FTP的文件管理

來(lái)源：懂視網(wǎng) 責(zé)編：小采時(shí)間：2020-11-27 15:25:48

FTP的文件管理

FTP的文件管理:這次給大家?guī)?lái)FTP的文件管理，對(duì)FTP文件進(jìn)行管理的注意事項(xiàng)有哪些，下面就是實(shí)戰(zhàn)案例，一起來(lái)看一下。因?yàn)榫W(wǎng)站有下載文件需要和網(wǎng)站分離，使用到了FTP管理文件，這里做一個(gè)簡(jiǎn)單的整理。1.安裝FTP 和安裝iis一樣。全部勾選。設(shè)置站點(diǎn)名稱和路徑。設(shè)置i

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點(diǎn)擊下載本文 文檔為doc格式

導(dǎo)讀FTP的文件管理:這次給大家?guī)?lái)FTP的文件管理，對(duì)FTP文件進(jìn)行管理的注意事項(xiàng)有哪些，下面就是實(shí)戰(zhàn)案例，一起來(lái)看一下。因?yàn)榫W(wǎng)站有下載文件需要和網(wǎng)站分離，使用到了FTP管理文件，這里做一個(gè)簡(jiǎn)單的整理。1.安裝FTP 和安裝iis一樣。全部勾選。設(shè)置站點(diǎn)名稱和路徑。設(shè)置i

這次給大家?guī)?lái)FTP的文件管理，對(duì)FTP文件進(jìn)行管理的注意事項(xiàng)有哪些，下面就是實(shí)戰(zhàn)案例，一起來(lái)看一下。

因?yàn)榫W(wǎng)站有下載文件需要和網(wǎng)站分離，使用到了FTP管理文件，這里做一個(gè)簡(jiǎn)單的整理。

1.安裝FTP

和安裝iis一樣。全部勾選。

設(shè)置站點(diǎn)名稱和路徑。

設(shè)置ip。

身份授權(quán)選擇所有用戶，可以讀寫。

完成之后 IIS就會(huì)出現(xiàn)：

2.添加FTP用戶

計(jì)算機(jī)-->管理-->本地用戶和組。添加用戶，描述為FTP。

這里要設(shè)置用戶的密碼方式，去掉“用戶下次登錄時(shí)必須更改密碼”的選項(xiàng)。

不然會(huì)登錄不成功。報(bào)530錯(cuò)誤。

3.測(cè)試登錄

ftp ip 就可以訪問。顯示230 user logged in 表示登錄成功。

4.上傳下載

FtpHelper:

 public static class FtpHelper
 { //基本設(shè)置
 private const string Path = @"ftp://192.168.253.4:21/"; //目標(biāo)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(duì)應(yīng)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(wù)器下的相對(duì)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(shè)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(cuò)：" + ex.Message); return -1;
 }
 } /// <summary>
 /// 文件上傳 /// </summary>
 /// <param name="localFile">原路徑（絕對(duì)路徑）包括文件名</param>
 /// <param name="remoteFile">目標(biāo)文件夾：服務(wù)器下的相對(duì)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）
 try
 { 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(shè)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(cuò)誤為" + ex.Message);
 } finally
 {
 }
 } catch (Exception ex)
 {
 Console.WriteLine("上傳文件失敗錯(cuò)誤為" + ex.Message);
 } finally
 {
 }
 } catch (Exception ex)
 {
 Console.WriteLine("上傳文件失敗錯(cuò)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(shè)置連接到FTP的帳號(hào)密碼
 reqFtp.Credentials = new NetworkCredential(Username, Password); //設(shè)置請(qǐng)求完成后是否保持連接
 reqFtp.KeepAlive = false; //指定執(zhí)行命令
 reqFtp.Method = method; //指定數(shù)據(jù)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(wù)器相對(duì)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(wù)器下的相對(duì)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(cuò)：" + ex.Message);
 }
 } /// <summary>
 /// 新建目錄 上一級(jí)必須先存在 /// </summary>
 /// <param name="dirName">服務(wù)器下的相對(duì)路徑</param>
 public static void MakeDir(string dirName)
 { try
 {
 FtpRequest(Path + dirName, WebRequestMethods.Ftp.MakeDirectory, true);
 } catch (Exception ex)
 {
 Console.WriteLine("創(chuàng)建目錄出錯(cuò)：" + ex.Message);
 }
 } /// <summary>
 /// 刪除目錄 上一級(jí)必須先存在 /// </summary>
 /// <param name="dirName">服務(wù)器下的相對(duì)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(cuò)：" + ex.Message);
 }
 } /// <summary>
 /// 從ftp服務(wù)器上獲得文件夾列表 /// </summary>
 /// <param name="requedstPath">服務(wù)器下的相對(duì)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(cuò)：" + ex.Message);
 } return strs;
 } /// <summary>
 /// 從ftp服務(wù)器上獲得文件列表 /// </summary>
 /// <param name="requedstPath">服務(wù)器下的相對(duì)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(cuò)：" + ex.Message);
 } return strs;
 }
 }

View Code

主要是通過創(chuàng)建FtpRequest來(lái)處理Ftp相關(guān)請(qǐng)求。

 public static FtpWebRequest FtpRequest(string requstUrl,string method,bool closedResponse=false)
 { var reqFtp = (FtpWebRequest) WebRequest.Create(new Uri(requstUrl)); //設(shè)置連接到FTP的帳號(hào)密碼
 reqFtp.Credentials = new NetworkCredential(Username, Password); //設(shè)置請(qǐng)求完成后是否保持連接
 reqFtp.KeepAlive = false; //指定執(zhí)行命令
 reqFtp.Method = method; //指定數(shù)據(jù)傳輸類型
 reqFtp.UseBinary = true; if (closedResponse)
 { var resp=reqFtp.GetResponse();
 resp.Close();
 } return reqFtp;
 }

因?yàn)樵贛VC網(wǎng)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(diào)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(diào)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(qǐng)選擇要上傳的文件！" }, JsonRequestBehavior.AllowGet);
 }

Ftp還可以設(shè)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(jīng)掌握了方法，更多精彩請(qǐng)關(guān)注Gxl網(wǎng)其它相關(guān)文章！