Ftp上传下载
1 Ftp 上传 2 3 //上传FTP 4 public static string UpFtpServer="192.168.100.111"; 5 public static string UpUserID= "sa"; 6 public static string UpPassWord = "123456"; 7 8 private void btnUp_Click(object sender, EventArgs e) 9 { 10 try 11 { 12 upFile(); 13 } 14 catch (Exception ex) 15 { 16 MessageBoxEx.Show("上传文件发生错误,错误信息:" + ex.Message, "注意", MessageBoxButtons.OK, MessageBoxIcon.Information); 17 } 18 } 19 20 //上传文件到ftp 21 private void upFile() 22 { 23 24 #region 上传的文件路径 25 string directoryPath = System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName; 26 int nIndex = directoryPath.LastIndexOf("\\"); 27 directoryPath = directoryPath.Substring(0, nIndex); 28 directoryPath += "\\InData\\"; 29 #endregion 30 string[] fileName = Directory.GetFiles(directoryPath, "*.txt"); 31 32 Array array = Array.CreateInstance(typeof(string), fileName.Length); 33 34 fileName.CopyTo(array, 0); 35 IList<string> successname = new List<string>(); 36 IList<string> failname = new List<string>(); 37 38 string address = "", userName = "", pass = "", Report = ""; 39 40 for (int i = 0; i < array.Length; i++) 41 { 42 if (File.Exists(array.GetValue(i).ToString())) 43 { 44 FileInfo fi = new FileInfo(array.GetValue(i).ToString()); 45 FileStream fs = fi.OpenRead(); //以只读的模式创建一个文件流 46 Stream s = null; 47 try 48 { 49 address = UpFtpServer.Trim(); 50 address = address.ToUpper().IndexOf("FTP://") < 0 ? ("FTP://" + address) : address; 51 userName = UpUserID.Trim(); 52 pass = UpPassWord.Trim(); 53 54 FtpWebRequest fwr = (FtpWebRequest)FtpWebRequest.Create(address + "/InData/" + Path.GetFileName(array.GetValue(i).ToString()));//创建一个ftpwebrequest对象 55 56 fwr.Credentials = new NetworkCredential(userName, pass); 57 58 fwr.KeepAlive = true; //执行完一次命令后是否保持连接 59 fwr.Method = WebRequestMethods.Ftp.UploadFile; //指出要执行的命令方式 60 fwr.UseBinary = true; //指出文件的数据传输类型 61 fwr.UsePassive = true; 62 63 int length = unchecked(Convert.ToInt32(fi.Length)); 64 fwr.ContentLength = length; 65 s = fwr.GetRequestStream(); 66 67 if (length <= 1000 * 1024) //文件上传的大小不能大于1000KB足够啦 68 { 69 byte[] b = new byte[length]; 70 //先利用一个fileinfo跟一个文本文件关联起来 然后利用fileinfo的openread以只读的方式打开文本文件 71 //并返回一个filestream文件流 72 fs.Read(b, 0, length); 73 s.Write(b, 0, length); 74 75 if (successname.IndexOf(array.GetValue(i).ToString()) < 0) 76 { 77 successname.Add(array.GetValue(i).ToString()); 78 } 79 80 Report = Report + "," + Path.GetFileName(array.GetValue(i).ToString()); 81 } 82 83 fs.Close(); 84 s.Close(); 85 } 86 catch (Exception) 87 { 88 if (failname.IndexOf(array.GetValue(i).ToString()) < 0) 89 { 90 failname.Add(array.GetValue(i).ToString()); 91 } 92 } 93 finally 94 { 95 fs.Close(); 96 } 97 } 98 99 } 100 101 foreach (string filename in successname) 102 { 103 if (failname.IndexOf(filename) < 0) 104 { 105 File.Delete(filename); //上传完毕后就删除 106 } 107 } 108 MessageBoxEx.Show("本次共成功上传了" + successname.Count.ToString() + "个文件,失败" + failname.Count.ToString() + "个！", "注意", MessageBoxButtons.OK, MessageBoxIcon.Information); 109 }
1 2 private void btnDownlod_Click(object sender, EventArgs e) 3 { 4 try 5 { 6 #region 下载 7 //获取下载文件的文件名 8 List<string> DirctoryFile = GetDirctory("//"); 9 MessageBox.Show("读取文件成功，共读取文件" + DirctoryFile.Count() + "条数据"); 10 for (int i = 0; i < DirctoryFile.Count; i++) 11 { 12 13 //下载 14 if (download(DirctoryFile[i])) 15 { 16 17 } 18 19 } 20 21 MessageBox.Show("下载成功,共下载" + DirctoryFile.Count() + "个文件"); 22 #endregion 23 } 24 catch 25 { } 26 27 } 28 29 30 /// 从ftp服务器上获得文件列表 31 /// </summary> 32 /// <param name="RequedstPath">服务器下的相对路径</param> 33 /// <returns></returns> 34 public List<string> GetDirctory(string RequedstPath) 35 { 36 List<string> strs = new List<string>(); 37 try 38 { 39 string uri = "FTP://" + UpFtpServer + "/Download" + RequedstPath; //目标路径 path为服务器地址 40 FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri)); 41 // ftp用户名和密码 42 reqFTP.Credentials = new NetworkCredential(UpUserID, UpPassWord); 43 reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails; 44 WebResponse response = reqFTP.GetResponse(); 45 StreamReader reader = new StreamReader(response.GetResponseStream());//中文文件名 46 string line = reader.ReadLine(); 47 while (line != null) 48 { 49 if (!line.Contains("<DIR>")) //不是文件夹 50 { 51 //string msg = line.Substring(39).ToUpper().Trim(); 52 string[] msgArray = line.Split(' '); 53 string msg = msgArray[msgArray.Count() - 1].ToString(); 54 if (msg.LastIndexOf("TXT") > 0) 55 { 56 strs.Add(msg); 57 } 58 59 } 60 line = reader.ReadLine(); 61 } 62 reader.Close(); 63 response.Close(); 64 return strs; 65 } 66 catch (Exception ex) 67 { 68 ex.ToString(); 69 } 70 return strs; 71 } 72 /// <summary> 73 /// 单个文件下载方法 74 /// </summary> 75 /// <param name="adss">保存文件的本地路径</param> 76 /// <param name="ftpadss">下载文件的FTP路径</param> 77 public bool download(string adss) 78 { 79 bool IsOk = false; 80 81 try 82 { 83 string directoryPath = System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName; 84 int nIndex = directoryPath.LastIndexOf("\\"); 85 directoryPath = directoryPath.Substring(0, nIndex); 86 directoryPath += "/Download/"; 87 //FileMode常数确定如何打开或创建文件,指定操作系统应创建新文件。 88 //FileMode.Create如果文件已存在，它将被改写 89 FileStream outputStream = new FileStream(directoryPath + adss, FileMode.Create); 90 FtpWebRequest downRequest = (FtpWebRequest)WebRequest.Create(new Uri("FTP://" + UpFtpServer + "/Download/" + adss.ToString())); 91 downRequest.Credentials = new NetworkCredential(UpUserID, UpPassWord); 92 //设置要发送到 FTP 服务器的命令 93 downRequest.Method = WebRequestMethods.Ftp.DownloadFile; 94 downRequest.KeepAlive = true; //执行完一次命令后是否保持连接 95 downRequest.UseBinary = true; //指出文件的数据传输类型 96 downRequest.UsePassive = true; 97 FtpWebResponse response = (FtpWebResponse)downRequest.GetResponse(); 98 99 Stream ftpStream = response.GetResponseStream(); 100 long cl = response.ContentLength; 101 int bufferSize = 2048; 102 int readCount; 103 byte[] buffer = new byte[bufferSize]; 104 readCount = ftpStream.Read(buffer, 0, bufferSize); 105 106 while (readCount > 0) 107 { 108 outputStream.Write(buffer, 0, readCount); 109 readCount = ftpStream.Read(buffer, 0, bufferSize); 110 } 111 112 ftpStream.Close(); 113 outputStream.Close(); 114 response.Close(); 115 116 117 IsOk = true; 118 119 } 120 catch (Exception ex) 121 { 122 MessageBox.Show(ex.ToString()); 123 124 IsOk = false; 125 } 126 127 128 return IsOk; 129 130 }
