Applet

开发平台：
Java

purchase.jsp：源码内容
							<%@ page contentType="text/html; charset=gb2312" %>
<%@ page session="true" %>
<%@ page import="MyFly.Book.Books" %>
<jsp:useBean id="book" scope="page" class="MyFly.Book.bookmn" />
<jsp:useBean id="shop" scope="page" class="MyFly.Book.Purchase"/>
<%
String mesg = "";
String submits = request.getParameter("Submit");
String Id="";
if (submits!=null && !submits.equals("")){
	if (shop.addnew(request)){
		mesg = "你要的图书已经放入你的购物车中！谢谢";
	} else if (shop.getIsEmpty()){
		mesg = "库存图书数量不足！只剩"+shop.getLeaveBook()+"本";//查看书的数目
	} else {
		mesg = "暂时不能购买！";
	}
}else {
	if (request.getParameter("bookid")==null || request.getParameter("bookid").equals("")) {
			mesg = "你要购买的图书不存在！";
	} else {
		try {
		 Id = request.getParameter("bookid");
			if (!book.getOnebook(Id)){
				mesg = "你要购买的图书不存在！";
			}
			}
		 catch (Exception e){
			mesg = "你要购买的图书不存在！";
		}
	}
}
%>
<html>
<head>
<title>电子书店　购买图书</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script language="javascript">
function openScript(url,name, width, height){
	var Win = window.open(url,name,'width=' + width + ',height=' + height + ',resizable=0,scrollbars=no,menubar=no,status=no' );
}
function check()
{
	if (document.form1.amount.value<1){
		alert("你的购买数量有问题");
		document.form1.amount.focus();
		//document.form1.amount.
		return false;
	}
	return true;
}
</script>
<link rel="stylesheet" href="books.css" type="text/css">
</head>
<body bgcolor="#FFCC99" text="#000000" onload="javascript:window.focus();">
<div align="center">
  <% if(!mesg.equals("")){
		out.println(mesg);
	  } else {
		Books bk = (Books) book.getBooklist().elementAt(0);			  
	%>
  <table width="90%" border="0" cellspacing="2" cellpadding="1">
    <form name="form1" method="post" action="purchase.jsp">
      <tr> 
        <td align="center">图书名：<%= bk.getProductName() %></td>
      </tr>
      <tr align="center"> 
        <td>你想要的数量： 
          <input name="amount" type="text" value="1" size="3"> 
          本</td>
      </tr>
      <tr align="center"> 
        <td>
		  <input type="hidden" name="bookid" value="<%=Id %>">
          <input type="submit" name="Submit" value="购 买" onclick="return(check());">
          <input type="reset" name="Reset" value="取 消">
        </td>
      </tr>
	   <tr align="center"> 
        <td>&nbsp;</td>
      </tr>
    </form>
	
  </table>
<% } %>
  <br>
  <p><a href="javascript:window.close()">关闭窗口</a></p>
  <table width="100%" border="0" cellspacing="2" cellpadding="2">
    <tr>
      <td align="center">星海公司开发<br>
        CopyRight@2003 <br>
        Email:<a href="mailto:pz990@163.net">pz990@163.net</a></td>
    </tr>
  </table>
</div>
</body>
</html>

						