cart.jsp

一个基于java工厂模式的 的实现

<%@page contentType="text/html"%>
<%@page pageEncoding="gb2312"%>
<%@ page import="com.ebuy.web.beans.*" %>
<script>
        function execModify()
        {
            var f=document.frmcart;
            f.exectype.value="modify";
            return true;
        }
        function execRemove()
        {
            var f=document.frmcart;
            var len=f.ckselect.length;
            var v1=false;
            if(len>1)
            {
                for(var i=0;i<len;i++)
                {
                    if(f.ckselect[i].checked==true)
                    {
                       v1=true;
                       break;
                    }
                }
            }
            else
            {
                v1=f.ckselect.checked;
            }
            if(v1==false)
            {
                window.alert("请选择要删除的商品");
                return false;
            }
            else
            {
                var v2=window.confirm("确实要删除选中的商品吗?");   
                if(v2==true)
                {
                    f.exectype.value="remove";
                    return true;
                }
                else
                {
                    if(len==1)
                    {
                        f.ckselect.checked=false;
                    }
                    else
                    {
                        for(var j=0;j<len;j++)
                        {
                           f.ckselect[j].checked=false;
                        }
                    }
                    return false;
                }
            }            
        }
        function CheckQuantity()
        {
            var str=event.srcElement.value;
            var flag = false;
            if(isNaN(str) || str=="")
            {
                flag=true;
            }
            if(parseFloat(str)>parseInt(str))
            {
                flag=true;
            }
            if(parseInt(str)<1 || parseInt(str)>99)
            {
                flag=true;
            }
            if(flag)
            {
                window.alert("数量只能在1-99之间!");
                event.srcElement.focus();
            }
        }
    </script>
<%
    ShoppingCart cart=(ShoppingCart)request.getSession().getAttribute("cart");
    java.util.ArrayList list=cart.getItems();
    java.text.NumberFormat format=java.text.NumberFormat.getCurrencyInstance();
%>
<table cellSpacing="1" cellPadding="1" width= 600 border="0" style="font-size:xx-small;" align="center">           
    <tr height="60">
        <td valign="middle" colspan="2" style="FONT-WEIGHT: bold; FONT-SIZE: large; COLOR: #0033ff; TEXT-ALIGN: center">
            <span>您 的 购 物 车</span>
        </td>
    </tr>
    <form name="frmcart" action="servlets/cartservlet" method="post">
        <TR VALIGN="top">
            <TD>
                <table  width= "100%" cellspacing="0" cellpadding="3" rules="all" bordercolor="#CCCCCC" border="1" id="tbCart" 
                        style="background-color:White;border-color:#CCCCCC;border-width:1px;border-style:None;height:0px;width:100%;border-collapse:collapse;">
                    <tr align="Center" 
                        style="color:White;background-color:#C0C0FF;border-color:Black;border-style:Groove;font-size:xx-Small;font-weight:bold;height:10px;">
                        <td style="width:10%;">删除</td><td style="width:8%;">序号</td><td style="width:45%;">商品名称</td><td style="width:14%;">你的价格</td><td align="Center" 
                                                                                                                                                       style="width:6%;">数量</td><td style="width:17%;">小计</td>
                    </tr>             
                    <%
                    java.util.Iterator<Goods> iter=list.iterator();
                    int index=0;
                    Goods good;
                    while(iter.hasNext())
                    {
                        good=iter.next();
                    %>
                    
                    <tr  align="Center" onMouseOver="this.style.backgroundColor='LemonChiffon'" OnMouseOut="this.style.backgroundColor = 
                         'white'" style="color:#000066;background-color:White;font-size:xx-Small;height:10px;">
                        <td>
                            <input type="checkbox" name="ckselect" value="<%=index%>" title= "选中后删除"/>
                        </td>
                        <td><%=index+1%></td>
                        <td>
                            <a href="productdetails.jsp?ID=<%=good.getProductid()%>" target="_blank">
                                <%=good.getProductname()%>
                            </a>
                        </td>
                        <td>
                            <%=format.format(good.getRealprice())%>
                        </td>                                   
                        <td>
                            <input type="text"  name="<%=index%>" value ="<%=good.getQuantity()%>" maxlength="2" style="border-style:Groove;height:20px;width:59px;" onBlur="CheckQuantity()" onkeydown="if(event.keyCode==13) event.returnValue=false;"/>
                        </td>
                        <td>
                            <%=format.format(good.getSubtotal())%>
                        </td>                  
                    </tr>
                    <%
                    index++;
                    }
                    %>
                    
                </table>
            </TD>
        </TR>                  
        <TR height=40>
            <TD align="right"><span style="color:#0000C0;">合计金额: <%=format.format(cart.getTotalmoney())%></span></TD>
        </TR>          
        <TR>                   
            <TD align="right">
                <table>
                    <tr>
                        <td>
                            <input type="hidden" name="exectype" size="2"/>
                            <input type="image"  src="img/btnEdit.jpg" border="0"  title="修改数量"  onclick="return execModify()">  
                            <input type="image" src="img/btnDelete.jpg" border="0" title="删除商品" onclick="return execRemove()">
                                             
                            <a href="index.jsp"><img src="img/btnContinue.jpg" border="0" /></a>
                            <a href="myebuy/checkout.jsp"><img src="img/btnCheckout.jpg" border="0" /></a>
                        </td>               
                    </tr>
                </table>
            </TD>                        
        </TR>      
    </FORM>
</table>