上傳下載

 

上傳下載#region 上傳下載

        上傳功能#region 上傳功能    
        public string GetFileName()
        {
            FileName1    =    txtA23_6.PostedFile.FileName;//取檔案名稱
            FileName2    =    FileName1.LastIndexOf("\\",FileName1.Length);//取整個路徑最後一個\的位置
            FileName3    =    FileName1.Substring(FileName2+1);//只取最後一個\之後的檔案名稱
            
            return FileName3 ;
        }
    

        public void btnUpload_Click(Object sender, EventArgs e)
        {
            FileName4 = Server.MapPath("..\\upload\\rcnb01b\\")+GetFileName();                        //取得伺服器路徑和檔案名稱
//            ViewState["Name"]=GetFileName();
            int fileLength    = txtA23_6.PostedFile.ContentLength;

            if (!Directory.Exists(Server.MapPath("..\\upload\\rcnb01b\\")))
            {
                Directory.CreateDirectory(Server.MapPath("..\\upload\\rcnb01b\\")).ToString(); 
            }

            if(GetFileName().Length<=100)
            {
                if(txtA23_6.Value.Trim() == null || txtA23_6.Value.Length == 0 || "".Equals(txtA23_6.Value))
                {
                    bs.CommFuns.ShowMessage(this.Page,"請選擇您要上傳的檔案位置 !!");
                    bs.CommFuns.SetFocus(this.Page,txtA23_6);
                }
                else
                {
                    //                if (!Directory.Exists(Server.MapPath("..\\upload\\"+txtA23_7.Text.Trim()+"\\"))) 
                    //                {
                    //                    if(fileLength==0)                                                    //若上傳檔案的大小為0,則顯示:"檔案上傳失敗!!"
                    //                    {
                    //                        bs.CommFuns.ShowMessage(this.Page,"檔案的大小為0,檔案上傳失敗!!");
                    //                    }
                    //                    else
                    //                    {
                    //                        string di = Directory.CreateDirectory(Server.MapPath("..\\upload\\"+txtA23_7.Text.Trim())).ToString(); //自動創建目錄
                    //                        string FileName5=Server.MapPath("..\\upload\\"+di+"\\")+GetFileName();    
                    //                        try
                    //                        {
                    //                            txtA23_6.PostedFile.SaveAs(FileName5);                        //上傳儲存檔案到指定的目錄
                    //                            bs.CommFuns.ShowMessage(this.Page,"檔案上傳成功!!");
                    //                        }
                    //                        catch
                    //                        {
                    //                            bs.CommFuns.ShowMessage(this.Page,"檔案上傳失敗!!");
                    //                        }
                    //                    }
                    //                }
                    //                else
                    //                {
                    if(File.Exists(FileName4))                                                //判斷檔案是否存在
                    {
                        try
                        {
                            txtA23_6.PostedFile.SaveAs(FileName4);                            //上傳檔案到指定的目錄
                            bs.CommFuns.ShowMessage(this.Page,"檔案存在!! 已覆蓋檔案 !!");
                            txtA23_7.Text=GetFileName();
                        }
                        catch
                        {
                            bs.CommFuns.ShowMessage(this.Page,"檔案上傳失敗!!");
                        }
                    }
                    else
                    {
                        if(fileLength==0)                                                    //若上傳檔案的大小為0,則顯示:"檔案上傳失敗!!"
                        {
                            bs.CommFuns.ShowMessage(this.Page,"檔案的大小為0,檔案上傳失敗!!");
                        }
                        else
                        {
                            try
                            {
                                txtA23_6.PostedFile.SaveAs(FileName4);                        //上傳儲存檔案到指定的目錄
                                bs.CommFuns.ShowMessage(this.Page,"檔案上傳成功!!");
                                txtA23_7.Text=GetFileName();
                            }
                            catch
                            {
                                bs.CommFuns.ShowMessage(this.Page,"檔案上傳失敗!!");
                            }
                        }
                    }
                    //                }
                }
            }
            else
                bs.CommFuns.ShowMessage(this.Page,"文件名長度超過100!!");
            
        }

        #endregion

        下載功能#region 下載功能
        public void btnDownload_Click(object sender, System.EventArgs e)
        {
            if(txtA23_7.Text.Trim()=="")
            {
                bs.CommFuns.ShowMessage(this.Page,"不存在檔案");
            }
            else
            {
                if(!File.Exists(Server.MapPath("..\\upload\\rcnb01b\\")+txtA23_7.Text.Trim()))
                {
                    bs.CommFuns.ShowMessage(this.Page,"不存在此檔案");
                }
                else
                {
                    FileDownload(Server.MapPath("..\\upload\\rcnb01b\\")+txtA23_7.Text.Trim());
                }
            }
        }

        private void FileDownload(string FullFileName)
        {
　            FileInfo DownloadFile = new FileInfo(FullFileName);
　            Response.Clear(); 
　            Response.ClearHeaders(); 
            //Response.Expires=0;
            Response.Charset = "utf-8";
　            Response.Buffer = true; 
            //            byte[] buffer = new byte[1000];
            //
            //            System.IO.Stream FileStream=File.OpenRead(FullFileName);
            //            int numBytesToRead = (int) FileStream.Length;
            //            FileStream.Read(buffer,0,numBytesToRead);
            //            FileStream.Close();

　            Response.ContentType = "Application/octet-stream";
            Response.ContentEncoding = System.Text.Encoding.UTF8;
            Response.AppendHeader("Content-Disposition","attachment;filename=" + txtA23_7.Text.Trim());
　            Response.AppendHeader("Content-Length", DownloadFile.Length.ToString());
　            Response.WriteFile(DownloadFile.FullName);

　            Response.Flush(); 
　            Response.End(); 

        }

        #endregion

        #endregion