Ajax异步获取加载文章列表代码

最新推荐文章于 2024-07-22 21:07:03 发布

melivn

最新推荐文章于 2024-07-22 21:07:03 发布

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本文链接：https://blog.youkuaiyun.com/melivn/article/details/77542485

本文介绍了一种使用AJAX技术在织梦CMS中实现动态加载更多文章列表的方法。通过修改织梦模板和添加JavaScript代码，实现了平滑且快速的数据加载效果。

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代码不是原创，在网上搜集了很多，测试了几个都有些大大小小的几个问题。下面是个人修正过的。

首先修改的/plus/list.php 页面内容，在require_once(dirname(__FILE__)."/../include/common.inc.php");下加添加即可。

把js文件加入织梦模版，把要加载的div加上id="a_say";

if(isset($_GET['ajax'])){
    $typeid = isset($_GET['typeid']) ? intval($_GET['typeid']): 0;//传递过来的分类ID
    $page = isset($_GET['page']) ? intval($_GET['page']): 0;//页码
    $pagesize = isset($_GET['pagesize']) ? intval($_GET['pagesize']): 1;//每页多少条，也就是一次加载多少条数据
    $start = $page>0 ? ($page-1)*$pagesize : 0;//数据获取的起始位置。即limit条件的第一个参数。
    $typesql = $typeid ? "AND typeid=$typeid" : '';//这个是用于首页实现瀑布流加载，因为首页加载数据是无需分类的，所以要加以判断，如果无需
    $total_sql = "SELECT COUNT(id) as num FROM `#@__archives` WHERE arcrank=0 $typesql";
    $temp = $dsql->GetOne($total_sql);
    $total = 0;//数据总数
    $load_num =0;
    if(is_array($temp)){
        $load_num= round(($temp['num']-1)/$pagesize);//要加载的次数,因为默认已经加载了
        $total = $temp['num'];
    }
    $sql = "SELECT a.*,t.typedir,t.typename,t.isdefault,t.defaultname,t.namerule,
    t.namerule2,t.ispart, t.moresite,t.siteurl,t.sitepath
    FROM `#@__archives` as a JOIN `#@__arctype` AS t ON a.typeid=t.id WHERE arcrank=0 $typesql ORDER BY id DESC LIMIT $start,$pagesize";
    $dsql->SetQuery($sql);
    $dsql->Execute('list');
    $statu = 0;//是否有数据，默认没有数据
    $data = array();
    $index = 0;
    while($row = $dsql->GetArray("list")){
        $row['info'] = $row['info'] = $row['infos'] = cn_substr($row['description'],160);
        $row['id'] =  $row['id'];
        $row['filename'] = $row['arcurl'] = GetFileUrl($row['id'],
        $row['typeid'],$row['senddate'],$row['title'],$row['ismake'],
        $row['arcrank'],$row['namerule'],$row['typedir'],$row['money'],
        $row['filename'],$row['moresite'],$row['siteurl'],$row['sitepath']);
        $row['typeurl'] = GetTypeUrl($row['typeid'],$row['typedir'],
        $row['isdefault'],$row['defaultname'],$row['ispart'],
        $row['namerule2'],$row['moresite'],$row['siteurl'],$row['sitepath']);
        if($row['litpic'] == '-' || $row['litpic'] == ''){
            $row['litpic'] = $GLOBALS['cfg_cmspath'].'/images/defaultpic.gif';
        }
        if(!preg_match("#^http:\/\/#i", $row['litpic']) &&$GLOBALS['cfg_multi_site'] == 'Y'){
            $row['litpic'] = $GLOBALS['cfg_mainsite'].$row['litpic'];
        }
        $row['picname'] = $row['litpic'];//缩略图
        //$row['stime'] = GetDateMK($row['pubdate']);
        $row['stime'] = date('Y-m-d H:i', $row['pubdate']);
        $row['click'] = $row['click'];
        $row['typelink'] = "".$row['typename']."";//分类链
        $row['fulltitle'] = $row['title'];//完整的标题
        $row['shorttitle'] = $row['shorttitle'];//副标题
        $row['title'] = cn_substr($row['title'], 80);//截取后的标题
        $data[$index] = $row;
        $index++;
    }
    if(!empty($data)){
        $statu = 1;//有数据
    }
    $result =array('statu'=>$statu,'list'=>$data,'total'=>$total,'load_num'=>$load_num);
    echo json_encode($result);//返回数据
    exit();
}