这个网页用到了什么技术，<script>标签，还有双大括号{{}}是什么意思

 <#compress>
    <@override name="title">${brand.name}-商品</@override>
    <@override name="viewbody">
    <div class="row">
        <div class="col-md-12">
            <h3 class="page-title">
            ${brand.name}-商品
                <small>${brand.name}-商品管理.</small>
            </h3>
            <ul class="page-breadcrumb breadcrumb">
                <li>
                    <i class="fa fa-home"></i>
                    <a href="${ctx}/admin/home">
                        首页
                    </a>
                    <i class="fa fa-angle-right"></i>
                </li>
                <li>
                    <a href="${ctx}/admin/brand">
                        品牌管理
                    </a>
                    <i class="fa fa-angle-right"></i>
                </li>
                <li>
                    <a href="${ctx}/admin/brand">
                    ${brand.name}-商品列表
                    </a>
                </li>
            </ul>
        </div>
    </div>
    <div class="row">
        <div class="col-md-12">
            <div class="portlet box light-grey">
                <div class="portlet-title">
                    <div class="caption">
                        <i class="fa fa-globe"></i>${brand.name}-商品一览表
                    </div>
                </div>
                <div class="portlet-body">
                    <div class="table-toolbar">
                        <div class="btn-group">
                            <a id="floor_create" href="${ctx}/admin/commodity/create/${brand.id}" class="btn default green-stripe">
                                新增 <i class="fa fa-plus"></i>
                            </a>
                            <a id="floor_batch_delete" class="btn default yellow-stripe batchdelete"
                               data-action="${ctx}/admin/commodity/remove/${brand.id}" data-tables="#commodity-list"
                               data-message="您确认删除所选择的商品信息么？">
                                删除 <i class="fa fa-ban"></i>
                            </a>
                        </div>
                    </div>
                    <table class="table table-striped table-bordered table-hover" id="commodity-list">
                        <thead>
                        <tr>
                            <th width="30"><input type="checkbox" name="checkall"></th>
                            <th width="30">序号</th>
                            <th style="display: none;">ID</th>
                            <th style="display: none;">品牌</th>
                            <th width="80">商品名称</th>
                            <th width="120">商品描述</th>
                            <th width="80">图片</th>
                            <th width="120">图片类型</th>
                            <th style="text-align: center" width="120">操作</th>
                        </tr>
                        </thead>
                        <tbody>

                        </tbody>
                    </table>
                </div>

            </div>
        </div>
    </div>
    <#--Template-->
    <script id="action_template" type="text/x-handlebars-template">
        <a href="${ctx}/admin/commodity/edit/{{id}}" class="btn default blue-stripe" title="编辑">
            <i class="fa fa-edit"></i>
        </a>
        <a href="javascript:void(0);" class="btn default yellow-stripe" title="删除" data-hook="remove-action"
           data-action="${ctx}/admin/commodity/remove?DATA={{id}}">
            <i class="fa fa-trash-o"></i>
        </a>
    </script>
    <script id="priture_template" type="text/x-handlebars-template">
        {{#if picture}}
        <a href="${ctx}{{picture}}" class="thumbnail fancybox-button" data-rel="fancybox-button">
            <img class="" src="${ctx}{{portfolio}}" alt="">
        </a>
        {{else}}
        暂无图片
        {{/if}}
    </script>
    </@override>

    <@override name="viewparams">
    g.brand = ‘${brand.id}‘;
    g.actiontpl = ‘#action_template‘;
    g.prituretpl = ‘#priture_template‘;
    </@override>

    <@override name="viewmodule">commodity_list</@override>
    <@extends name="../_basic/main.ftl"></@extends>
</#compress>