//展示从Excel中导入的数据
        public TableModel <Recruitment> ShowDataFromExcel(string filePath)
        {
            DataSet            ds   = new NPOIGetDataFromExcel().GetDataFromExcel(filePath);
            DataTable          dt   = ds.Tables[0];
            List <Recruitment> list = new List <Recruitment>();

            foreach (DataRow row in dt.Rows)
            {
                list.Add(new Recruitment()
                {
                    PostName      = row["职位"].ToString(),
                    PostType      = row["类别"].ToString(),
                    PostPlace     = row["工作地点"].ToString(),
                    PostDesc      = row["职位描述"].ToString(),
                    PostRequire   = row["职位要求"].ToString(),
                    Experience    = row["经验"].ToString(),
                    EduBackground = row["学历"].ToString(),
                    RequireCount  = Convert.ToInt32(row["招聘人数"]),
                    Email         = row["邮箱"].ToString(),
                    Manager       = row["联系人"].ToString(),
                    PhoneNumber   = row["电话"].ToString(),
                    PublishTime   = Convert.ToDateTime(row["发布时间"])
                });
            }
            TableModel <Recruitment> table = new TableModel <Recruitment>();

            table.code  = 0;
            table.count = list.Count;
            table.data  = list;
            return(table);
        }
        //基于事务将Excel中的数据导入到数据库中
        public int InputDataToDB(string filePath)
        {
            DataSet   ds = new NPOIGetDataFromExcel().GetDataFromExcel(filePath);
            DataTable dt = ds.Tables[0];

            using (HotelDBEntities db = new HotelDBEntities())
            {
                using (var cusTransaction = new TransactionScope())
                {
                    try
                    {
                        foreach (DataRow row in dt.Rows)
                        {
                            db.Recruitment.Add(new Recruitment()
                            {
                                PostName      = row["职位"].ToString(),
                                PostType      = row["类别"].ToString(),
                                PostPlace     = row["工作地点"].ToString(),
                                PostDesc      = row["职位描述"].ToString(),
                                PostRequire   = row["职位要求"].ToString(),
                                Experience    = row["经验"].ToString(),
                                EduBackground = row["学历"].ToString(),
                                RequireCount  = Convert.ToInt32(row["招聘人数"]),
                                Email         = row["邮箱"].ToString(),
                                Manager       = row["联系人"].ToString(),
                                PhoneNumber   = row["电话"].ToString(),
                                PublishTime   = Convert.ToDateTime(row["发布时间"])
                            });
                        }
                        int res = db.SaveChanges();
                        cusTransaction.Complete();
                        return(res);
                    }
                    catch (Exception ex)
                    {
                        Transaction.Current.Rollback();
                        throw ex;
                    }
                }
            }
        }