php+ajax实现无刷新分页

<?phpclass Pagination {  private $total; //数据表中总记录数  private $listRows; //每页显示行数  private $limit; //mysql 数据库的limit  private $uri; //分页信息前面的uri地址  private $pageNum; //页数  private $config = array('header' => "个记录", "prev" => "【上一页】", "next" => "【下一页】", "first" => "【首 页】", "last" => "【尾 页】");  private $listNum = 8;  /*   * $total 当前信息总条数   * $listRows 每页显示的条数   * $pa 下面的page    http://网址/index.php?page=5   */  public function __construct($total, $listRows = 10, $pa = "") {    $this->total = $total;    $this->listRows = $listRows;    $this->uri = $this->getUri($pa);    $this->page = !empty($_GET["page"]) ? $_GET["page"] : 1;//不传入page，则默认显示首页    $this->pageNum = ceil($this->total / $this->listRows);    $this->limit = $this->setLimit();  }  //设置每页显示的条数  private function setLimit() {    return "Limit " . ($this->page - 1) * $this->listRows . ", {$this->listRows}";  }  //获得URL地址  private function getUri($pa) {    $url = $_SERVER["REQUEST_URI"] . (strpos($_SERVER["REQUEST_URI"], '?') ? '' : "?") . $pa;    $parse = parse_url($url);    if (isset($parse["query"])) {      parse_str($parse['query'], $params);      unset($params["page"]);      $url = $parse['path'] . '?' . http_build_query($params);    }    return $url;  }  //魔术方法，  public function __get($args) {    if ($args == "limit")      return $this->limit;    else      return null;  }  //页面开始的条数  private function start() {    if ($this->total == 0)      return 0;    else      return ($this->page - 1) * $this->listRows + 1;  }  //页面结束的条数  private function end() {    return min($this->page * $this->listRows, $this->total);  }  /*设置首页*/  private function first() {    $html = "";    if ($this->page == 1)      $html.=' '.$this->config["first"].' ';    else      $html.=" <a href='javascript:void(0)' onclick='showPage(/"{$this->uri}&page=1/")'>{$this->config["first"]}</a> ";      //$html.=" <a href='{$this->uri}&page=1'>{$this->config["first"]}</a> ";    return $html;  }  /*设置上一页*/  private function prev() {    $html = "";    if ($this->page == 1)      $html.=' '.$this->config["prev"].' ';    else      $html.=" <a href='javascript:void(0)' onclick='showPage(/"{$this->uri}&page=" . ($this->page - 1) . "/")'>{$this->config["prev"]}</a> ";      //$html.=" <a href='{$this->uri}&page=".($this->page-1)."'>{$this->config["prev"]}</a> ";    return $html;  }  //页码列表【首页】【2】【3】…………【尾页】  private function pageList() {    $linkPage = "";    $inum = floor($this->listNum / 2);    for ($i = $inum; $i >= 1; $i--) {      $page = $this->page - $i;      if ($page < 1)        continue;      $linkPage.=" <a href='javascript:void(0)' onclick='showPage(/"{$this->uri}&page={$page}/")'>{$page}</a> ";    }    $linkPage.=" {$this->page} ";    for ($i = 1; $i <= $inum; $i++) {      $page = $this->page + $i;      if ($page <= $this->pageNum)        $linkPage.=" <a href='javascript:void(0)' onclick='showPage(/"{$this->uri}&page={$page}/")'>{$page}</a> ";      else        break;    }    return $linkPage;  }  /*设置下一页*/   private function next() {    $html = "";    if ($this->page == $this->pageNum)      $html.=' '.$this->config["next"].' ';    else      $html.=" <a href='javascript:void(0)' onclick='showPage(/"{$this->uri}&page=" . ($this->page + 1) . "/")'>{$this->config["next"]}</a> ";      //$html.=" <a href='{$this->uri}&page=".($this->page + 1)."'>{$this->config["next"]}</a> ";    return $html;  }  /*设置尾页*/  private function last() {    $html = "";    if ($this->page == $this->pageNum)      $html.=' '.$this->config["last"].' ';    else      $html.=" <a href='javascript:void(0)' onclick='showPage(/"{$this->uri}&page=" . ($this->pageNum) . "/")'>{$this->config["last"]}</a> ";      //$html.=" <a href='{$this->uri}&page=.(this->pageNum).'>{$this->config["last"]}</a> ";    return $html;  }  /*设置页面跳转*/  private function goPage() {    return     ' <input type="text" onkeydown="javascript:if(event.keyCode==13){var page=(this.value>' . $this->pageNum . ')?' . $this->pageNum . ':this.value;showPage(/'' . $this->uri . '&page=/'+page+/'/')}" value="' . $this->page . '" style="width:25px">    <input type="button" value="GO" onclick="javascript:var page=(this.previousSibling.value>' . $this->pageNum . ')?' . $this->pageNum . ':this.previousSibling.value;showPage(/'' . $this->uri . '&page=/'+page+/'/')"> ';  }  //页面列表配置选项  function fpage($display = array(0, 1, 2, 3, 4, 5, 6, 7, 8)) {    $html[0] = " 共有<b>{$this->total}</b>{$this->config["header"]} ";    $html[1] = " 每页显示<b>" . ($this->end() - $this->start() + 1) . "</b>条，本页<b>{$this->start()}-{$this->end()}</b>条 ";    $html[2] = " <b>{$this->page}/{$this->pageNum}</b>页 ";    $html[3] = $this->first();    $html[4] = $this->prev();    $html[5] = $this->pageList();    $html[6] = $this->next();    $html[7] = $this->last();    $html[8] = $this->goPage();    $fpage = '';    foreach ($display as $index) {      $fpage.=$html[$index];    }    return $fpage;  }}

<?php//链接数据库//获得具体信息//分页显示header("content-type:text/html;charset=utf-8");$link = mysql_connect('localhost','root','111111');mysql_select_db('shop', $link);mysql_query("set names utf8");$css = <<<eof<style type="text/css">  table {border:1px solid black; width:700px; margin:auto; border-collapse:collapse;}  td {border:1px solid black; }</style>eof;echo $css;echo "<table>  <tr><td>序号</td><td>名称</td><td>数量</td><td>价格</td><td>时间</td></tr>";//1 引入分页类include "./Pagination.php";//2. 获得信息总条数$sql = "select * from sw_goods";$qry = mysql_query($sql);$total = mysql_num_rows($qry);$per  = 7;//3. 实例化分页类对象$page_obj = new Pagination($total,$per);//4. 拼装sql语句，获得每页信息//利用page_obj实现limit的灵活设置//$page_obj -> limit;$sqla = "select * from sw_goods ".$page_obj->limit;$qrya = mysql_query($sqla);//5. 获得页面列表$pagelist = $page_obj -> fpage(array(3,4,5,6,7,8));$i=1;while($rsta = mysql_fetch_assoc($qrya)){  echo "<tr>";  echo "<td>".$i++."</td>";  echo "<td>".$rsta['goods_name']."</td>";  echo "<td>".$rsta['goods_number']."</td>";  echo "<td>".$rsta['goods_price']."</td>";  echo "<td>".date("Y-m-d H:i:s",$rsta['goods_create_time'])."</td>";  echo "</tr>";}echo "<tr><td colspan=5>".$pagelist."</td></tr>";echo "</table>";

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html>  <head>    <title>新建网页</title>    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />    <meta name="description" content="" />    <meta name="keywords" content="" />    <script type="text/javascript">//获得分页信息ajax函数function showPage(myurl){  var xhr = new XMLHttpRequest();  xhr.onreadystatechange = function(){    if(xhr.readyState==4){      var rst = document.getElementById("result");      rst.innerHTML = xhr.responseText;    }  }  xhr.open("get",myurl);  xhr.send(null);}window.onload = function(){  showPage("./data1.php"); //获得分页信息  //showPage("./data.php?page=2");}    </script>    <style type="text/css">    </style>  </head>  <body>    <h2>ajax无刷新分页效果</h2>    <div id="result"></div>  </body></html><script type="text/javascript">  document.write(new Date()+"<br />");  document.write(new Date()+"<br />");  document.write(new Date()+"<br />");  document.write(new Date()+"<br />");</script>