因為網站有下載文件需要和網站分離，使用到了FTP管理文件，這里做一個簡單的整理。
1.安裝FTP和安裝iis一樣。全部勾選。
設置站點名稱和路徑。
設置ip。
身份授權選擇所有用戶，可以讀寫。
完成之后 IIS就會出現：
計算機-- 管理-- 本地用戶和組。 添加用戶，描述為FTP。
這里要設置用戶的密碼方式，去掉“用戶下次登錄時必須更改密碼”的選項。
不然會登錄不成功。報530錯誤。
3.測試登錄ftp ip 就可以訪問。顯示230 user logged in 表示登錄成功。
FtpHelper:
html' target='_blank'>public static class FtpHelper { //基本設置 private const string Path = @ ftp://192.168.253.4:21/ //目標路徑 private const string Ftpip = 192.168.253.4 // GetAppConfig( obj //ftp IP地址 private const string Username = stone //GetAppConfig( username //ftp用戶名 private const string Password = 111111 //GetAppConfig( password //ftp密碼 // 2M 可能不夠 private const int bufferSize = 2048; /// summary /// 獲取自定義配置的值 /// /summary /// param name= strKey 鍵值 /param /// returns 鍵值對應的值 /returns public static string GetAppConfig(string strKey) { foreach (string key in ConfigurationManager.AppSettings) { if (key == strKey) { return ConfigurationManager.AppSettings[strKey]; } return null; } //獲取ftp上面的文件和文件夾 public static string[] GetFileList(string dir) { var result = new StringBuilder(); try { var ftpRequest = FtpRequest(Path, WebRequestMethods.Ftp.ListDirectory); WebResponse response = ftpRequest.GetResponse(); var reader = new StreamReader(response.GetResponseStream()); string line = reader.ReadLine(); while (line != null) result.Append(line); result.Append( /n Console.WriteLine(line); line = reader.ReadLine(); } // to remove the trailing /n result.Remove(result.ToString().LastIndexOf( /n ), 1); reader.Close(); response.Close(); return result.ToString().Split( /n } catch (Exception ex) Console.WriteLine( 獲取ftp上面的文件和文件夾： + ex.Message); return new[] { } /// summary /// 獲取文件大小 /// /summary /// param name= file ip服務器下的相對路徑 /param /// returns 文件大小 /returns public static int GetFileSize(string file) { var result = new StringBuilder(); FtpWebRequest request; try request = (FtpWebRequest) WebRequest.Create(new Uri(Path + file)); request.UseBinary = true; request.Credentials = new NetworkCredential(Username, Password); //設置用戶名和密碼 request.Method = WebRequestMethods.Ftp.GetFileSize; var dataLength = (int) request.GetResponse().ContentLength; return dataLength; } catch (Exception ex) Console.WriteLine( 獲取文件大小出錯： + ex.Message); return -1; } /// summary /// 文件上傳 /// /summary /// param name= localFile 原路徑（絕對路徑）包括文件名 /param /// param name= remoteFile 目標文件夾：服務器下的相對路徑 不填為根目錄 /param public static bool UpLoad(string localFile, string remoteFile = ) { try { string url = Path; if (remoteFile != ) url += remoteFile + / try { //待上傳的文件 （全路徑） { var fileInfo = new FileInfo(localFile); using (FileStream fs = fileInfo.OpenRead()) { long length = fs.Length; FtpWebRequest reqFtp = FtpRequest(url + fileInfo.Name,WebRequestMethods.Ftp.UploadFile); using (Stream stream = reqFtp.GetRequestStream()) { //設置緩沖大小 int BufferLength = 5120; var b = new byte[BufferLength]; int i; while ((i = fs.Read(b, 0, BufferLength)) 0) stream.Write(b, 0, i); Console.WriteLine( 上傳文件成功 return true; } catch (Exception ex) Console.WriteLine( 上傳文件失敗錯誤為 + ex.Message); } finally } catch (Exception ex) Console.WriteLine( 上傳文件失敗錯誤為 + ex.Message); } finally } catch (Exception ex) Console.WriteLine( 上傳文件失敗錯誤為 + ex.Message); } return false; } public static bool UpLoad(Stream localFileStream, string remoteFile) { bool result = true; try { var ftpRequest = FtpRequest(Path + remoteFile, WebRequestMethods.Ftp.UploadFile); var ftpStream = ftpRequest.GetRequestStream(); var byteBuffer = new byte[bufferSize]; int bytesSent = localFileStream.Read(byteBuffer, 0, bufferSize); try { while (bytesSent != 0) ftpStream.Write(byteBuffer, 0, bytesSent); bytesSent = localFileStream.Read(byteBuffer, 0, bufferSize); } catch (Exception ex) Console.WriteLine(ex.ToString()); result = false; localFileStream.Close(); ftpStream.Close(); } catch (Exception ex) Console.WriteLine(ex.ToString()); result = false; } return result; } public static FtpWebRequest FtpRequest(string requstUrl,string method,bool closedResponse=false) { var reqFtp = (FtpWebRequest) WebRequest.Create(new Uri(requstUrl)); //設置連接到FTP的帳號密碼 reqFtp.Credentials = new NetworkCredential(Username, Password); //設置請求完成后是否保持連接 reqFtp.KeepAlive = false; //指定執行命令 reqFtp.Method = method; //指定數據傳輸類型 reqFtp.UseBinary = true; if (closedResponse) { var resp=reqFtp.GetResponse(); resp.Close(); } return reqFtp; } /// summary /// 下載 /// /summary /// param name= localFile 目的位置 /param /// param name= remoteFile 服務器相對位置 /param /// returns /returns public static bool Download(string localFile,string remoteFile) { bool check = true; try { var outputStream = new FileStream(localFile, FileMode.Create); var ftpRequest = FtpRequest(Path + remoteFile, WebRequestMethods.Ftp.DownloadFile); var response = (FtpWebResponse)ftpRequest.GetResponse(); Stream ftpStream = response.GetResponseStream(); long cl = response.ContentLength; int bufferSize = 2048; int readCount; var buffer = new byte[bufferSize]; readCount = ftpStream.Read(buffer, 0, bufferSize); while (readCount 0) outputStream.Write(buffer, 0, readCount); readCount = ftpStream.Read(buffer, 0, bufferSize); ftpStream.Close(); outputStream.Close(); response.Close(); } catch (Exception err) check = false; } return check; } public static Stream Download(string remoteFile) { var ftpRequest = FtpRequest(Path + remoteFile, WebRequestMethods.Ftp.DownloadFile); var response = (FtpWebResponse)ftpRequest.GetResponse(); Stream ftpStream = response.GetResponseStream(); return ftpStream; } /// summary /// 刪除文件 /// /summary /// param name= fileName 服務器下的相對路徑 包括文件名 /param public static void DeleteFileName(string fileName) { try FtpRequest(Path + fileName, WebRequestMethods.Ftp.DeleteFile,true); } catch (Exception ex) Console.WriteLine( 刪除文件出錯： + ex.Message); } /// summary /// 新建目錄 上一級必須先存在 /// /summary /// param name= dirName 服務器下的相對路徑 /param public static void MakeDir(string dirName) { try FtpRequest(Path + dirName, WebRequestMethods.Ftp.MakeDirectory, true); } catch (Exception ex) Console.WriteLine( 創建目錄出錯： + ex.Message); } /// summary /// 刪除目錄 上一級必須先存在 /// /summary /// param name= dirName 服務器下的相對路徑 /param public static void DelDir(string dirName) { try FtpRequest(Path + dirName, WebRequestMethods.Ftp.RemoveDirectory,true); } catch (Exception ex) Console.WriteLine( 刪除目錄出錯： + ex.Message); } /// summary /// 從ftp服務器上獲得文件夾列表 /// /summary /// param name= requedstPath 服務器下的相對路徑 /param /// returns /returns public static List string GetDirctory(string requedstPath) { var strs = new List string try { var reqFtp = FtpRequest(Path + requedstPath, WebRequestMethods.Ftp.ListDirectoryDetails); WebResponse response = reqFtp.GetResponse(); var reader = new StreamReader(response.GetResponseStream()); //中文文件名 string line = reader.ReadLine(); while (line != null) { if (line.Contains( DIR )) { string msg = line.Substring(line.LastIndexOf( DIR ) + 5).Trim(); strs.Add(msg); line = reader.ReadLine(); reader.Close(); response.Close(); return strs; } catch (Exception ex) Console.WriteLine( 獲取目錄出錯： + ex.Message); } return strs; } /// summary /// 從ftp服務器上獲得文件列表 /// /summary /// param name= requedstPath 服務器下的相對路徑 /param /// returns /returns public static List string GetFile(string requedstPath) { var strs = new List string try { var reqFtp = FtpRequest(Path + requedstPath, WebRequestMethods.Ftp.ListDirectoryDetails); WebResponse response = reqFtp.GetResponse(); var reader = new StreamReader(response.GetResponseStream()); //中文文件名 string line = reader.ReadLine(); while (line != null) { if (!line.Contains( DIR )) { string msg = line.Substring(39).Trim(); strs.Add(msg); line = reader.ReadLine(); reader.Close(); response.Close(); return strs; } catch (Exception ex) Console.WriteLine( 獲取文件出錯： + ex.Message); } return strs; }
View Code
主要是通過創建FtpRequest來處理Ftp相關請求。
public static FtpWebRequest FtpRequest(string requstUrl,string method,bool closedResponse=false) { var reqFtp = (FtpWebRequest) WebRequest.Create(new Uri(requstUrl)); //設置連接到FTP的帳號密碼 reqFtp.Credentials = new NetworkCredential(Username, Password); //設置請求完成后是否保持連接 reqFtp.KeepAlive = false; //指定執行命令 reqFtp.Method = method; //指定數據傳輸類型 reqFtp.UseBinary = true; if (closedResponse) { var resp=reqFtp.GetResponse(); resp.Close(); } return reqFtp; }因為在MVC網站中使用的文件流的方式。
下載：
public static Stream Download(string remoteFile) { var ftpRequest = FtpRequest(Path + remoteFile, WebRequestMethods.Ftp.DownloadFile); var response = (FtpWebResponse)ftpRequest.GetResponse(); Stream ftpStream = response.GetResponseStream(); return ftpStream; }調用：
public ActionResult DownloadFileFromFtp() { var filepath = DIAView//simple.png var stream = FtpHelper.Download(filepath); return File(stream, FileHelper.GetContentType( .png ), test.png }上傳：
public static bool UpLoad(Stream localFileStream, string remoteFile) { bool result = true; try { var ftpRequest = FtpRequest(Path + remoteFile, WebRequestMethods.Ftp.UploadFile); var ftpStream = ftpRequest.GetRequestStream(); var byteBuffer = new byte[bufferSize]; int bytesSent = localFileStream.Read(byteBuffer, 0, bufferSize); try { while (bytesSent != 0) ftpStream.Write(byteBuffer, 0, bytesSent); bytesSent = localFileStream.Read(byteBuffer, 0, bufferSize); } catch (Exception ex) Console.WriteLine(ex.ToString()); result = false; localFileStream.Close(); ftpStream.Close(); } catch (Exception ex) Console.WriteLine(ex.ToString()); result = false; } return result; }調用：
[HttpPost] public JsonResult UploadFile(HttpPostedFileBase fileData) { if (fileData != null) { string fileName = Path.GetFileName(fileData.FileName);// 原始文件名稱 string saveName = Encrypt.GenerateOrderNumber() + _ +fileName; FtpHelper.UpLoad(fileData.InputStream, DIAView + / + saveName); return Json(new { Success = true, FileName = fileName, SaveName = saveName}, JsonRequestBehavior.AllowGet); } return Json(new { Success = false, Message = 請選擇要上傳的文件！ }, JsonRequestBehavior.AllowGet); }Ftp還可以設置不同用戶有不同的目錄，是以為記
相信看了本文案例你已經掌握了方法，更多精彩請關注php 其它相關文章！
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