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 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="jsp学习札记（7）"> </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="jsp学习札记（7）" src="../images/cart02.gif" border=0/> </a> <a href="/OnlineShop/servlet/ReckoningServlet"> <img alt="jsp学习札记（7）" src="../images/cart03.gif" border=0/> </a> </td></tr><tr><td colspan="6"valign="middle"><font color="red">*</font>如果您刷新了购物车页面，上次购买的商品数目将会增加1个</br><font color="red">*</font>如果您点击了收银台，商城将会保存您的订单，并会清空您的购物车！</td></tr></table></form></body></html>