set_number.jsp

一个简单的网上商店系统

<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="Servlet.goods_cartservlet"%>
<%@ page import="JavaBean.Goods"%>
<%@ page import="JavaBean.DB_goods" %>
<%@ page import="java.io.*"%>
<%@ page import="java.lang.*"%>
<%@ page import="java.util.Vector"%>
<%@page import="JavaBean.DB_goods;"%>
<%@ include file="public.jsp" %>

<%
//接收goods_list.jsp页面中隐藏域传递过来的值
DB_goods dbg=new DB_goods();
String id=request.getParameter("goods_id");
String name=dbg.getStr((String)request.getParameter("goods_name"));
String price=(String)request.getParameter("goods_price");
String discount=(String)request.getParameter("goods_discount");

//把字符串类型数据转换为整数
int goods_id=Integer.parseInt(id);
//把字符串类型数据转换为浮点型
float goods_price=Double.valueOf(price).floatValue();
float goods_discount=Double.valueOf(discount).floatValue();
%>

      <table align=center border=1 cellspacing=0>
      <tr><td align=center>商品名称</td><td align=center>商品价格</td>
      <td align=center>商品折扣率</td><td align=center>订购数量</td><tr>
<%    
            out.print("<tr><td align=center>"+name+"</td>");
            out.print("<td align=center>"+goods_price+"</td>");
            out.print("<td align=center>"+goods_discount+"</td>");
            
            /*设置商品的数量，并把数据传到Servlet中予以处理，/goods_cart为
            Servlet的URI映射，用户通过这个映射来访问Servlet*/
            out.print("<td><form action='./goods_cart' method='post'>");
            out.print("<input type=text name='number' size=25 ></td></tr>");
            out.print("<input type=hidden name='goods_id'  value="+goods_id+">");
            out.print("<input type=hidden name='goods_name' value="+name+">");
            out.print("<input type=hidden name='action' value='add'>");
            out.print("</td></tr>");
       
out.print("</table>");
out.print("<table align=center border=0>");
out.print("<tr><td align=center><input type=submit name=sm value='提交数据'><td>");
out.print("<td align=center><input type=reset name=rs value='重新填写'></td></tr>");
out.print("</form>");
out.print("</table>");
out.print("<table align=center width=420>");
//链接到goods_list.jsp页面，继续购物
out.print("<tr><td align=center><a href='goods_list.jsp'>继续购物</a>");
//链接到goods_show.jsp页面，查看购物车信息
out.print("&nbsp &nbsp <a href='goods_show.jsp'>查看购物车</a></td></tr>");
out.print("</table>");
%>