js动态遍历实现购物车的总额，大家来帮我看看
程序代码：<%@ page contentType="text/html;charset=UTF-8" %>
<%@ include file="/WEB-INF/views/include/taglib.jsp"%>
<html>
<head>
<title>订单管理管理</title>
<meta name="decorator" content="default"/>
<script type="text/javascript">
$(document).ready(function() {
//$("#name").focus();
$("#inputForm").validate({
submitHandler: function(form){
loading('正在提交，请稍等...');
form.submit();
},
errorContainer: "#messageBox",
errorPlacement: function(error, element) {
$("#messageBox").text("输入有误，请先更正。");
if (element.is(":checkbox")||element.is(":radio")||element.parent().is(".input-append")){
error.appendTo(element.parent().parent());
} else {
error.insertAfter(element);
}
}
});
});
function addRow(list, idx, tpl, row){
$(list).append(Mustache.render(tpl, {
idx: idx, delBtn: true, row: row
}));
$(list+idx).find("select").each(function(){
$(this).val($(this).attr("data-value"));
});
$(list+idx).find("input[type='checkbox'], input[type='radio']").each(function(){
var ss = $(this).attr("data-value").split(',');
for (var i=0; i<ss.length; i++){
if($(this).val() == ss[i]){
$(this).attr("checked","checked");
}
}
});
}
function delRow(obj, prefix){
var id = $(prefix+"_id");
var delFlag = $(prefix+"_delFlag");
if (id.val() == ""){
$(obj).parent().parent().remove();
}else if(delFlag.val() == "0"){
delFlag.val("1");
$(obj).html("÷").attr("title", "撤销删除");
$(obj).parent().parent().addClass("error");
}else if(delFlag.val() == "1"){
delFlag.val("0");
$(obj).html("×").attr("title", "删除");
$(obj).parent().parent().removeClass("error");
}
}
</script>
</head>
<body>
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li><a href="${ctx}/orderadmin/orderAdd/">订单管理列表</a></li>
<li class="active"><a href="${ctx}/orderadmin/orderAdd/form?id=${orderAdd.id}">订单管理<shiro:hasPermission name="orderadmin:orderAdd:edit">${not empty orderAdd.id?'修改':'添加'}</shiro:hasPermission><shiro:lacksPermission name="orderadmin:orderAdd:edit">查看</shiro:lacksPermission></a></li>
</ul><br/>
</div>
<form:form id="inputForm" modelAttribute="orderAdd" action="${ctx}/orderadmin/orderAdd/save" method="post" class="form-horizontal">
<div class="box-body" style="margin-right: 50px;">
<form:hidden path="id"/>
<sys:message content="${message}"/>
<div class="form-group">
<label class="col-sm-2 control-label">
订单编号：</label>
<div class="col-sm-10 controls">
<form:input path="orderId" htmlEscape="false" maxlength="64" class="form-control " value="${requestScope.orderId}" readonly="true" />
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label">
下单时间：</label>
<div class="col-sm-10 controls">
<input name="orderTime" type="text" readonly="readonly" maxlength="20" class="input-medium Wdate " value="${requestScope.orderTime}" readonly="readonly" />
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label">
商品总额：</label>
<div class="col-sm-10 controls">
<form:input path="comTotal" htmlEscape="false" class="form-control "/>
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label">
支付方式：</label>
<div class="col-sm-10 controls">
<form:radiobuttons path="priceMethod" items="${fns:getDictList('price_method')}" itemLabel="label" itemValue="value" htmlEscape="false" class=""/>
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label">
下单用户：</label>
<div class="col-sm-10 controls">
<sys:treeselect id="orderUser" name="orderUser" value="${orderAdd.orderUser}" labelName="" labelValue=""
title="用户" url="/sys/office/treeData?type=3" cssClass="form-control " allowClear="true" notAllowSelectParent="true"/>
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label">
配送地址：</label>
<div class="col-sm-10 controls">
<form:input path="detaAddress" htmlEscape="false" maxlength="300" class="form-control "/>
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label">
联系电话：</label>
<div class="col-sm-10 controls">
<form:input path="telephone" htmlEscape="false" maxlength="11" class="form-control "/>
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label">
订单状态：</label>
<div class="col-sm-10 controls">
<form:select path="orderState" class="input-medium ">
<form:option value="" label=""/>
<form:options items="${fns:getDictList('order_state')}" itemLabel="label" itemValue="value" htmlEscape="false"/>
</form:select>
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label">
备注：</label>
<div class="col-sm-10 controls">
<form:textarea path="remarks" htmlEscape="false" rows="4" maxlength="64" class="form-control "/>
</div>
</div>
<div class="form-group" style="margin-left: 120px;">
<!-- <label class="control-label">order_info：</label>-->
<div class="controls">
<table id="contentTable" class="table table-striped table-bordered table-condensed">
<thead>
<tr>
<th class="hide"></th>
<th>商品名称</th>
<th>单价</th>
<th>数量</th>
<shiro:hasPermission name="orderadmin:orderAdd:edit"><th width="10">操作</th></shiro:hasPermission>
</tr>
</thead>
<tbody id="orderInfoList">
</tbody>
<shiro:hasPermission name="orderadmin:orderAdd:edit"><tfoot>
<tr><td colspan="6"><a href="javascript:" onclick="addRow('#orderInfoList', orderInfoRowIdx, orderInfoTpl);orderInfoRowIdx = orderInfoRowIdx + 1;" class="btn">新增</a></td></tr>
</tfoot></shiro:hasPermission>
</table>
<script type="text/template" id="orderInfoTpl">//<!--
<tr id="orderInfoList{{idx}}">
<td class="hide">
<input id="orderInfoList{{idx}}_id" name="orderInfoList[{{idx}}].id" type="hidden" value="{{row.id}}"/>
<input id="orderInfoList{{idx}}_delFlag" name="orderInfoList[{{idx}}].delFlag" type="hidden" value="0"/>
</td>
<td>
<input id="orderInfoList{{idx}}_comName" name="orderInfoList[{{idx}}].comName" type="text" value="{{}}" maxlength="100" class="form-control input-sm "/>
</td>
<td>
<input id="orderInfoList{{idx}}_price" name="orderInfoList[{{idx}}].price" type="text" value="{{row.price}}" class="form-control input-sm "/>
</td>
<td>
<input id="orderInfoList{{idx}}_num" name="orderInfoList[{{idx}}].num" type="text" value="{{row.num}}" maxlength="11" class="form-control input-sm "/>
</td>
<shiro:hasPermission name="orderadmin:orderAdd:edit"><td class="text-center" width="10">
{{#delBtn}}<span class="close" onclick="delRow(this, '#orderInfoList{{idx}}')" title="删除">×</span>{{/delBtn}}
</td></shiro:hasPermission>
</tr>//-->
</script>
<script type="text/javascript">
var orderInfoRowIdx = 0, orderInfoTpl = $("#orderInfoTpl").html().replace(/(\/\/\<!\-\-)|(\/\/\-\->)/g,"");
$(document).ready(function() {
var data = ${fns:toJson(orderAdd.orderInfoList)};
for (var i=0; i<data.length; i++){
addRow('#orderInfoList', orderInfoRowIdx, orderInfoTpl, data[i]);
orderInfoRowIdx = orderInfoRowIdx + 1;
}
});
</script>
</div>
</div>
</div>
<div class="form-actions">
<shiro:hasPermission name="orderadmin:orderAdd:edit"><input id="btnSubmit" class="btn btn-primary" type="submit" value="保 存"/> </shiro:hasPermission>
<input id="btnCancel" class="btn" type="button" value="返 回" onclick="history.go(-1)"/>
</div>
</form:form>
</body>
</html>
