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 }
FtpUploadCommon
// 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
DeleteFile