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📄 listgood.jsp

📁 一个使用jdbc存储和调用大对象(比如图片等)的例子
💻 JSP
字号:
<%! 
ResultSet rs;
long rowCount,pageCount=0;
int pageSize =15;
String sql = null;
%>

<html>
<head>
<title>BBS</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" href="bbs.css">

<script language="javascript">
function openpage(pageurl) {
	var newwin = window.open(pageurl,'查看资料','toolbar=no,directories=no,status=no,width=300,height=200');
	return false;
}
</script>
</head>
<body bgcolor="#FFF9F0" topmargin="0">
<table width="606" border="0" cellspacing="0" cellpadding="0" align="center">
  <tr> 
    <td bgcolor="#FFFFFF" align="left" valign="top"><img src="../images/bbs_logo.gif" width="149" height="77"></td>
    <td bgcolor="#FFFFFF" align="center" valign="middle"><img src="../../sz/images/banner.gif" width="412" height="63"></td>
  </tr>
</table>
<%@ page language="java" import="java.sql.*" %>
<jsp:useBean id="OPDB" scope="page" class="database.OPDB" /> 

<%
OPDB.connection();
Connection conn = OPDB.getConn();
String boardid = request.getParameter("boardid");

//取版主资料
String boardname ="";
String boardmaster ="";
String masteremail ="";
sql = "select boardname,boardmaster,masteremail from t_board ";
sql += "where boardid = " + boardid;
rs = OPDB.select(conn,sql);

if(rs.next()) {
	boardname = OPDB.GBK(rs.getString("boardname"));
	boardmaster = OPDB.GBK(rs.getString("boardmaster"));
	masteremail = OPDB.GBK(rs.getString("masteremail"));
}	
rs.close();

//总记录数,总页数
sql = "select id from t_bbs where boardid = " + boardid  + " and good = 1";
rs = OPDB.select(conn,sql);
rowCount =OPDB.getRowcount();
rs.close();
	
if (rowCount % pageSize == 0) {
	pageCount = rowCount/pageSize;
} 
else {
	pageCount = rowCount/pageSize+1; 	
}

//分页的初始化
int pages = 1;
int intStart = 0;
int intEnd = 0;

if (request.getParameter("page") != null) {	
	pages = Integer.parseInt(request.getParameter("page"));
}
     
intStart = (pages - 1) * pageSize;
intEnd = pages * pageSize;

//显示导航条
%>

<table width="100%" border="1" bordercolor="#000000">
<tr bgcolor="#FF9900"> 
<td height="20" bordercolor="#FF9900"> 
<div align="center"><a href="list.jsp?boardid=<%= boardid %>">&gt;&gt;普通</a> 
<%
if (pages == 1) {
	out.print("首页");
	out.print(" 上页");
}
else {
	out.print("<a href=\"listgood.jsp?boardid="+boardid+"&page=1\">首页</a>");
	out.print(" <a href=\"listgood.jsp?boardid="+boardid+"&page="+(pages-1)+"\">上页</a>");
}

if (pages == pageCount) {
	out.print(" 下页");
	out.print(" 尾页");
}
else {
	out.print(" <a href=\"listgood.jsp?boardid="+boardid+"&page="+(pages+1)+"\">下页</a>");
	out.print(" <a href=\"listgood.jsp?boardid="+boardid+"&page="+pageCount+"\">尾页</a>");
}

out.print(" 页次:");
out.print(pages);
out.print("/"+pageCount+"页 共"+rowCount+"条记录 ");
%>
斑竹:<a href="mailto:<%= masteremail %>"><%= boardmaster %></a> 
         版面:<%= boardname %> <a href="listgood.jsp?boardid=<%= boardid %>&page=<%= pages %>">&lt;&lt;刷新</a></div>
</td>
</tr>
</table>

<%
//显示论坛
sql = "select id,face,type,txtlong,name,topic,lasttime from v_bbs_good ";
sql += "where boardid = " + boardid  + " and good = 1 and id not in (";
sql += "select id from v_bbs_good where rownum <= " + intStart;
sql += " and boardid = " + boardid + " and good = 1) and id in (";
sql += "select id from v_bbs_good where rownum <= " + intEnd;
sql += " and boardid = " + boardid + " and good = 1) order by lasttime desc";

ResultSet rs1 = OPDB.select(conn,sql);

//初始化变量
String id = "";
String face = "";
String type = "";
String txtlong = "";
String name = "";
String topic = "";
String lasttime = "";
boolean firstboard = true;

while (rs1.next()) {
	firstboard = false;
	id = rs1.getString("id");
	face = rs1.getString("face");	
	type = OPDB.GBK(rs1.getString("type"));
	txtlong = rs1.getString("txtlong");
	name = OPDB.GBK(rs1.getString("name").trim());	
	topic = OPDB.GBK(rs1.getString("topic").trim());
	lasttime = rs1.getString("lasttime");			
	//设置显示的每行内容	
	%>
	<table border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><img src="images/mod<%= face %>.gif">&nbsp;</td>
	<td><a href="showgood.jsp?boardid=<%= boardid %>&id=<%= id %>" target="boardAnnounce">
	<%= topic %></a> [<%= type %>]-< <%= txtlong %> 字节> 
	<% if (!name.equals("过客")) { %><a href="userdetail.jsp?name=<%= name %>" onclick="return openpage(this.href);"><%= name %></a>
	<% } else out.print("<font color='#0000cc'>"+name+"</font>");%> 【<%= lasttime %> ID:<%= id %>】</td></tr></table>
	<%
}

rs1.close();

//没有帖子
if (firstboard) {
	%>
	<p>这个版的精华区还没有帖子,返回<a href="javascript:history.back();">普通版</a></p>
	<%
}

%>

</body>
</html>

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