📄 add.jsp
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<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<%@ page import="java.util.Vector"%>
<%@ page import="com.Str"%>
<%@ page import="bookInfo.*"%>
<%@ page import="cart.*"%>
<%Str chr=new Str(); %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>添加购物车</title>
</head>
<body>
<%
//某一类别的图书的书名和价格
float price=Float.parseFloat(request.getParameter("price"));
String bookTitle=chr.toChinese(request.getParameter("bookTitle"));
//把图书放进购物车
CartItem mylist=new CartItem();
BookInfo bk=new BookInfo();
bk.setBookTitle(bookTitle);
bk.setPrice(price);
mylist.setProduct(bk);
mylist.setCount(1);
boolean listFlag=true;
Vector shop=(Vector)session.getAttribute("shop");
if(shop==null){
shop=new Vector();
}
else{
for(int i=0;i<shop.size();i++){
CartItem list=(CartItem)shop.elementAt(i);
if(list.getProduct().getBookTitle()==mylist.getProduct().getBookTitle()){
int gc=list.getCount();
gc++;
shop.setElementAt(list,i);
listFlag=false;
}
}
}
if(listFlag)shop.addElement(mylist);
session.setAttribute("shop",shop);
%>
<script language="javascript">
alert("商品已成功添加到购物车");
window.location.href="order.jsp";
</script>
</body>
</html>
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