📄 placard_select.jsp
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<%@ page contentType="text/html; charset=gb2312" %>
<%@ page import="java.sql.*"%>
<jsp:useBean id="connection" scope="page" class="com.wy.JDBConnection"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" href="../CSS/style.css">
<title>
placard page
</title>
</head>
<%!
ResultSet rs=null;
String sql;
int code;
int pagesize=10;
int rowcount=0;
int pagecount=1;
%>
<body bgcolor="#ffffff"><jsp:include page="mtop.jsp"/>
<table width="785" height="117" border="1" align="center" cellpadding="0" cellspacing="0" bordercolor="#FFFFFF" bordercolordark="#333333" bordercolorlight="#FFFFFF">
<tr>
<td height="38" align="center" colspan="5">网站公告信息</td>
</tr>
<tr>
<td height="29" align="right" colspan="5">
<a href="placard_add.jsp">发布公告信息</a></td>
</tr>
<tr>
<td width="95" height="29" align="center">ID</td>
<td width="186" height="29" align="center">标题</td>
<td width="204" height="29" align="center">作者</td>
<td width="158" height="29" align="center">发布日期</td>
<td width="134" height="29" align="center">修改操作</td>
</tr>
<%
sql="select ID,Title,Author,IssueDate from tb_Placard ";
try
{
rs=connection.executeQuery(sql);
if(!rs.next())
{
%>
<script language="javascript">
alert("没有公共信息");
history.back();
</script>
<%
}else
{
rs.last();
rowcount=rs.getRow();
int showpage=1;
pagecount=((rowcount%pagesize)==0?(rowcount/pagesize):(rowcount/pagesize)+1);
String topage=request.getParameter("topage");
if(topage!=null)
{
showpage=Integer.parseInt(topage);
if(showpage>pagecount){
showpage=pagecount;
}else if(showpage<=0){
showpage=1;
}
}
rs.absolute((showpage-1)*pagesize+1);
for(int i=1;i<=pagesize;i++)
{
code=rs.getInt("ID");
%>
<tr>
<td width="95" height="32" align="center"><%=code%></td>
<td width="186" height="32" align="center"><%=rs.getString("Title")%></td>
<td width="204" height="32" align="center"><%=rs.getString("Author")%></td>
<td width="158" height="32" align="center"><%=rs.getDate("IssueDate")%></td>
<td height="32" align="center">
<a href="placard_change.jsp?id=<%=code%>">修改</a>
<a href="placard_delete.jsp?id=<%=code%>">删除</a></td>
</tr>
<%
if(!rs.next())
break;
}
%>
<tr>
<td height="30" colspan="8" align="right">
<table width="786" align="center">
<tr>
<td width="786" height="30" colspan="9" align="right">
共<%=pagecount%>页
<a href="placard_select.jsp?topage=<%=1%>">第一页</a>
<a href="placard_select.jsp?topage=<%=showpage-1%>">上一页</a>
<a href="placard_select.jsp?topage=<%=showpage+1%>">下一页</a>
<a href="placard_select.jsp?topage=<%=pagecount%>">最后一页</a>
</td>
</tr>
</table>
</td>
</tr>
<%
}
}catch(Exception e)
{e.printStackTrace();}
%>
</table>
<jsp:include page="down.jsp"/>
</body>
</html>
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