forked from maxliaops/Java_Web_Examples
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathcart_add.jsp
More file actions
42 lines (41 loc) · 1.18 KB
/
cart_add.jsp
File metadata and controls
42 lines (41 loc) · 1.18 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<%@ page import="java.util.Vector"%>
<%@ page import="com.model.Goodselement"%>
<jsp:useBean id="conn" scope="page" class="com.tools.ConnDB"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>Ìí¼Ó¹ºÎï³µ</title>
</head>
<body>
<%
int ID=Integer.parseInt(request.getParameter("goodsID"));
String sql="select * from tb_goods where ID="+ID;
ResultSet rs=conn.executeQuery(sql);
float nowprice=0;
if(rs.next()){
nowprice=rs.getFloat("nowprice");
}
Goodselement mygoodselement=new Goodselement();
mygoodselement.ID=ID;
mygoodselement.nowprice=nowprice;
mygoodselement.number=1;
boolean Flag=true;
Vector cart=(Vector)session.getAttribute("cart");
if(cart==null){
cart=new Vector();
}else{
for(int i=0;i<cart.size();i++){
Goodselement goodsitem=(Goodselement)cart.elementAt(i);
if(goodsitem.ID==mygoodselement.ID){
goodsitem.number++;
cart.setElementAt(goodsitem,i);
Flag=false;
}
}
}
if(Flag)cart.addElement(mygoodselement);
session.setAttribute("cart",cart);
conn.close();
response.sendRedirect("cart_see.jsp");
%>