<div class="sidebar">

        <div class="mc-search">

            <div class="input-group">

                <input type="text" class="form-control" placeholder="Search...">

            <span class="input-group-btn">

                <button type="button" class="btn btn-default"><i class="fa fa-search"></i></button>

            </span>

            </div>

        </div>

        <div class="navbar navbar-default" id="mycollapse">

            <!-- <ul class="nav navbar-nav nav-pills nav-stacked"> -->

            <ul class="nav nav-pills nav-stacked">

                <li><a href="#"><i class="fa fa-dashboard fa-fw"></i> DashBord</a></li>

                <li>

                    <a href="#second-level-1" class="second-level accordion-toggle"

                       data-toggle="collapse"

                       data-parent="#mycollapse">

                        <i class="fa fa-table fa-fw"></i> Table<i

                            class="fa fa-angle-left pull-right"></i>

                    </a>

                    <ul class="nav collapse" id="second-level-1">

                        <li><a href="#">数据库测试</a></li>

                        <li><a href="#">数据库测试</a></li>

                        <li><a href="#">数据库测试</a></li>

                    </ul>

                </li>

                <li><a href="#"><i class="fa fa-bar-chart fa-fw"></i> Chart</a></li>

                <li><a href="#"><i class="fa fa-edit fa-fw"></i> Form</a></li>

                <li>

                    <a href="#second-level-2" class="second-level accordion-toggle"

                       data-toggle="collapse"

                       data-parent="#mycollapse">

                        <i class="fa fa-table fa-fw"></i> Table<i

                            class="fa fa-angle-left pull-right"></i>

                    </a>

                    <ul class="nav collapse" id="second-level-2">

                        <li><a href="#">数据库测试</a></li>

                        <li><a href="#">数据库测试</a></li>

                        <li><a href="#">数据库测试</a></li>

                    </ul>

                </li>

                <li><a href="#"><i class="fa fa-wrench fa-fw"></i> UI Element</a></li>

                <li>

                    <a href="#second-level-3" class="second-level accordion-toggle"

                       data-toggle="collapse" data-parent="#mycollapse">

                        <i class="fa fa-table fa-fw"></i> Table<i

                            class="fa fa-angle-left pull-right"></i>

                    </a>

                    <ul class="nav collapse" id="second-level-3">

                        <li><a href="#">数据库测试</a></li>

                        <li><a href="#">数据库测试</a></li>

                        <li><a href="#">数据库测试</a></li>

                    </ul>

                </li>

            </ul>

        </div>

    </div>

$(function () {

    $(document).on('click', '.accordion-toggle', function(event) {

        event.stopPropagation();

        var $this = $(this);

        var parent = $this.data('parent');

        var actives = parent && $(parent).find('.collapse.in');

        // From bootstrap itself

        if (actives && actives.length) {

            actives.data('collapse');

            actives.collapse('hide');

        }

        var target = $this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, ''); //strip for ie7

        $(target).collapse('toggle');

    });

})