account_book.jsp

来自「网站的实例」· JSP 代码 · 共 58 行

JSP
58
字号
<html>
<head>
<title>账目管理</title>
<meta http-equiv="Content-Type" content="text/html; charset=GB2312">
<link href="../css/css1.css" rel="stylesheet" type="text/css">
</head>

<body bgcolor="#FFFFFF" text="#000000">
<div align="center" class="title">账目管理 </div>
<p><a href="admin.jsp" class="link">返回管理中心</a></p>
<p><a href="account.jsp" class="link">返回账目管理</a></p> 
<p>
<%@ include file="data.jsp"%>
<%@ include file="adm_login.jsp"%> 
<jsp:useBean id="today" class="ebs.dateTransfer" scope="page"/>
<%
String bookid=request.getParameter("bookid");
String date=today.strYear()+"-"+today.strMonth()+"-"+today.strDay();

float total,per; 
total=0;
per=0;
int I=0,sumall=0;

String sql="SELECT * FROM inbook WHERE book_id="+bookid;

Rst=Stmt.executeQuery(sql);
while(Rst.next())
  {
  	I++; 		
  	int sum=Rst.getInt("in_sum"); 
  	float price=Rst.getFloat("in_price");
  	sumall=sumall+sum; 
  	total=total+sum*price;
} 
per=total/sumall;
Rst.close();
Stmt.close();
Conn.close();
%>
</p>
<p>这本书的现有平均成本:</p>
<table width="75%" border="1" align="center" cellpadding="0" cellspacing="0"> 
<tr>
    <td>日期</td>
    <td>图书ID</td>
    <td>书价</td>
  </tr>
  <tr>
    <td><%=date%></td>
    <td><%=bookid%></td>
    <td><%=per%></td>
  </tr>
</table>
<p>&nbsp;</p> 
</body>
</html>

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