📄 bag.jsp
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<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<% request.setCharacterEncoding("gb2312"); %>
<html><head><title>购物车</title><meta http-equiv=Content-Type content="text/html; charset=gb2312">
<link rel=stylesheet href="G.CSS" type=text/css></head>
<body>
<table width=89% border=0 align=center cellpadding=0 cellspacing=0>
<tr>
<td height=27 colspan=3><div align=center><B><img src=IMAGE/car.gif width=28 height=17></B>
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</div></td>
</tr>
<tr>
<td height="13" colspan="3" bgcolor=#006699><div align=center><font color="#FFFFFF">您购买的商品清单</font></div></td>
</tr>
<form action="bag.jsp" name="form" method="post">
<%
String emp=request.getParameter("count");
if(emp==null)
{
if(session.getAttribute("count")==null)
{
String str=request.getParameter("shop");
String pce=request.getParameter("price");
String[] name=new String[1];
String[] price=new String[1];
name[0]=str;
price[0]=pce;
session.setAttribute("name0",name[0]);
session.setAttribute("price0",price[0]);
session.setAttribute("count","2");
out.print("<tr><td>"+name[0]+"</td><td>"+price[0]+"</td><td>");
out.print("<input type=hidden name=count value="+0+"><input type=submit name=submit value=删除></td></tr>");
}
else
{
String str=request.getParameter("shop");
String pce=request.getParameter("price");
int count=Integer.parseInt(session.getAttribute("count").toString());
String[] name=new String[count];
String[] price=new String[count];
name[count-1]=str;
price[count-1]=pce;
session.setAttribute("count",new Integer(count+1).toString());
for(int i=0;i<count-1;i++)
{
name[i]=session.getAttribute("name"+i).toString();
price[i]=session.getAttribute("price"+i).toString();
}
for (int j=0;j<count;j++)
{
session.setAttribute("name"+j,name[j]);
session.setAttribute("price"+j,price[j]);
out.print("<tr><td>"+name[j]+"</td><td>"+price[j]+"</td><td>");
out.print("<input type=hidden name=count value="+j+"><input type=submit name=submit value=删除></td></tr>");
}
}
}
else if(emp.equals("-1"))
{
if(session.getAttribute("count")==null)
{
out.print("<tr><td colspan=3>购物车已经是空的了</td></tr>");
}
else
{ int count=Integer.parseInt(session.getAttribute("count").toString());
for(int i=0;i<count;i++)
{
session.removeAttribute("name"+i);
}
session.removeAttribute("count");
out.print("<tr><td colspan=3>购物车清空的了</td></tr>");
}
}
else
{
int count=Integer.parseInt(session.getAttribute("count").toString())-2;
session.setAttribute("name"+emp,session.getAttribute("name"+count).toString());
session.setAttribute("price"+emp,session.getAttribute("price"+count).toString());
session.removeAttribute("name"+count);
session.removeAttribute("price"+count);
if(count==0)
{
session.removeAttribute("count");
out.print("<tr><td colspan=3>您的购物车上已经没有物品了</td></tr>");
}
else
{
session.setAttribute("count",new Integer(count+1).toString());
for(int i=0;i<count;i++)
{
out.print("<tr><td>"+session.getAttribute("name"+i)+"</td><td>"+session.getAttribute("price"+i)+"</td><td>");
out.print("<input type=hidden name=count value="+i+"><input type=submit name=submit value=删除></td></tr>");
}
}
}
%>
</form>
<tr>
<td width="90%"></td>
<td width="10%"> </td>
</tr>
<tr>
<td><div align=right><form name="1" action="bag.jsp" method="post"><input type="hidden" name="count" value="-1"><input name="提交" type="submit" class="input3" value=" 清空购物车" size="6" src="IMAGE/button.gif">
</div></form></td><td width="10%"><div align=left><form name="1" action="index1.jsp" method="post"><input name="提交" type="submit" class="input3" value=" 继续购买" size="6" src="IMAGE/button.gif">
</div></form></td>
</tr>
<tr>
<td colspan=7><div align=left><img src=IMAGE/0035.gif width=97 height=126></div></td>
</tr>
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