jQuery实现购物车表单自动结算效果实例
作者：企鹅
这篇文章主要介绍了jQuery实现购物车表单自动结算效果,涉及jquery动态获取页面元素及实时改变页面元素值的技巧,具有一定参考借鉴价值,需要的朋友可以参考下
本文实例讲述了jQuery实现购物车表单自动结算效果。分享给大家供大家参考。具体如下：
这里jQuery实现购物车表单自动结算，只要用户把所购商品的数量输入进去，就可以适时计算出商品总额，金额+运费，类似淘宝的购物车结算功能，计算过程是适时的，用jquery实现了Ajax不刷新网页就计算的功能，做购物类网站的或许可以用上这个例子。
运行效果截图如下：
具体代码如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>jQuery购物车表单自动结算</title>
<style>
*{margin:0;padding:0;}
body{font:12px "Lucida Grande", Helvetica, Sans-Serif;padding:50px;}
table{border-collapse:collapse;}
#order-table{width:100%;}
#order-table td{padding:5px;}
#order-table th{padding:5px;background:black;color:white;text-align:left;}
#order-table td.row-total{text-align:right;}
#order-table td input{width:75px;text-align:center;}
#order-table tr.even td{background:#eee;}
#order-table td .total-box,.total-box{border:3px solid green;width:70px;padding:3px;margin:5px 0 5px 0;text-align:center;font-size:14px;}
#shipping-subtotal{margin:0;}
#shipping-table{width:350px;float:right;}
#shipping-table td{padding:5px;}
#shipping-table th{padding:5px;background:black;color:white;text-align:left;}
#shipping-table td input{width:69px;text-align:center;}
#order-total{font-weight:bold;font-size:21px;width:110px;}
</style>
<script type="text/javascript" src="jquery-1.6.2.min.js"></script>
<script type="text/javascript">
function IsNumeric(sText)
{
var ValidChars = "0123456789.";
var IsNumber=true;
var Char;
for (i = 0; i < sText.length && IsNumber == true; i++)
{
Char = sText.charAt(i);
if (ValidChars.indexOf(Char) == -1)
{
IsNumber = false;
}
}
return IsNumber;
};
function calcProdSubTotal() {
var prodSubTotal = 0;
$(".row-total-input").each(function(){
var valString = $(this).val() || 0;
prodSubTotal += parseInt(valString);
});
$("#product-subtotal").val(prodSubTotal);
};
function calcTotalPallets() {
var totalPallets = 0;
$(".num-pallets-input").each(function() {
var thisValue = $(this).val();
if ( (IsNumeric(thisValue)) && (thisValue != '') ) {
totalPallets += parseInt(thisValue);
};
});
$("#total-pallets-input").val(totalPallets);
};
function calcShippingTotal() {
var totalPallets = $("#total-pallets-input").val() || 0;
var shippingRate = $("#shipping-rate").text() || 0;
var shippingTotal = totalPallets * shippingRate;
$("#shipping-subtotal").val(shippingTotal);
};
function calcOrderTotal() {
var orderTotal = 0;
var productSubtotal = $("#product-subtotal").val() || 0;
var shippingSubtotal = $("#shipping-subtotal").val() || 0;
var orderTotal = parseInt(productSubtotal) + parseInt(shippingSubtotal);
var orderTotalNice = "$" + orderTotal;
$("#order-total").val(orderTotalNice);
};
$(function(){
$('.num-pallets-input').blur(function(){
var $this = $(this);
var numPallets = $this.val();
var multiplier = $this
.parent().parent()
.find("td.price-per-pallet span")
.text();
if ( (IsNumeric(numPallets)) && (numPallets != '') ) {
var rowTotal = numPallets * multiplier;
$this
.css("background-color", "white")
.parent().parent()
.find("td.row-total input")
.val(rowTotal);
} else {
$this.css("background-color", "#ffdcdc");
};
calcProdSubTotal();
calcTotalPallets();
calcShippingTotal();
calcOrderTotal();
});
});
</script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head>
<body>
<h1>jQuery购物车自动计算表单金额</h1>
<table id="order-table">
<tr>
<th>商品名称</th>
<th>数量</th>
<th>X</th>
<th>单价</th>
<th>=</th>
<th style="text-align: right;">总计</th>
</tr>
<tr class="odd">
<td class="product-title">裤子</td>
<td class="num-pallets">
<input type="text" class="num-pallets-input" id="turface-pro-league-num-pallets" ></input>
</td>
<td class="times">X</td>
<td class="price-per-pallet">$<span>340</span></td>
<td class="equals">=</td>
<td class="row-total">
<input type="text" class="row-total-input" id="turface-pro-league-row-total" disabled="disabled"></input>
</td>
</tr>
<tr class="even">
<td class="product-title">袜子</td>
<td class="num-pallets">
<input type="text" class="num-pallets-input" id="turface-pro-league-red-num-pallets"></input>
</td>
<td class="times">X</td>
<td class="price-per-pallet">$<span>455</span></td>
<td class="equals">=</td>
<td class="row-total">
<input type="text" class="row-total-input" id="turface-pro-league-red-row-total" disabled="disabled"></input>
</td>
</tr>
<tr class="odd">
<td class="product-title">婴儿用品</td>
<td class="num-pallets">
<input type="text" class="num-pallets-input" id="turface-quick-dry-num-pallets" ></input>
</td>
<td class="times">X</td>
<td class="price-per-pallet">$<span>300</span></td>
<td class="equals">=</td>
<td class="row-total">
<input type="text" class="row-total-input" id="turface-quick-dry-row-total" disabled="disabled"></input>
</td>
</tr>
<tr class="even">
<td class="product-title">电脑用品</td>
<td class="num-pallets">
<input type="text" class="num-pallets-input" id="turface-mound-clay-red-num-pallets"></input>
</td>
<td class="times">X</td>
<td class="price-per-pallet">$<span>410</span></td>
<td class="equals">=</td>
<td class="row-total">
<input type="text" class="row-total-input" id="turface-mound-clay-red-row-total" disabled="disabled"></input>
</td>
</tr>
<tr class="odd">
<td class="product-title">汽车装饰用品</td>
<td class="num-pallets">
<input type="text" class="num-pallets-input" id="diamond-pro-red-num-pallets" ></input>
</td>
<td class="times">X</td>
<td class="price-per-pallet">$<span>365</span></td>
<td class="equals">=</td>
<td class="row-total">
<input type="text" class="row-total-input" id="diamond-pro-red-row-total" disabled="disabled"></input>
</td>
</tr>
<tr class="even">
<td class="product-title">家居装饰用品</em></td>
<td class="num-pallets">
<input type="text" class="num-pallets-input" id="diamond-pro-drying-agent-num-pallets"></input>
</td>
<td class="times">X</td>
<td class="price-per-pallet">$<span>340</span></td>
<td class="equals">=</td>
<td class="row-total">
<input type="text" class="row-total-input" id="diamond-pro-drying-agent-row-total" disabled="disabled"></input>
</td>
</tr>
<tr class="odd">
<td class="product-title">生活用品</td>
<td class="num-pallets">
<input type="text" class="num-pallets-input" id="diamond-pro-professional-num-pallets" ></input>
</td>
<td class="times">X</td>
<td class="price-per-pallet">$<span>375</span></td>
<td class="equals">=</td>
<td class="row-total">
<input type="text" class="row-total-input" id="diamond-pro-professional-row-total" disabled="disabled"></input>
</td>
</tr>
<tr class="even">
<td class="product-title">建材用品</td>
<td class="num-pallets">
<input type="text" class="num-pallets-input" id="diamond-pro-top-dressing-num-pallets"></input>
</td>
<td class="times">X</td>
<td class="price-per-pallet">$<span>340</span></td>
<td class="equals">=</td>
<td class="row-total">
<input type="text" class="row-total-input" id="diamond-pro-top-dressing-row-total" disabled="disabled"></input>
</td>
</tr>
<tr>
<td colspan="6" style="text-align: right;">产品小计:
<input type="text" class="total-box" id="product-subtotal" disabled="disabled"></input>
</td>
</tr>
</table>
<table id="shipping-table">
<tr>
<th>总数量.</th>
<th>X</th>
<th>运费</th>
<th>=</th>
<th style="text-align: right;">总运费</th>
</tr>
<tr>
<td id="total-pallets">
<input id="total-pallets-input" type="text" disabled="disabled"></input>
</td>
<td>X</td>
<td id="shipping-rate">10.00</td>
<td>=</td>
<td style="text-align: right;">
<input type="text" class="total-box" id="shipping-subtotal" disabled="disabled"></input>
</td>
</tr>
</table>
<div class="clear"></div>
<div style="text-align:right;">
<span>订单总额: </span>
<input type="text" class="total-box" id="order-total" disabled="disabled"></input>
<br /><br />
<input type="submit" value="提交结账" class="submit" />
</div>
</body>
</html>
希望本文所述对大家的jquery程序设计有所帮助。