效果：

引用：

 <link rel="stylesheet" href="bootstrap.css">
 <script src="jquery.fileupload.js"></script>
  <script src="http://malsup.github.com/jquery.form.js"></script>

html:

<div class="form-group">
            <label>產品視訊：</label>
            <div
 
 class="videoUpfile">
                <input type="file" name="avatarVideo" class="avatarVideo"><a class="btn  deleteAvatarVideo" href="javascript:;">刪除</a>
                <div class="videoMaterials">
                    <div class="progress">
                        <div
 
 class="progress-bar progress-bar-success progress-bar-striped" role="progressbar" aria-valuenow="45" aria-valuemin="0" aria-valuemax="100" style="width: 0%">
                            <span class="sr-only">0% Complete</span>
                        </div>
                    </div
 
>
                    <div class="files"></div>
                    <div class="showimg"></div>
                    <input type="hidden" value="" name="video_id[]">
                    <p style="color: #b92c28" class="img_upload_info"></p>
                </div>
            </div>
            <div class="videoUpfile">
                <input type="file" name="avatarVideo" class="avatarVideo"><a class="btn  deleteAvatarVideo" href="javascript:;">刪除</a>
                <div class="videoMaterials">
                    <div class="progress">
                        <div class="progress-bar progress-bar-success progress-bar-striped" role="progressbar" aria-valuenow="45" aria-valuemin="0" aria-valuemax="100" style="width: 0%">
                            <span class="sr-only">0% Complete</span>
                        </div>
                    </div>
                    <div class="files"></div>
                    <div class="showimg"></div>
                    <input type="hidden" value="" name="video_id[]">
                    <p style="color: #b92c28" class="img_upload_info"></p>
                </div>
            </div>
</div>

script:

//上傳視訊

$(".avatarVideo").change(function() {
    var _this = $(this);
    _this.wrap("<form class='fileUploadeVideo' action='/admin/uploadimg/addVideo' method='post' enctype='multipart/form-data'></form>");
    _this.parents('.fileUploadeVideo').ajaxSubmit({
        dataType: 'json',
        beforeSend: function () {
            $(".progress").show();
        },
        uploadProgress: function (event, position, total, percentComplete) {
            var percentVal = percentComplete + '%';
            _this.parents('.videoUpfile').find(".progress-bar").width(percentComplete + '%');
            _this.parents('.videoUpfile').find(".progress-bar").html(percentVal);
            _this.parents('.videoUpfile').find(".sr-only").html(percentComplete + '%');
        },
        success: function (data) {
            if(data.code==100) {
                _this.parents('.videoUpfile').find(".files").html("檔名: " + data.video_title);
                _this.parents('.videoUpfile').find("input[type=hidden]").val(data.video_id);
                alert("上傳成功!");
            }else{
                alert("上傳失敗");
            }
        },
        error: function () {
            alert("上傳失敗");
        }
    });