📄 viewcart.jsp
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<%@ page language="java" session="true" pageEncoding="GBK"%>
<%@ page import="java.util.*,bean.*,java.text.*"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'viewCart.jsp' starting page</title>
<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 rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<table align="center">
<tr>
<td>
<%
Map cart = (Map) session.getAttribute("cart");
if (cart == null || cart.size() == 0) {
out.println("<p>购物车当前为空</p>");
} else {
%>
<table border="1" align="center">
<thead>
<tr align="center">
<th>
名称
</th>
<th>
数量
</th>
<th>
价格
</th>
<th>
小计
</th>
</tr>
</thead>
<%
Set cartItems = cart.keySet();
Object[] isbn = cartItems.toArray();
double total = 0, price, subtotal;
int quantity;
for (int i = 0; i < isbn.length; i++) {
CartItemBean cartBean = (CartItemBean) cart
.get((String) isbn[i]);
BookBean book = cartBean.getBook();
quantity = cartBean.getQuantity();
price = book.getPrice();
subtotal = price * quantity;
total += subtotal;
%>
<tr>
<td>
<%=book.getTitle()%>
</td>
<td>
<%=quantity%>
</td>
<td>
<%=new DecimalFormat("0.00").format(price)%>
</td>
<td>
<%=new DecimalFormat("0.00").format(subtotal)%>
</td>
</tr>
<%
}
%>
<tr>
<td colspan="4" align="right">
<b>总计：</b>
<%=new DecimalFormat("0.00").format(total)%>
</td>
</tr>
</table>
<%
session.setAttribute("total", new Double(total));
}
%>
<p>
<a href="chJsp/books.jsp">继续购物</a>
</p>
<form method="get" action="chJsp/order.jsp">
<p>
<input type="submit" value="结 帐">
</p>
</form>
</td>
</tr>
</table>
</body>
</html>
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