WebRoot/qiantai/cart/mycart.jsp

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<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<%@ page isELIgnored="false" %> 
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!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>
		<meta http-equiv="pragma" content="no-cache" />
		<meta http-equiv="cache-control" content="no-cache" />
		<meta http-equiv="expires" content="0" />
		<meta http-equiv="keywords" content="keyword1,keyword2,keyword3" />
		<meta http-equiv="description" content="This is my page" />
		
		<link href="<%=path %>/css/layout.css" type="text/css" rel="stylesheet" />
 <script type='text/javascript' src='<%=path %>/dwr/interface/cartService.js'></script>
	<script type='text/javascript' src='<%=path %>/dwr/engine.js'></script>
	<script type='text/javascript' src='<%=path %>/dwr/util.js'></script>
    
    <script type="text/javascript">
            function delGoodsFromCart(goodsId)
	        {
	            document.getElementById("indicator1").style.display="block";
	            cartService.delGoodsFromCart(goodsId,callback111);
	        }
           
            function clearCart()
	        {
	            document.getElementById("indicator1").style.display="block";
	            cartService.clearCart(callback111);
	        }
           
            function modiNum(goodsId,quantity)
	        {
	        var r1 = /^[_0-9]{0,20}$/
	            var val=r1.test(quantity); //str为你要判断的字符 执行返回结果 true 或 false
	            if(val==false)
	            {
	                alert("数量必须是数字,请重新输入");
	            }
	            else
	            {
	                document.getElementById("indicator1").style.display="block";
	                cartService.modiNum(goodsId,quantity,callback111);
	            }
	        }
	        
	        function callback111(data)
	        {
	            document.getElementById("indicator1").style.display="none";
	            if(data=="no")
			    {
			        alert("库存不足");
			    }
			    if(data=="yes")
			    {