在输入完商户名称之后点击创建就会出现如下页面，并不能正常返回index页面，该怎么解决？

代码都核对过了，和老师您的一样

	@RequestMapping("/index")
    @AdminPermission
    public ModelAndView index(PageQuery pageQuery) {

        PageHelper.startPage(pageQuery.getPage(), pageQuery.getSize());
        List<SellerModel> sellerModelList = sellerService.selectAll();
        PageInfo<SellerModel> sellerModelPageInfo = new PageInfo<>(sellerModelList);

        ModelAndView modelAndView = new ModelAndView("/admin/seller/index.html");
        modelAndView.addObject("data", sellerModelPageInfo);
        modelAndView.addObject("CONTROLLER_NAME", "seller");
        modelAndView.addObject("ACTION_NAME", "index");
        return modelAndView;
    }

								<tr th:each="seller:${data.list}">
                                    <td th:text="${seller.id}"></td>
                                    <td th:text="${seller.name}"></td>
                                    <td th:text="${seller.remarkScore}"></td>
                                    <td th:text="${seller.disabledFlag}"></td>
                                    <td>
                                        <a th:style="(${seller.disabledFlag}==0) ?'display:none'" href="#"  th:id="'up'+${seller.id}"  th:attr="data-id=${seller.id}" class="btn default btn-xs blue">启用</a>
                                        <a th:style="(${seller.disabledFlag}==1) ?'display:none'" href="#"  th:id="'down'+${seller.id}" th:attr="data-id=${seller.id}" class="btn default btn-xs red">禁用</a>
                                    </td>
                                </tr>