public JsonResult ImportExcel()
        {
            if (Request.Form.Files.Count == 0)
            {
                return(Json(new Result()
                {
                    success = false, msg = "请上传文件!"
                }));
            }
            else
            {
                int i    = 0;
                var file = Request.Form.Files[i];
                if (null == file || file.Length <= 0)
                {
                    return(Json(new Result()
                    {
                        success = false, msg = "上传文件格式不正确!"
                    }));
                }
                //if(Request.ContentLength > maxRequestLength)
                //{
                //    return Json(new Result() { success = false, msg = "文件大小超出限制!" });
                //}

                Random ra       = new Random();
                string filename = DateTime.Now.ToString("yyyyMMddHHmmssffffff") + i
                                  + Path.GetExtension(file.FileName);

                string DirUrl = _hostingEnvironment.ContentRootPath + "/temp/";
                if (!System.IO.Directory.Exists(DirUrl))      //检测文件夹是否存在,不存在则创建
                {
                    System.IO.Directory.CreateDirectory(DirUrl);
                }
                string path = AppDomain.CurrentDomain.BaseDirectory + "/temp/" + filename;

                using (var fileStream = new FileStream(path, FileMode.Create))
                    file.CopyToAsync(fileStream).Wait();


                DataTable dt      = GetData(Path.Combine(path, filename));
                var       service = _iSensitiveWordService;
                foreach (DataRow dr in dt.Rows)
                {
                    if (service.ExistSensitiveWord(dr[1].ToString()) == false)
                    {
                        var model = new Entities.SensitiveWordInfo()
                        {
                            CategoryName = dr[0].ToString(), SensitiveWord = dr[1].ToString()
                        };
                        service.AddSensitiveWord(model);
                    }
                }
                return(Json(new Result()
                {
                    success = true, msg = "导入成功!"
                }));
            }
        }
        public JsonResult Eidt(int id, string word, string category)
        {
            var model = new Entities.SensitiveWordInfo()
            {
                Id = id, SensitiveWord = word, CategoryName = category
            };

            _iSensitiveWordService.UpdateSensitiveWord(model);
            return(Json(new Result()
            {
                success = true, msg = "修改成功!"
            }));
        }
        public JsonResult Add(string word, string category)
        {
            var service = _iSensitiveWordService;

            if (service.ExistSensitiveWord(word) == false)
            {
                var model = new Entities.SensitiveWordInfo()
                {
                    SensitiveWord = word, CategoryName = category
                };
                service.AddSensitiveWord(model);
                return(Json(new Result()
                {
                    success = true, msg = "添加成功!"
                }));
            }
            else
            {
                return(Json(new Result()
                {
                    success = false, msg = "该敏感关键词已存在!"
                }));
            }
        }