js 文件提交

{# 上传图片uploadImg #}uploadImg:function(currentObj, name){    var formdata = new FormData();    var fileObj = currentObj.get(0).files;    console.log(fileObj[0]);    formdata.append(name, fileObj[0]);    jQuery.ajax($.common.getOptions({        url:"{% url 'fileUpload' base_id=base_id%}",        data: formdata,        processData: false,        contentType: false,        dataType:'json',        beforeSubmit:function(){                var flag = $.html5Validate.isAllpass();                if(flag){$.QloadingCover('show');}            return flag;        },        success:function(backData){            backData = $.common.jsonparse(backData);            if(backData.appcode!=0){alert(backData.databuffer);return;}            else{alert(backData.databuffer)}        }    }));}