spring boot2.4 @DeleteMapper识别失败

在使用ajax提交结合@DeleteMapper做删除时，我加上了_method="DELETE"，但提交后识别到post请求，网上说时2.4需要加上一句配置

spring.mvc.hiddenmethod.filter.enabled=true

$.ajax({
                            type: 'post',
                            url: '/backend/category/' + data.id,
                            data: {'_method': 'DELETE'},
                            success: function (result) {
                                console.log(result)
                                if (result.code !== 0) {
                                    layer.msg(result.message, {shift: 6});
                                    return false;
                                }
                                layer.msg(result.message, {icon: 1}, function () {
                                    location.href = '/backend/category';
                                });
                            }
                        });

 @DeleteMapping("/category/{id}")
    @ResponseBody
    public JsonResponse delete(@PathVariable("id") Long id)
    {
        categoryService.removeById(id);
        return new JsonResponse().message("删除成功").success();
    }