springMVC+webUploader从后台读取数据，回显图片,超过三张不再添加

<script type="text/javascript">
$(function(){
var data = ${photoList};
if(data){
for(var i in data){
$('#fileList').append('<li id="KUEMS_'+i+'" class="upload-state-done"><a id="KUEMS_'+i+'"><input type="hidden" value='+data[i]+' id="' + data[i] + '"><img width="90px" height="90px" src="${pageContext.request.contextPath
}/'+data[i]+'"><i id="iIcon"></i></a></li>')
}
}
var li = data.length;
if (li >= 3) {

  $('#filePicker').hide();

  }

});
</script>