(){
            $(".operation").mouseover(function(){
                $(".hide1").show();
            }).mouseout(function(){
                $(".hide1").hide();
            });
             
            //支付按钮
            $("#btnCommonSubmit").click(function(){
                Pay.submit(payType);
            });
        });
        </script>

　代码很简单，没什么好说的，都有注释。下载地址：https://download.csdn.net/download/flying86/10755691