织梦dede首页和列表文章ajax异步加载方法

用织梦开源程序在首页或列表页文章点击下一页无刷新加载文章，或滚动条往下拉加载列表文章。就好像瀑布流的形式一样。下面介绍用织梦如何实现这个功能瀑布流加载功能
1、在plus/list.php加入如下php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 `dede_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']-12)/$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 `dede_archives` as a JOIN `dede_arctype` AS t ON a.typeid=t.id  $typesql ORDER BY id DESC LIMIT $start,$pagesize";

    //echo "$sql";

    $dsql->SetQuery($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']);

     $row['typelink'] = "<a href='".$row['typeurl']."'>".$row['typename']."</a>";//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'], 60);//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();

}
2、在页面底部加入如下js代码

<script type="text/javascript">

var loadConfig = {

url_api:'/plus/list.php',

typeid:0,

page:2,

pagesize:12,

loading : 0,

}

function loadMoreApply(){

if(loadConfig.loading == 0){

var typeid = loadConfig.typeid;

var page = loadConfig.page;

//alert(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);

//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 len = data.length;

for(var i=0;i<len;i++){

arr.push('<li>');

arr.push('<div class="img">');

arr.push('<a href="'+data[i].arcurl+'" target="_blank"><img style="width:180px; height:110px;" src="'+data[i].picname+'" /></a>');

arr.push('</div>');

arr.push('<div class="cntx">');

arr.push('<h4><a href="'+data[i].arcurl+'" class="l" target="_blank">'+data[i].title+'</a></h4>');

arr.push('<p>'+data[i].infos+'</p>');

arr.push('<div class="fl huise">'+data[i].stime+'</div>');

arr.push('<div class="clear"></div>');

arr.push('</div>');

arr.push('</li>');

}

$('#cms_list').append(arr.join(''));

 

loadConfig.load_num = rs.load_num;

 

if(total<loadConfig.page*loadConfig.pagesize || loadConfig.page > loadConfig.load_num){

alert("没有数据了");

document.getElementById("loadlist").removeEventListener('click',loadMoreApply,false);

}

loadConfig.page++;

 

loadConfig.loading = 0;

}

}

function pullLoad(){

document.getElementById("loadlist").addEventListener('click', loadMoreApply, false);

}

pullLoad();

</script>

这个是首页加载方法。列表页只需把typeid:0, 修改为typeid:{dede:field name=”typeid”/},即可