li>
                <li th:class="${currUri == 'messages' ? 'active' : ''}" th:if="${session.loginUser.role == 'teacher'}">
                <a href="messages"><i class="ion ion-chatbubble-working"></i><span>消息中心</span>
                    <div class="badge badge-danger" th:if="${session.messagesCount > 0}" th:text="${session.messagesCount}"></div>
                </a>
            </li>
            <li th:class="${currUri == 'leader-audit' ? 'active' : ''}" th:if="${session.loginUser.role == 'teacher