jsp分页源程序

pageCount = (int)Math.ceil((recordCount + countPerPage-1) / countPerPage);//算出总页数
if(request.getParameter("pages") == null){

pages = 1;
}else{
pages = new Integer(request.getParameter("pages")).intValue();
}

if(pages > pageCount){
nowPages = 1;
}else{
nowPages = pages;
}

ResultSet rs = tmessgeBean.executeQuery("Select top "+ countPerPage +" * from dysf_teacher where id not in (select top "+ (nowPages-1)*countPerPage +" id from dysf_teacher order by id desc) order by id desc ");
while(rs.next()){
String ID = rs.getString("id");
String tdepartment = rs.getString("department");
String tspecial = rs.getString("special");
String tname = rs.getString("name");
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