How to implement refresh-free paging using ajax in Thinkphp

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id: Page.class.php 2712 2012-02-06 10:12:49Z liu21st $
class AjaxPage {
// 分页栏每页显示的页数
public $rollPage = 5;
// 页数跳转时要带的参数
public $parameter ;
// 默认列表每页显示行数
public $listRows = 20;
// 起始行数
public $firstRow ;
// 分页总页面数
protected $totalPages ;
// 总行数
protected $totalRows ;
// 当前页数
protected $nowPage ;
// 分页的栏的总页数
protected $coolPages ;
// 分页显示定制
protected $config = array(&#39;header&#39;=>&#39;条记录&#39;,&#39;prev&#39;=>&#39;上一页&#39;,&#39;next&#39;=>&#39;下一页&#39;,&#39;first&#39;=>&#39;第一页&#39;,&#39;last&#39;=>&#39;最后一页&#39;,&#39;theme&#39;=>&#39; %totalRow% %header% %nowPage%/%totalPage% 页 %upPage% %downPage% %first% %prePage% %linkPage% %nextPage% %end%&#39;);
// 默认分页变量名
protected $varPage;
public function __construct($totalRows,$listRows=&#39;&#39;,$ajax_func,$parameter=&#39;&#39;) {
$this->totalRows = $totalRows;
$this->ajax_func = $ajax_func;
$this->parameter = $parameter;
$this->varPage = C(&#39;VAR_PAGE&#39;) ? C(&#39;VAR_PAGE&#39;) : &#39;p&#39; ;
if(!empty($listRows)) {
$this->listRows = intval($listRows);
}
$this->totalPages = ceil($this->totalRows/$this->listRows); //总页数
$this->coolPages = ceil($this->totalPages/$this->rollPage);
$this->nowPage = !empty($_GET[$this->varPage])?intval($_GET[$this->varPage]):1;
if(!empty($this->totalPages) && $this->nowPage>$this->totalPages) {
$this->nowPage = $this->totalPages;
}
$this->firstRow = $this->listRows*($this->nowPage-1);
}
public function setConfig($name,$value) {
if(isset($this->config[$name])) {
$this->config[$name] = $value;
}
}
public function show() {
if(0 == $this->totalRows) return &#39;&#39;;
$p = $this->varPage;
$nowCoolPage = ceil($this->nowPage/$this->rollPage);
$url = $_SERVER[&#39;REQUEST_URI&#39;].(strpos($_SERVER[&#39;REQUEST_URI&#39;],&#39;?&#39;)?&#39;&#39;:"?").$this->parameter;
$parse = parse_url($url);
if(isset($parse[&#39;query&#39;])) {
parse_str($parse[&#39;query&#39;],$params);
unset($params[$p]);
$url = $parse[&#39;path&#39;].&#39;?&#39;.http_build_query($params);
}
//上下翻页字符串
$upRow = $this->nowPage-1;
$downRow = $this->nowPage+1;
if ($upRow>0){
$upPage="<a id=&#39;big&#39; href=&#39;javascript:".$this->ajax_func."(".$upRow.")&#39;>".$this->config[&#39;prev&#39;]."</a>";
}else{
$upPage="";
}
if ($downRow <= $this->totalPages){
$downPage="<a id=&#39;big&#39; href=&#39;javascript:".$this->ajax_func."(".$downRow.")&#39;>".$this->config[&#39;next&#39;]."</a>";
}else{
$downPage="";
}
// << < > >>
if($nowCoolPage == 1){
$theFirst = "";
$prePage = "";
}else{
$preRow = $this->nowPage-$this->rollPage;
$prePage = "<a id=&#39;big&#39; href=&#39;javascript:".$this->ajax_func."(".$preRow.")&#39;>上".$this->rollPage."页</a>";
$theFirst = "<a id=&#39;big&#39; href=&#39;javascript:".$this->ajax_func."(1)&#39; >".$this->config[&#39;first&#39;]."</a>";
}
if($nowCoolPage == $this->coolPages){
$nextPage = "";
$theEnd="";
}else{
$nextRow = $this->nowPage+$this->rollPage;
$theEndRow = $this->totalPages;
$nextPage = "<a id=&#39;big&#39; href=&#39;javascript:".$this->ajax_func."(".$nextRow.")&#39; >下".$this->rollPage."页</a>";
$theEnd = "<a id=&#39;big&#39; href=&#39;javascript:".$this->ajax_func."(".$theEndRow.")&#39; >".$this->config[&#39;last&#39;]."</a>";
}
// 1 2 3 4 5
$linkPage = "";
for($i=1;$i<=$this->rollPage;$i++){
$page=($nowCoolPage-1)*$this->rollPage+$i;
if($page!=$this->nowPage){
if($page<=$this->totalPages){
$linkPage .= " <a id=&#39;big&#39; href=&#39;javascript:".$this->ajax_func."(".$page.")&#39;> ".$page." </a>";
}else{
break;
}
}else{
if($this->totalPages != 1){
$linkPage .= " <span class=&#39;current&#39;>".$page."</span>";
}
}
}
$pageStr = str_replace(
array(&#39;%header%&#39;,&#39;%nowPage%&#39;,&#39;%totalRow%&#39;,&#39;%totalPage%&#39;,&#39;%upPage%&#39;,&#39;%downPage%&#39;,&#39;%first%&#39;,&#39;%prePage%&#39;,&#39;%linkPage%&#39;,&#39;%nextPage%&#39;,&#39;%end%&#39;),
array($this->config[&#39;header&#39;],$this->nowPage,$this->totalRows,$this->totalPages,$upPage,$downPage,$theFirst,$prePage,$linkPage,$nextPage,$theEnd),$this->config[&#39;theme&#39;]);
return $pageStr;
}
}
?>

<?php
class UserAction extends Action{
public function user(){
import("ORG.Util.AjaxPage");// 导入分页类 注意导入的是自己写的AjaxPage类
$credit = M(&#39;user&#39;);
$count = $credit->count(); //计算记录数
$limitRows = 5; // 设置每页记录数
$p = new AjaxPage($count, $limitRows,"user"); //第三个参数是你需要调用换页的ajax函数名
$limit_value = $p->firstRow . "," . $p->listRows;
$data = $credit->order(&#39;id desc&#39;)->limit($limit_value)->select(); // 查询数据
$page = $p->show(); // 产生分页信息，AJAX的连接在此处生成
$this->assign(&#39;list&#39;,$data);
$this->assign(&#39;page&#39;,$page);
$this->display();
}
}
?>

<html>
<head>
<title>Ajax无刷新分页</title>
<script type="text/javascript" src="../Public/jquery-1.7.2.min.js"></script>
<script type="text/javascript">
function user(id){ //user函数名 一定要和action中的第三个参数一致上面有
var id = id;
$.get(&#39;User/user&#39;, {&#39;p&#39;:id}, function(data){ //用get方法发送信息到UserAction中的user方法
$("#user").replaceWith("<p id=&#39;user&#39;>"+data+"</p>"); //user一定要和tpl中的一致
});
}
</script>
</head>
<body>
<p id=&#39;user&#39;> <!--这里的user和下面js中的test要一致-->
<volist id=&#39;list&#39; name=&#39;list&#39;> <!--内容输出-->
<{$list.id}>  <{$list.username}><br/>
</volist>
<{$page}> <!--分页输出-->
</p>
</body>
</html>