织梦dedecms首页列表页ajax点击下拉加载更多文章瀑布流效果

//列表页瀑布流无限加载代码
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']): 15;//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 = $typeid ? " WHERE typeid=$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` $typesql ";
    $temp = $dsql->GetOne($total_sql);
    $total = 0;//数据总数
    $load_num =0;
    if(is_array($temp)){
        $load_num= round(($temp['num']-15)/$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 $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();
}

<script type="text/javascript">
var loadConfig = {
                url_api:'/plus/list.php',
                typeid:{dede:field name="typeid"/},
                page:2,
                pagesize:15,  //这个就是滑动一次添加几条信息的参数设置
                loading : 0,
                }
function  loadMoreApply(){
    if(loadConfig.loading == 0){
         var typeid = loadConfig.typeid;
         var page = loadConfig.page;
         var pagesize = loadConfig.pagesize;
         var url = loadConfig.url_api,data={ajax:'pullload',typeid:typeid,page:page,pagesize:pagesize};
         var sTop = document.body.scrollTop || document.documentElement.scrollTop, dHeight = $(document).height(), cHeight = document.documentElement.clientHeight;
         console.log(dHeight);
              
         if (sTop + cHeight >= dHeight - cHeight) {
             loadConfig.loading = 1;
            function ajax(url, data) {
                     
                $.ajax({url: url,data: data,async: false,type: 'GET',dataType: 'json',success: function(data) {
                    addContent(data);  
                }});
            }
            ajax(url,data);
        }
    }
}
 function addContent (rs){
    if(rs.statu== 1){
        var data = rs.list;
        var total = rs.total;
        var arr=[];
        var length = data.length;
        for(var i=0;i<length;i++){
            arr.push('<a href="'+data[i].arcurl+'" title="'+data[i].title+'">');
            arr.push('<dl class="yz_card">');
            arr.push('<dt class="yz_card_dt">');
            arr.push('<img src="'+data[i].picname+'" alt="'+data[i].title+'">');
            arr.push('</dt>');
            arr.push('<dd class="yz_card_dd">');
            arr.push('<p class="yz_card_p">'+data[i].title+'</p>');
            arr.push('<div class="yz_card_icon">');
            arr.push('<span class="yz_comment">');
            arr.push(data[i].click);                            
            arr.push('<em class="yz_icon_comment"><img src="/templets/default/images/pingluan.png" height="14"></em>');
            arr.push('</span>');
            arr.push('</div>');
            arr.push('<div class="yz_datetime">'+data[i].stime+'</div>');
            arr.push('</dd>');
            arr.push('</dl>');
            arr.push('</a>');
        }
        $('.arclist').append(arr.join(''));
        loadConfig.load_num = rs.load_num;
        if(total<loadConfig.page*loadConfig.pagesize || loadConfig.page > loadConfig.load_num){
            window.removeEventListener('srcoll',loadMoreApply,false);
        }
        loadConfig.page++;
        loadConfig.loading = 0;
    }
}
function pullLoad(){
    window.addEventListener('scroll', loadMoreApply, false);
}
pullLoad();
</script>