How to call the triggerHandler method for dynamically added nodes in Angular?

My nodes are dynamically generated based on a table:

 <a class="btn btn-default J_Local" href="javascript:void(0);" id="J_MapImg_{{my.sku_val_id}}"  ng-click="uplod($event)"><span>本地上传</span></a>

The click event is as follows:

$scope.uplod = function(obj){
    supload.init({
        button: ''+obj.currentTarget.id+'', uploaded: function (uploader, file, response) {
            if (response.code == 1){
                layer.msg(response.msg);
            }
            else {
                $('#'+obj.currentTarget.id).siblings("p.preview").html("<img src='" + response.src + "' width='20' height='20'/>");
            }
        }
    });
    $('#'+obj.currentTarget.id+'').off("click");
}

But the dynamically generated image calls my image upload and requires double-clicking to be punished. I want to have it automatically trigger a click when a click is generated. How to achieve this?