一,寫在最開始:ajax分頁的原理,是利用了js的ajax執行請求,獲取分頁list和分頁page 【代碼塊】,去替換頁面顯示數據的【代碼塊】
技術:js的ajax + TP3.2的fetch("Index/data")技術,僅此而已。
1、在Library\Think\ 目錄下直接加入以下代碼:Ajaxpage.class.php
<?php /** * ajax分頁類,有namespace,使用方法: * 控制器直接$ajaxpage = new \Think\Ajaxpage($p1,$p2,$p3); * @param unknowtype * @return return_type * @author xzz 2018年4月27日上午8:49:19 */ namespace Think; class Ajaxpage { // 分頁欄每頁顯示的頁數 public $rollPage = 5; // 頁數跳轉時要帶的參數 public $parameter ; // 默認列表每頁顯示行數 public $listRows = 20; // 起始行數 public $firstRow ; // 分頁總頁面數 protected $totalPages ; // 總行數 protected $totalRows ; // 當前頁數 protected $nowPage ; // 分頁的欄的總頁數 protected $coolPages ; // 分頁顯示定制 protected $config = array('header'=>'條記錄','prev'=>'上一頁','next'=>'下一頁','first'=>'第一頁','last'=>'最后一頁','theme'=>' %totalRow% %header% %nowPage%/%totalPage% 頁 %upPage% %downPage% %first% %prePage% %linkPage% %nextPage% %end%'); // 默認分頁變量名 protected $varPage; public function __construct($totalRows,$listRows='',$ajax_func,$parameter='') { $this->totalRows = $totalRows; $this->ajax_func = $ajax_func; $this->parameter = $parameter; $this->varPage = 'p' ; if(!empty($listRows)) { $this->listRows = intval($listRows); } $this->totalPages = ceil($this->totalRows/$this->listRows); //總頁數 $this->coolPages = ceil($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 nowpage($totalRows,$listRows='',$ajax_func,$parameter='') { $this->totalRows = $totalRows; $this->ajax_func = $ajax_func; $this->parameter = $parameter; $this->varPage = 'p' ; if(!empty($listRows)) { $this->listRows = intval($listRows); } $this->totalPages = ceil($this->totalRows/$this->listRows); //總頁數 $this->coolPages = ceil($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); return $this->nowPage; } public function setConfig($name,$value) { if(isset($this->config[$name])) { $this->config[$name] = $value; } } public function show() { if(0 == $this->totalRows) return ''; $p = $this->varPage; $nowCoolPage = ceil($this->nowPage/$this->rollPage); $url = $_SERVER['REQUEST_URI'].(strpos($_SERVER['REQUEST_URI'],'?')?'':"?").$this->parameter; $parse = parse_url($url); if(isset($parse['query'])) { parse_str($parse['query'],$params); unset($params[$p]); $url = $parse['path'].'?'.http_build_query($params); } //上下翻頁字符串 $upRow = $this->nowPage-1; $downRow = $this->nowPage+1; if ($upRow>0){ $upPage="<a class='ajaxify' id='big' href='JavaScript:".$this->ajax_func."(".$upRow.")'>".$this->config['prev']."</a>"; }else{ $upPage=""; } if ($downRow <= $this->totalPages){ $downPage="<a class='ajaxify' id='big' href='javascript:".$this->ajax_func."(".$downRow.")'>".$this->config['next']."</a>"; }else{ $downPage=""; } // << < > >> if($nowCoolPage == 1){ $theFirst = ""; $prePage = ""; }else{ $preRow = $this->nowPage-$this->rollPage; $prePage = "<a class='ajaxify' id='big' href='javascript:".$this->ajax_func."(".$preRow.")'>上".$this->rollPage."頁</a>"; $theFirst = "<a class='ajaxify' id='big' href='javascript:".$this->ajax_func."(1)' >".$this->config['first']."</a>"; } if($nowCoolPage == $this->coolPages){ $nextPage = ""; $theEnd=""; }else{ $nextRow = $this->nowPage+$this->rollPage; $theEndRow = $this->totalPages; $nextPage = "<a class='ajaxify' id='big' href='javascript:".$this->ajax_func."(".$nextRow.")' >下".$this->rollPage."頁</a>"; $theEnd = "<a class='ajaxify' id='big' href='javascript:".$this->ajax_func."(".$theEndRow.")' >".$this->config['last']."</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){ $linkPage .= " <a class='ajaxify' id='big' href='javascript:".$this->ajax_func."(".$page.")'> ".$page." </a>"; }else{ break; } }else{ if($this->totalPages != 1){ $linkPage .= " <span class='current'>".$page."</span>"; } } } $pageStr = str_replace( array('%header%','%nowPage%','%totalRow%','%totalPage%','%upPage%','%downPage%','%first%','%prePage%','%linkPage%','%nextPage%','%end%'), array($this->config['header'],$this->nowPage,$this->totalRows,$this->totalPages,$upPage,$downPage,$theFirst,$prePage,$linkPage,$nextPage,$theEnd),$this->config['theme']); return $pageStr; } } ?>
2、TP3.2的控制器中:ajax_action 是ajax請求的路由,action是頁面請求的路由。我們直接訪問action
/** * 用戶行為列表,自定義的ajax分頁,使用方式不應該是頁面訪問, * 而應該是js的onload完成進行ajax初始化訪問 * @author xuzhengzong 2018/04/28 */ public function ajax_action($model='Action'){ //獲取列表數據 //統計要查詢數據的數量 $page_size = 10; //評論固定10條 $page = intval($_REQUEST['p']); $id = intval($_REQUEST['id']); if(empty($page))$page = 1; $limit = (($page-1)*$page_size).",".$page_size ; //讓分頁支持多條件查詢 -- xuzhengzong 2018/04/28 $where['status'] = array('gt',-1); //$_REQURST['cond'] && $where['cond'] = $_REQURST['cond']; //多條件查詢判斷 $list = M($model)->where($where)->order('id desc')->limit($limit)->select(); $count[0]['count'] = M($model)->where($where)->count("*"); //end $param = ''; //$map['status'] = array('gt',1); $Page = new \Think\Ajaxpage($count[0]['count'],$page_size, index,$param);// 實例化分頁類 傳入總記錄數和每頁顯示的記錄數(25) $show = $Page->show();// 分頁顯示輸出 foreach($list as $k=>$v){ $list[$k]['status_text'] = $v['type']==1?'啟用':'禁用'; } $this->assign('_page',$show); $this->assign('_list', $list); $html['content'] = $this->fetch('Ajax/action'); $this->ajaxReturn($html); } /** * 用戶行為列表 * @author */ public function action(){ //獲取列表數據 $Action = M('Action')->where(array('status'=>array('gt',-1))); $this->meta_title = '用戶行為'; $this->display(); }
3、html && js:下面代碼我們知道,頁面document加載完,執行index(1)的方法請求第一個頁面的數據list和page分頁
<!-- 數據列表+ajax分頁 --> <div id="list" class="list"> </div> <script type="text/javascript"> /* 初始化加載action_ajax分頁數據 --xuzhengzong 2018/04/28 */ var init_id = 1; index(init_id); //初始化頁面 init_id==1 function index(id){ var id = id; //把數據傳遞到要替換的控制器方法中 $.ajax({ url:'/index.php/Admin/User/ajax_action', type:"GET", async:false, dataType:"JSON", //data:{'p':id,'id':deal_id}, data:{'p':id}, success:function(data){ $("#list").replaceWith(data.content); //html塊替換html的div }, error:function(data){ console.log("4:ajax not run~"); } }); } </script>
4、核心:上面【data.content】,是加載下面的Ajax/action.html進行替換的。
Ajax/action.html:
<div id="list" class="list"> <!-- 用戶行為ajax分頁示例demo頁面 --> <div class="data-table" id="data-table"> <table class=""> <thead> <tr> <th class="row-selected row-selected"><input class="check-all" type="checkbox"/></th> <th class="">編號</th> <th class="">標識</th> <th class="">名稱</th> <th class="">類型</th> <th class="">規則</th> <th class="">狀態</th> <th class="">操作</th> </tr> </thead> <tbody> <volist name="_list" id="vo"> <tr> <td><input class="ids" type="checkbox" name="ids[]" value="{$vo.id}" /></td> <td>{$vo.id} </td> <td>{$vo.name}</td> <td><a href="{:U('editAction?id='.$vo['id'])}">{$vo.title}</a></td> <td><span>{:get_action_type($vo['type'])}</span></td> <td>{$vo.remark}</td> <td>{$vo.status_text}</td> <td><a href="{:U('User/editAction?id='.$vo['id'])}">編輯</a> <a href="{:U('User/setStatus?Model=action&ids='.$vo['id'].'&status='.abs(1-$vo['status']))}" class="ajax-get">{$vo.status|show_status_op}</a> <a href="{:U('User/setStatus?Model=action&status=-1&ids='.$vo['id'])}" class="confirm ajax-get">刪除</a> </td> </tr> </volist> </tbody> </table> </div> <!-- 分頁 --> <div class="page">{$_page}</div> <!-- /分頁 --> </div>
5、重點講解 為什么 要存在Ajax/action.html文件
我們知道TP3.2的display()是輸出模板,而fetch()是接手模板,但是不渲染。 完了,還沒看明白自行查看TP的fetch()方法。
6、效果: 路由沒帶p參數,跳轉到第二頁咯。