jsp实现购物程序_MySQL
时间:2021-07-01 10:21:17
帮助过:39人阅读
下面是我用JSP和数据库做的购物车的源程序:
注意:
1、重新计费部分还没有做好,大家自己动手吧!
2、下一版本将用session做。
//shop_cart.jsp
<%@ page contentType="text/html;charset=gb2312"%>
<%@ page session="true" %>
<%@ page language="java" import="java.sql.*" %>
<%
String product_type;
String action;
int product_id;
int curpage;
//商品类型
if (request.getParameter("product_type")==null){
product_type="all";
}else{
product_type=request.getParameter("product_type");
}
//页数和商品类型参数,可以在“继续购物”时返回到上次购物的页面
if (request.getParameter("curpage")==null){
curpage=1;
}else{
curpage=java.lang.Integer.parseInt(request.getParameter("curpage"));
}
//动作
if (request.getParameter("action")==null){
action="view";
}else{
action=request.getParameter("action");
}
//商品编号
if (request.getParameter("product_id")==null){
product_id=0;
}else{
product_id=java.lang.Integer.parseInt(request.getParameter("product_id"));
}
int bbb;
rs = bka.executeQuery(sql);
}
if (action.compareTo("delete")==0) {
sql="delete from shop_cart where cart_shop_id=" + shop_id + " and cart_guest_id='"
+ guest_name + "' and cart_product_id=" + product_id ;
rs = bka.executeQuery(sql);
}
%>