1 string imgPath = string.Empty;//图片路径 2 string ftpFileName = System.Configuration.ConfigurationManager.AppSettings["QuickLink"];//在配置文件中定义存图片的文件夹 3 HttpFileCollectionBase httpFiles = Request.Files; 4 5 #region 上传图片相关处理 6 HttpPostedFileBase imgPathFile = httpFiles["fileImgPath"]; //获取界面传来的图片路径 7 //如果界面传来的文件名不为空，则把图片上传到FTP，并返回FTP路径 8 if (!string.IsNullOrEmpty(imgPathFile.FileName)) 9 { 10 imgPath = FtpUpImage(ftpFileName, link.ID.ToString(), imgPathFile);//把图片上传至FTP 11 link.ImgPath = imgPath; 12 } 13 #endregion
1 #region FTP文件上传 2 /// <summary> 3 /// 快速链接图片上传 4 /// </summary> 5 /// <param name="path">文件路径</param> 6 /// <param name="fileName">文件夹名</param> 7 /// <returns></returns> 8 public string FtpUpImage(string ftpFileName, string linkId, HttpPostedFileBase uploadImage) 9 { 10 string imgPath = string.Empty; //图片路径 11 string fileName = string.Empty; //文件名 12 string ftpPath = string.Empty; //FTP路径 13 14 fileName = uploadImage.FileName;//上传的图片名称 15 16 int len = fileName.Split('.').Length; 17 string extName = fileName.Split('.')[len - 1].ToString();//文件后缀名 18 string fName = linkId + "." + extName;//文件名 19 //判断本地是否存在这个文件夹 20 if (!Directory.Exists(Server.MapPath("../UploadFile/LinkImage"))) 21 { 22 Directory.CreateDirectory(Server.MapPath("../UploadFile/LinkImage")); 23 } 24 imgPath = Server.MapPath("../UploadFile/LinkImage/") + fName;//本地路径 25 uploadImage.SaveAs(imgPath); //保存到项目组中 26 27 #region 上传至FTP 28 //判断文件夹是否存在，并上传至FTP 29 if (CommonHelper.FtpCreateFolder(ftpFileName)) 30 { 31 string FTPServiceIP = ConfigurationManager.AppSettings["FTPServiceIP"]; //FTP服务器地址 32 string folderPath = string.Format("ftp://{0}/{1}", FTPServiceIP, ftpFileName); //FTP的文件夹路径 33 string fPath = string.Format("ftp://{0}/{1}/{2}", FTPServiceIP, ftpFileName, fName); //FTP的文件路径 34 35 //判断文件是否已存在，如果已存在则先删除文件再上传 37 if (!saveList.CheckDirectory(folderPath, fName)) 38 { 39 ftpPath = CommonHelper.FtpUploadCommon(imgPath, ftpFileName);//获取FTP的图片路径 40 } 41 else 42 { 43 saveList.DeleteFile(fPath);//删除FTP已存在的文件 44 ftpPath = CommonHelper.FtpUploadCommon(imgPath, ftpFileName);//获取FTP的图片路径 45 } 46 } 47 #endregion 51 52 //删除本地存储的图片 53 FileInfo file = new FileInfo(imgPath); 54 if (file.Exists) 55 { 56 file.Delete(); //删除单个文件 57 } 59 60 return ftpPath; 61 } 62 #endregion
//FTP上传公用方法
1 /// <summary> 2 /// FTP上传公用方法 3 /// </summary> 4 /// <param name="filename">源文件物理地址</param> 5 /// <param name="ftpFolderName">Ftp服务器上目录名称</param> 6 public static string FtpUploadCommon(string filename, string ftpFolderName) 7 { 8 string ftpServerIP = ConfigurationManager.AppSettings["FTPServiceIP"]; 9 string ftpUserID = ConfigurationManager.AppSettings["FTPUserName"]; 10 string ftpPassword = ConfigurationManager.AppSettings["FTPPwd"]; 11 string excelFolder = ftpFolderName; 12 string downLoadIp = ConfigurationManager.AppSettings["FTPView"]; 13 if (!downLoadIp.Substring(10).Contains("/")) 14 { 15 downLoadIp = downLoadIp + "/"; 16 } 17 18 FileInfo fileInf = new FileInfo(filename); 19 20 string downloadUrl = (downLoadIp.Contains("http://") ? string.Empty : "http://") + downLoadIp + excelFolder + "/" + fileInf.Name; 21 FtpWebRequest reqFTP; 22 23 // 根据uri创建FtpWebRequest对象 24 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + excelFolder + "/" + fileInf.Name)); 25 26 // ftp用户名和密码 27 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); 28 29 // 默认为true，连接不会被关闭 30 // 在一个命令之后被执行 31 reqFTP.KeepAlive = false; 32 33 // 指定执行什么命令 34 reqFTP.Method = WebRequestMethods.Ftp.UploadFile; 35 36 // 指定数据传输类型 37 reqFTP.UseBinary = true; 38 39 // 上传文件时通知服务器文件的大小 40 reqFTP.ContentLength = fileInf.Length; 41 42 // 缓冲大小设置为2kb 43 int buffLength = 2048; 44 45 byte[] buff = new byte[buffLength]; 46 int contentLen; 47 48 // 打开一个文件流 (System.IO.FileStream) 去读上传的文件 49 FileStream fs = fileInf.OpenRead(); 50 try 51 { 52 // 把上传的文件写入流 53 Stream strm = reqFTP.GetRequestStream(); 54 55 // 每次读文件流的2kb 56 contentLen = fs.Read(buff, 0, buffLength); 57 58 // 流内容没有结束 59 while (contentLen != 0) 60 { 61 // 把内容从file stream 写入 upload stream 62 strm.Write(buff, 0, contentLen); 63 64 contentLen = fs.Read(buff, 0, buffLength); 65 } 66 67 // 关闭两个流 68 strm.Close(); 69 fs.Close(); 70 return downloadUrl; 71 } 72 catch (Exception ex) 73 { 74 HttpContext.Current.Response.Write("Upload Error：" + ex.Message); 75 return string.Empty; 76 } 77 }
// FTP删除操作
1 #region FTP删除操作 2 /// <summary> 3 /// FTP删除操作 4 /// </summary> 5 /// <param name="ftpPath">路径</param> 6 /// <param name="userId">用户名</param> 7 /// <param name="pwd">密码</param> 8 /// <param name="fileName">文件名</param> 9 /// <returns></returns> 10 public string DeleteFile(string ftpPath) 11 { 12 string sRet = "删除成功！"; 13 FtpWebResponse Respose = null; 14 FtpWebRequest reqFTP = null; 15 Stream localfile = null; 16 Stream stream = null; 17 try 18 { 19 //根据uri创建FtpWebRequest对象 20 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpPath)); 21 22 //提供账号密码的验证 23 reqFTP.Credentials = new NetworkCredential(FTPUserName, FTPPwd); 24 25 //默认为true是上传完后不会关闭FTP连接 26 reqFTP.KeepAlive = false; 27 28 //执行删除操作 29 reqFTP.Method = WebRequestMethods.Ftp.DeleteFile; 30 31 Respose = (FtpWebResponse)reqFTP.GetResponse(); 32 } 33 catch (Exception ex) 34 { 35 sRet = ex.Message; 36 LogHelper.Error("Error", "TOpOfferSaveListBusiness.DeleteFile", ex); 37 } 38 39 finally 40 { 41 //关闭连接跟流 42 if (Respose != null) 43 Respose.Close(); 44 if (localfile != null) 45 localfile.Close(); 46 if (stream != null) 47 stream.Close(); 48 } 49 50 //返回执行状态 51 return sRet; 52 } 53 #endregion