📄 clear.jsp
字号:
<%@ page contentType="text/html; charset=gb2312" language="java"
import="java.sql.*"%>
<%@ page import="cart.buyList"%>
<%@ page import="java.util.Vector"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>修改数量</title>
</head>
<body>
<%
Vector shop = (Vector) session.getAttribute("shop");
Vector newshop = new Vector();
for (int i = 0; i < shop.size(); i++) {
String number = request.getParameter("num" + i);
if (number.equals("")) {
out
.println("<script language='javascript'>alert('数量不能为空');history.back();</script>");
}
buyList mylist = (buyList) shop.elementAt(i);
String num = request.getParameter("num" + i);
int newnum = Integer.parseInt(num);
mylist.number = newnum;
if (newnum != 0) {
newshop.addElement(mylist);
}
}
session.setAttribute("shop", newshop);
%>
<script language="javascript">
alert("修改成功");
window.location.href="cart.jsp";
</script>
</body>
</html>
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