我写这个上拉刷新为什么ajax请求不到数据呢

下面是代码，请大神们帮忙看看

mui.init({  
        pullRefresh : {  
        container:'.box-chou',  
       up : {  
              height:50,  
              auto:true,  
              contentrefresh: "正在加载...",  
              contentnomore:'没有更多数据了',  
             callback : upshua  
         }  
       }  
 });  

 function upshua(){  
    var booName = decodeURI($.getUrlVar('id'));  
    console.log(booName)  
    $.ajax({  
        type:"POST",  
        url:durl+"/api/funding/class",  
        async:true,  
        data:{cat_id:booName},  
        success:function(data){  
            var htmls = '';  
            var html = '';  
            $.each(data.data.data,function(k,co){  
                htmls += '<img src='+dimg+co.image+' class="starimg" alt="" />';  
                html += '<div class="box-chou"><div class="box-chou-a">'+  
                        '<div class="ytt">生态'+co.title+'</div><div class="jin-wai">'+  
                        '<div class="jin-nei"></div></div><span class="wai-a"></span>'+  
                        '<div class="chou-mm">'+  
                        '<div><span class="zy">'+co.end_time+'</span><span>结束时间</span></div>'+  
                        '<div><span>'+co.money+'</span><span>已筹金额</span></div>'+  
                        '<div><span class="can">'+co.num+'</span><span>参与人数</span></div></div></div>'+  
                        '<div class="box-chou-b"><button onclick=gong('+co.id+') type="button" class="mui-btn mui-btn-outlined">发起众筹</button></div></div>'+  
                        '<div class="zong" style="display:none;">'+co.people+'</div>';  
            });  
            //进度条  
            $(".boji").html(htmls);  
            $(".chou").html(html);  
              $(function(){  
              var can = $('.can').html();  
              var zong = $('.zong').html();  
              var bai = $('.wai-a');  
              var bai = ((can / zong) * 100) + '%';  
              $('.jin-nei').css('width',bai);  
               $('.wai-a').append(bai);  
             })  

            }  
        });  

        this.endPullupToRefresh(false);  

    }