📄 buy_it.jsp
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<%@ page contentType="text/html; charset=gb2312" %>
<%@ page import = "java.util.*" %>
<%@ page import = "Bk.*" %>
<jsp:useBean id="dbbook" scope="page" class="Db.DbBook" />
<html>
<head>
<title>购物车</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<%
float youshallpay=0;
%>
<body bgcolor="#FFFFFF" text="#000000">
<%!
Vector vBuy;
%>
<%
Book book=(Book)session.getValue("CurrentBook");
vBuy=(Vector)session.getValue("CurrentBuy");
if(vBuy==null)
vBuy=new Vector();
if(book==null)return;
if(book.quantity<=0){
out.println("对不起，本书库存量为0！请选择其它书籍。<br>");
}else{
vBuy.add(book);
session.putValue("CurrentBuy",vBuy);
}
%>
<table width="100%" border=1>
<tr>
<td>
<b>书名</b>
</td>
<td>
<b>价格</b>
</td>
</tr>
<%
Enumeration eBook=vBuy.elements();
youshallpay=0;
while(eBook.hasMoreElements()){
book=new Book();
book=(Book)eBook.nextElement();
youshallpay+=book.price;
%>
<tr>
<td>
<%=book.name%>
</td>
<td>
<%=book.price%>元
</td>
</tr>
<%
}
%>
<tr>
<td>
<div align=right>总计</a>
</td>
<td>
<%=youshallpay%>元
</td>
</tr>
</table>
<br>
<%
%>
<a href="javascript:window.close()">关闭</a>  <a href="buy_done.jsp">结算</a>
</body>
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