C#上传到FTP Server

上传到FTP Server Controller

[HttpPost]
        public ActionResult Upload(HttpPostedFileBase[] files)
        {
            //廠別，部門，單號，單據類型，文件名，保存文件名，Seq,上傳人員，上傳時間 Enabled
            //1.保存文件，2.保存文件信息到數據庫表EMS_MT_EvidFile  mtEvidFileBLL
            FtpWeb ftp = new FtpWeb();
            var fi = files;           
            string mtNO = Request["MTNO"].ToString();
            int deptID = Convert.ToInt32( Request["DeptID"]);
            string docType = "MT";
            //獲取周
            string strWeek = System.Globalization.CultureInfo.InvariantCulture.Calendar.GetWeekOfYear(DateTime.Now, System.Globalization.CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Monday).ToString();
            string strProName = "EMS_MT_EVIDFILE";
            string fileExtenName = string.Empty;
            string fileName=string.Empty;       
            var filePath = "/EMS" + "/" + "UploadDoc" + "/" + strProName + "/" + PlantID + "/" + DateTime.Now.ToString("yyyy") + strWeek.PadLeft(2, '0') + "/";
            #region 創建文件路徑
            ftp.MakeDirByUrlPath(filePath);
            #endregion
            if (fi != null)
            {
                try
                {
                    var virtualPath = string.Empty;
                    //最大seq
                    int maxSeq = mtEvidFileBLL.GetMaxSeqByMTNO(string.Format(" PlantID = '{0}' and MTNO = '{1}' and DocType = '{2}' " ,PlantID,mtNO,docType));                  
                    List<Lib.Model.EMS.Spart.MTEvidFile> fileModeles = new List<Lib.Model.EMS.Spart.MTEvidFile>();
                    foreach (var file in fi)
                    {
                        maxSeq++;
                        int seq = maxSeq;
                        if (seq > 5)
                        { throw new Exception(string.Format("上傳失敗,已上傳{0}個檔案,最多只能上傳5個檔案!",seq-1)); }
                        fileExtenName = System.IO.Path.GetExtension(file.FileName);
                        fileName = string.Format("{0}_{1}{2}",mtNO, seq , fileExtenName);
                        virtualPath = filePath + fileName;
                        Lib.Model.EMS.Spart.MTEvidFile mtFileModel = new Lib.Model.EMS.Spart.MTEvidFile()
                        { MTEvidFileGUID = ResultHelper.NewGuid, DeptID = (int)deptID, DOCType = docType, EmpID=LoginUserID, Enabled = "Y",
                            EvidFileSeq = seq , MTNO = mtNO, OperatorRemark = "", PlantID = PlantID, UpdateTime = ResultHelper.NowTime,
                            ShowFIleName= fileName , SaveFileName= virtualPath
                        };
                        fileModeles.Add(mtFileModel);                      
                        #region 備份
                        //如已有備份則刪除                     
                        string bkFile = $"{filePath}BK_{fileName}";
                        if (ftp.FileExist(filePath, $"BK_{fileName}"))
                        {
                            ftp.Delete(bkFile);                           
                        }
                        if (ftp.FileExist(filePath,fileName))
                        {
                            //上一個版本移動到備份                        
                            ftp.MovieFile(filePath, fileName, $"BK_{fileName}");
                        }

                        #endregion
                        // 保存文件                     
                        ftp.Upload(file, filePath, fileName);
                    }
                    //
                    mtEvidFileBLL.Save(fileModeles);
                    return Json(new { Success = true, Filepath = virtualPath, Message = "上傳成功！" });                   
                }
                catch (Exception ex)
                {
                    return Json(new { Success = false, Message = ex.Message });                    
                }
            }
            else
            { 
                return Json(new { Success = false, Message = "沒有要上傳的文件！！" });
            }                   
        }

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