buy_it.jsp

来自「《jsp编程起步》里面的所有源代码」· JSP 代码 · 共 82 行

JSP
82
字号
<%@ page contentType="text/html; charset=gb2312" %>
<%@ page import = "java.util.*" %>
<%@ page import = "Bk.*" %>
<jsp:useBean id="dbbook" scope="page" class="Db.DbBook" />

<html>
<head>
<title>购物车</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<%
	float youshallpay=0;
%>
<body bgcolor="#FFFFFF" text="#000000">
<%!
Vector vBuy;
%>
<%
	Book book=(Book)session.getValue("CurrentBook");
	vBuy=(Vector)session.getValue("CurrentBuy");
		if(vBuy==null)
			vBuy=new Vector();
	if(book==null)return;	
	if(book.quantity<=0){
		out.println("对不起,本书库存量为0!请选择其它书籍。<br>");
		
		
	}else{
	
	
		vBuy.add(book);
		session.putValue("CurrentBuy",vBuy);
	}	

%>
<table width="100%" border=1>
  <tr>
	
	<td>
		<b>书名</b>
	</td>
	<td>
		<b>价格</b>
	</td>
	
	
</tr>
<%
	Enumeration eBook=vBuy.elements();
	youshallpay=0;
	while(eBook.hasMoreElements()){
		book=new Book();
		book=(Book)eBook.nextElement();
		youshallpay+=book.price;
%>
	<tr>
	<td>
		<%=book.name%>
	</td>
	<td>
		<%=book.price%>元
	</td>
	</tr>
<%
	}
%>
<tr>
	<td>	
		<div align=right>总计</a>
	</td>
	<td>
		<%=youshallpay%>元
	</td>
</tr>
</table>
<br>
<%
	
%>
<a href="javascript:window.close()">关闭</a>&nbsp&nbsp<a href="buy_done.jsp">结算</a>
</body>
</html>

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