这期内容当中小编将会给大家带来有关FTP的文件如何管理,文章内容丰富且以专业的角度为大家分析和叙述,阅读完这篇文章希望大家可以有所收获。
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设置站点名称和路径。
设置ip。
身份授权选择所有用户,可以读写。
完成之后 IIS就会出现:
计算机-->管理-->本地用户和组。 添加用户,描述为FTP。
这里要设置用户的密码方式,去掉“用户下次登录时必须更改密码”的选项。
不然会登录不成功。报530错误。
ftp ip 就可以访问。显示230 user logged in 表示登录成功。
FtpHelper:
public static class FtpHelper { //基本设置 private const string Path = @"ftp://192.168.253.4:21/"; //目标路径 private const string Ftpip = "192.168.253.4"; // GetAppConfig("obj"); //ftp IP地址 private const string Username = "stone"; //GetAppConfig("username"); //ftp用户名 private const string Password = "111111"; //GetAppConfig("password"); //ftp密码 // 2M 可能不够 private const int bufferSize = 2048; /// <summary> /// 获取自定义配置的值 /// </summary> /// <param name="strKey">键值</param> /// <returns>键值对应的值</returns> public static string GetAppConfig(string strKey) { foreach (string key in ConfigurationManager.AppSettings) { if (key == strKey) { return ConfigurationManager.AppSettings[strKey]; } } return null; } //获取ftp上面的文件和文件夹 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("获取ftp上面的文件和文件夹:" + ex.Message); return new[] {""}; } } /// <summary> /// 获取文件大小 /// </summary> /// <param name="file">ip服务器下的相对路径</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); //设置用户名和密码 request.Method = WebRequestMethods.Ftp.GetFileSize; var dataLength = (int) request.GetResponse().ContentLength; return dataLength; } catch (Exception ex) { Console.WriteLine("获取文件大小出错:" + ex.Message); return -1; } } /// <summary> /// 文件上传 /// </summary> /// <param name="localFile">原路径(绝对路径)包括文件名</param> /// <param name="remoteFile">目标文件夹:服务器下的相对路径 不填为根目录</param> public static bool UpLoad(string localFile, string remoteFile = "") { try { string url = Path; if (remoteFile != "") url += remoteFile + "/"; try { //待上传的文件 (全路径) 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()) { //设置缓冲大小 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("上传文件成功"); return true; } } } catch (Exception ex) { Console.WriteLine("上传文件失败错误为" + ex.Message); } finally { } } catch (Exception ex) { Console.WriteLine("上传文件失败错误为" + ex.Message); } finally { } } catch (Exception ex) { Console.WriteLine("上传文件失败错误为" + 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)); //设置连接到FTP的帐号密码 reqFtp.Credentials = new NetworkCredential(Username, Password); //设置请求完成后是否保持连接 reqFtp.KeepAlive = false; //指定执行命令 reqFtp.Method = method; //指定数据传输类型 reqFtp.UseBinary = true; if (closedResponse) { var resp=reqFtp.GetResponse(); resp.Close(); } return reqFtp; } /// <summary> /// 下载 /// </summary> /// <param name="localFile">目的位置</param> /// <param name="remoteFile">服务器相对位置</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> /// 删除文件 /// </summary> /// <param name="fileName">服务器下的相对路径 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("删除文件出错:" + ex.Message); } } /// <summary> /// 新建目录 上一级必须先存在 /// </summary> /// <param name="dirName">服务器下的相对路径</param> public static void MakeDir(string dirName) { try { FtpRequest(Path + dirName, WebRequestMethods.Ftp.MakeDirectory, true); } catch (Exception ex) { Console.WriteLine("创建目录出错:" + ex.Message); } } /// <summary> /// 删除目录 上一级必须先存在 /// </summary> /// <param name="dirName">服务器下的相对路径</param> public static void DelDir(string dirName) { try { FtpRequest(Path + dirName, WebRequestMethods.Ftp.RemoveDirectory,true); } catch (Exception ex) { Console.WriteLine("删除目录出错:" + ex.Message); } } /// <summary> /// 从ftp服务器上获得文件夹列表 /// </summary> /// <param name="requedstPath">服务器下的相对路径</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("获取目录出错:" + ex.Message); } return strs; } /// <summary> /// 从ftp服务器上获得文件列表 /// </summary> /// <param name="requedstPath">服务器下的相对路径</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("获取文件出错:" + ex.Message); } return strs; } }
View Code
主要是通过创建FtpRequest来处理Ftp相关请求。
public static FtpWebRequest FtpRequest(string requstUrl,string method,bool closedResponse=false) { var reqFtp = (FtpWebRequest) WebRequest.Create(new Uri(requstUrl)); //设置连接到FTP的帐号密码 reqFtp.Credentials = new NetworkCredential(Username, Password); //设置请求完成后是否保持连接 reqFtp.KeepAlive = false; //指定执行命令 reqFtp.Method = method; //指定数据传输类型 reqFtp.UseBinary = true; if (closedResponse) { var resp=reqFtp.GetResponse(); resp.Close(); } return reqFtp; }
因为在MVC网站中使用的文件流的方式。
下载:
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; }
调用:
public ActionResult DownloadFileFromFtp() { var filepath = "DIAView//simple.png"; var stream = FtpHelper.Download(filepath); return File(stream, FileHelper.GetContentType(".png"),"test.png"); }
上传:
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; }
调用:
[HttpPost] public JsonResult UploadFile(HttpPostedFileBase fileData) { if (fileData != null) { string fileName = Path.GetFileName(fileData.FileName);// 原始文件名称 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 = "请选择要上传的文件!" }, JsonRequestBehavior.AllowGet); }
Ftp还可以设置不同用户有不同的目录,是以为记
上述就是小编为大家分享的FTP的文件如何管理了,如果刚好有类似的疑惑,不妨参照上述分析进行理解。如果想知道更多相关知识,欢迎关注创新互联行业资讯频道。
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名称栏目:FTP的文件如何管理-创新互联
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