日期:2014-05-16  浏览次数:20414 次

jsp学习笔记(7)
cart.jsp 代码<%@ page language="java" contentType="text/html; charset=gb2312"
	pageEncoding="gb2312"%>
	<%@ page import="bean.*" %>
	<%@ page import="java.util.*" %>
	<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 	"http://www.w3.org/TR/html4/loose.dtd">
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
	<title>购物车</title>
	<script type="text/javascript">
	<!--
		function Ok(){
		return true;//返回true模态窗口关闭;返回false模态窗口不关闭;
		}
		function update(id,i)
		{
			form1.action="/OnlineShop/servlet/ShoppingServlet?method=update
			&bookId="+id;
			form1.submit();
		}
	</script>
	<%
		String error = (String)request.getAttribute("error");
		String nulls = (String)request.getAttribute("null");
		String ok = (String)request.getAttribute("ok");
		if(error != null && error.equals("1")){
	%>
		<script>alert('您的购物数量大于库存了!')</script><%
		}
	if(nulls != null && nulls.equals("1")){
	%>
	<script>alert('您的购物车中没有商品!')</script><%
	}
	if(ok != null && ok.equals("1")){
	%>
	<script>alert('恭喜您,购物成功!')</script><%
	}
	%>
	</head>
	<body style="margin:0px;padding:0px;">
	<form name="form1" action="" method="post">
	<table bgcolor="#006666" border="0" cellpadding="1" cellspacing="1" align="center" 
		width="620">
		<tr bgcolor="#996600">
			<td align="center" valign="middle">商品名称</td>
			<td align="center" valign="middle">单价 (会员)</td>
			<td align="center" valign="middle">数量</td>
			<td align="center" valign="middle">总价</td>
			<td align="center" valign="middle">修改数量</td>
			<td align="center" valign="middle">删除</td>
	</tr>
		<%
		Cart cart = (Cart)session.getAttribute("cart");
		if(cart == null ){
		%>
		<tr bgcolor="#fff9ec"><td colspan="6" align="center" valign="middle"><font size="1" 
			color="red">购物车中一件商品也没有!</font></td></tr>
		<%}else{
			ArrayList<CartItem> al = cart.getCart();
			Iterator<CartItem> it = al.iterator();
			while(it.hasNext()){
				CartItem cartItem = it.next();
		%>
		<tr bgcolor="#fff9ec">
			<td valign="middle" align="center"><%=cartItem.getName()%></td>
			<td valign="middle" align="center"><%=cartItem.getPrice()%>元</td>
			<td valign="middle" align="center"><input class="input1" type="text" 
			value="<%=cartItem.getQuantity()%>" name="updateBookQuantity<%=
			cartItem.getId() %>"></input></td>
			<td valign="middle" align="center"><%=cartItem.totalPrice()%>元</td>
			<td align="center" valign="middle">
			<input type="button" value="修改数量" onclick="update(<%=
			cartItem.getId()%>)"  style="background-image:url(../images/btn_03.jpg)"/></td>
			<td align="center" valign="middle">
			<a href="/OnlineShop/servlet/ShoppingServlet?method=delete&
			bookId=<%=cartItem.getId() %>">
            <img src="../images/trash.gif" border="0" height="17" width="15" alt="">
          	</a>
			</td>
		</tr>
		<%}%>
		<tr bgcolor="#fff9ec">
			<td colspan="6" align="center">购物车里有商品:<%=cart.getTotalQuantity()%>		件共计:<%=cart.getTotalMoney()%>元 </td>
		</tr>
		<%}%>
		<tr bgcolor="#ffffff">
			<td colspan="6" align="center">
				
		        <a href="/OnlineShop/servlet/ShoppingServlet?method=removeAll">
		          <img alt="" src="../images/cart02.gif" border=0/>
		        </a>
		        <a href="/OnlineShop/servlet/ReckoningServlet">
		          <img alt="" src="../images/cart03.gif" border=0/>
		        </a>
	      </td>
		</tr>
		<tr><td colspan="6"vali