jsp分页

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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<%
//连接字符串
Class.forName("org.gjt.mm.mysql.Driver");
Connection connection=DriverManager.getConnection("jdbc:mysql://localhost:3306/sms","sms","sms");
Statement statement = connection.createStatement();
LinuxMySql lm = new LinuxMySql();

//每页显示记录数
int PageSize = 8;
int StartRow = 0; //开始显示记录的编号
int PageNo=0;//需要显示的页数
int CounterStart=0;//每页页码的初始值
int CounterEnd=0;//显示页码的最大值
int RecordCount=0;//总记录数;
int MaxPage=0;//总页数
int PrevStart=0;//前一页
int NextPage=0;//下一页
int LastRec=0;
int LastStartRecord=0;//最后一页开始显示记录的编号

//获取需要显示的页数，由用户提交
if(request.getParameter("PageNo")==null){ //如果为空，则表示第1页
  if(StartRow == 0){
     PageNo = StartRow + 1; //设定为1
  }
}else{
  PageNo = Integer.parseInt(request.getParameter("PageNo")); //获得用户提交的页数
  StartRow = (PageNo - 1) * PageSize; //获得开始显示的记录编号
}

//因为显示页码的数量是动态变化的，假如总共有一百页，则不可能同时显示100个链接。而是根据当前的页数显示
//一定数量的页面链接

//设置显示页码的初始值!!
  if(PageNo % PageSize == 0){
   CounterStart = PageNo - (PageSize - 1);
  }else{
   CounterStart = PageNo - (PageNo % PageSize) + 1;
  }

CounterEnd = CounterStart + (PageSize - 1);
%>

<html>
<head>
<title>分页显示记录</title>
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<%

//获取总记录数
ResultSet rs = statement.executeQuery("select count(*) from sm_asend" );
rs.next();
RecordCount = rs.getInt(1);

rs = statement.executeQuery("SELECT sm_da,sm_st,sm_ud FROM sm_asend ORDER BY sm_no DESC LIMIT "
       +StartRow+", "+PageSize);

//获取总页数
MaxPage = RecordCount % PageSize;
if(RecordCount % PageSize == 0){
  MaxPage = RecordCount / PageSize;
}else{
   MaxPage = RecordCount/PageSize+1;
}
%>
<body class="UsePageBg">
<table width="100%" border="0" class="InternalHeader">
<tr>
   <td width="24%"><font size=4>分页显示记录</font></td>
    <td width="76%">
       <font size=4><%="总共"+RecordCount+"条记录 - 当前页："+PageNo+"/"+MaxPage %></font>
    </td>
</tr>
</table>

<br>
<table width="100%" border="0" class="NormalTableTwo">
  <tr>
    <td class="InternalHeader" >对方电话</td>
    <td class="InternalHeader" >发送日期</td>
    <td class="InternalHeader" >发送内容</td>

  </tr>

<%
int i = 1;
while (rs.next()) {
%>
<tr>
    <td class="NormalFieldTwo" ><%=lm.split86(rs.getString(1))%></td>
    <td class="NormalFieldTwo" ><%=lm.dateLog(rs.getString(2))%></td>
    <td class="NormalFieldTwo" ><%=lm.unicode2String(rs.getString(3))%></td>

  </tr>
<%
  i++;
}%>
</table>
<br>
<table width="100%" border="0" class="InternalHeader">
  <tr>
   <td><div align="center">
<%
   out.print("<font size=4>");
  //显示第一页或者前一页的链接
  //如果当前页不是第1页，则显示第一页和前一页的链接
  if(PageNo != 1){
    PrevStart = PageNo - 1;
    out.print("<a href=fenye.jsp?PageNo=1>第一页 </a>: ");
    out.print("<a href=fenye.jsp?PageNo="+PrevStart+">前一页</a>");
  }
  out.print("[");

   //打印需要显示的页码
   for(int c=CounterStart;c<=CounterEnd;c++){
   if(c <MaxPage){
     if(c == PageNo){
       if(c %PageSize == 0){
         out.print(c);
       }else{
          out.print(c+" ,");
       }
     }else if(c % PageSize == 0){
        out.print("<a href=fenye.jsp?PageNo="+c+">"+c+"</a>");
     }else{
        out.print("<a href=fenye.jsp?PageNo="+c+">"+c+"</a> ,");
     }
   }else{
     if(PageNo == MaxPage){
      out.print(c);
      break;
     }else{
        out.print("<a href=fenye.jsp?PageNo="+c+">"+c+"</a>");
     break;
   }
  }
}

out.print("]");;

if(PageNo < MaxPage){ //如果当前页不是最后一页，则显示下一页链接
    NextPage = PageNo + 1;
    out.print("<a href=fenye.jsp?PageNo="+NextPage+">下一页</a>");
}

//同时如果当前页不是最后一页，要显示最后一页的链接
if(PageNo < MaxPage){
   LastRec = RecordCount % PageSize;
   if(LastRec == 0){
      LastStartRecord = RecordCount - PageSize;
   }
   else{
      LastStartRecord = RecordCount - LastRec;
   }

   out.print(":");
    out.print("<a href=fenye.jsp?PageNo="+MaxPage+">最后一页</a>");
  }
  out.print("</font>");
%>
</div>
</td>
</tr>
</table>
<%
  rs.close();
  statement.close();
  connection.close();
%>
</body>
</html>