Ajax做列表无限加载和Ajax做二级下拉选项

//栏目Ajax做加载
    public function ajaxlist(){
        //echo "http://www.域名.com/index.php?a=Index&c=Index&m=ajaxlist";
        //echo "<hr>";
        $data = Q('sum');
        $where = array();
        $where['cid'] = 33;
        $rongyuList = M('content')->limit($data,2)->where($where)->select();
        $data['stat'] = 1;
        $data = $rongyuList;
        $this->ajax($data);
        //也可以手动把想要的字段拼接成字符串    
        /*echo "[";
        foreach($rongyuList as $k){
            echo "{"."""."title".""".":".""".$k['title'].""".","."""."description".""".":".""".$k['description'].""".","."""."cid".""".":".""".$k['cid']."""."}".",";            
        }
        echo "]";*/
    }

具体页面实现：

<script type='text/javascript'>
/*ajax*/
(function(){
//发送数据 
var url = "__WEB__"+"?a=Index&c=Index&m=ajaxlist";
var oSum = ''; 
$('a.ajaxBut').click(function(){
    oSum = $('div.zizhiListContBox>a').size();
    $.post(url,{sum:oSum},function(result){
        console.log(result);
        eval("var info="+result);
        for(var key in info){
                 oStr = "<a href='"+"__WEB__"+"?a=Index&amp;c=Index&amp;m=content&amp;mid=1&amp;cid=33&amp;aid="+info[key]['aid']+""+"'><h3 class='f100 f16 ts500'>"+info[key]['title']+"</h3><p>"+info[key]['description']+"</p><span class='b parb'></span></a>";
                 $('div.zizhiListContBox').append(oStr);
        };
    });
});
})();
</script>

Ajax 做二级选项：

<!-- 示例：HTML -->
<dl class="pr keshi" >
    <dt class="pa">科室：</dt>
    <dd class="pa">
        <select name='keshi' class='m_keshi'>
            <option value='0'>--请选择科室--</option>
        </select>
        <select name='zhuanjia' class='m_zhuanjia'>
            <option>--请选择专家--</option>
        </select>
    </dd>
</dl>

示例控制器：

//示例控制器
/* Ajax请求栏目列表 */
public function ajaxlanmu(){
    $lanmuList = M('category')->where('pid=142')->select();
    $this->ajax($lanmuList);
}
public function ajaxzhuanjia(){
    $where = array();
    $data = Q('sum');
    $data = $data ? $data : 143;
    $where['cid'] = $data;
    $zhuanjiaList = M('guahao')->where($where)->select();
    $this->ajax($zhuanjiaList);
}

示例：JS

<script>
(function(){
var lanmuUrl = "__WEB__"+"?a=Index&c=Index&m=ajaxlanmu";
var zhuanjiaUrl = "__WEB__"+"?a=Index&c=Index&m=ajaxzhuanjia";
var oSum = oStr = oStr2 = oVal = oKong = info2 = oCid = '';
/* lanmu */
$.post(lanmuUrl,function(result){
    eval("var info="+result);
    for(var key in info){oStr += "<option value='"+info[key]['catname']+"' cid='"+info[key]['cid']+"'>"+info[key]['catname']+"</option>";};
    $('dl.keshi').find('select.m_keshi').append(oStr);
});
/* zhuanjia */
$('dl.keshi').find('select.m_keshi').change(function(){
    oVal = $(this).find('option:selected').val();
    if(oVal == 0){
        $('dl.zhuanjia').find('select.m_zhuanjia').html("<option>--请选择专家--</option>");
    }else{
        oCid = $(this).find('option:selected').attr('cid');
        $.post(zhuanjiaUrl,{sum:oCid},function(result){
            eval("info2="+result);
            oStr2 = '';//注意这里要清空第一次请求的数据
            for(var key2 in info2){
                oStr2 += "<option value='"+info2[key2]['title']+"'>"+info2[key2]['title']+"</option>";             
            };
            $('dl.zhuanjia').find('select.m_zhuanjia').html(oStr2);
        });
    };
});
})();
</script>