C# FTP上传文件至服务器代码
/// <summary> /// 上传文件 /// </summary> /// <param name="fileinfo">需要上传的文件</param> /// <param name="targetDir">目标路径</param> /// <param name="hostname">ftp地址</param> /// <param name="username">ftp用户名</param> /// <param name="password">ftp密码</param> public static void UploadFile(FileInfo fileinfo, string targetDir, string hostname, string username, string password) { //1. check target string target; if (targetDir.Trim() == "") { return; } target = Guid.NewGuid().ToString(); //使用临时文件名 string URI = "FTP://" + hostname + "/" + targetDir + "/" + target; ///WebClient webcl = new WebClient(); System.Net.FtpWebRequest ftp = GetRequest(URI, username, password); //设置FTP命令 设置所要执行的FTP命令， //ftp.Method = System.Net.WebRequestMethods.Ftp.ListDirectoryDetails;//假设此处为显示指定路径下的文件列表 ftp.Method = System.Net.WebRequestMethods.Ftp.UploadFile; //指定文件传输的数据类型 ftp.UseBinary = true; ftp.UsePassive = true; //告诉ftp文件大小 ftp.ContentLength = fileinfo.Length; //缓冲大小设置为2KB const int BufferSize = 2048; byte[] content = new byte[BufferSize - 1 + 1]; int dataRead; //打开一个文件流 (System.IO.FileStream) 去读上传的文件 using (FileStream fs = fileinfo.OpenRead()) { try { //把上传的文件写入流 using (Stream rs = ftp.GetRequestStream()) { do { //每次读文件流的2KB dataRead = fs.Read(content, 0, BufferSize); rs.Write(content, 0, dataRead); } while (!(dataRead < BufferSize)); rs.Close(); } } catch (Exception ex) { } finally { fs.Close(); } } ftp = null; //设置FTP命令 ftp = GetRequest(URI, username, password); ftp.Method = System.Net.WebRequestMethods.Ftp.Rename; //改名 ftp.RenameTo = fileinfo.Name; try { ftp.GetResponse(); } catch (Exception ex) { ftp = GetRequest(URI, username, password); ftp.Method = System.Net.WebRequestMethods.Ftp.DeleteFile; //删除 ftp.GetResponse(); throw ex; } finally { //fileinfo.Delete(); } // 可以记录一个日志 "上传" + fileinfo.FullName + "上传到" + "FTP://" + hostname + "/" + targetDir + "/" + fileinfo.Name + "成功." ); ftp = null; #region /***** *FtpWebResponse * ****/ //FtpWebResponse ftpWebResponse = (FtpWebResponse)ftp.GetResponse(); #endregion }
/// <summary> /// 下载文件 /// </summary> /// <param name="localDir">下载至本地路径</param> /// <param name="FtpDir">ftp目标文件路径</param> /// <param name="FtpFile">从ftp要下载的文件名</param> /// <param name="hostname">ftp地址即IP</param> /// <param name="username">ftp用户名</param> /// <param name="password">ftp密码</param> public static void DownloadFile(string localDir, string FtpDir, string FtpFile, string hostname, string username, string password) { string URI = "FTP://" + hostname + "/" + FtpDir + "/" + FtpFile; string tmpname = Guid.NewGuid().ToString(); string localfile = localDir + @"\" + tmpname; System.Net.FtpWebRequest ftp = GetRequest(URI, username, password); ftp.Method = System.Net.WebRequestMethods.Ftp.DownloadFile; ftp.UseBinary = true; ftp.UsePassive = false; using (FtpWebResponse response = (FtpWebResponse)ftp.GetResponse()) { using (Stream responseStream = response.GetResponseStream()) { //loop to read & write to file using (FileStream fs = new FileStream(localfile, FileMode.CreateNew)) { try { byte[] buffer = new byte[2048]; int read = 0; do { read = responseStream.Read(buffer, 0, buffer.Length); fs.Write(buffer, 0, read); } while (!(read == 0)); responseStream.Close(); fs.Flush(); fs.Close(); } catch (Exception) { //catch error and delete file only partially downloaded fs.Close(); //delete target file as it's incomplete File.Delete(localfile); throw; } } responseStream.Close(); } response.Close(); } try { File.Delete(localDir + @"\" + FtpFile); File.Move(localfile, localDir + @"\" + FtpFile); ftp = null; ftp = GetRequest(URI, username, password); ftp.Method = System.Net.WebRequestMethods.Ftp.DeleteFile; ftp.GetResponse(); } catch (Exception ex) { File.Delete(localfile); throw ex; } // 记录日志 "从" + URI.ToString() + "下载到" + localDir + @"\" + FtpFile + "成功." ); ftp = null; } /// <summary> /// 搜索远程文件 /// </summary> /// <param name="targetDir"></param> /// <param name="hostname"></param> /// <param name="username"></param> /// <param name="password"></param> /// <param name="SearchPattern"></param> /// <returns></returns> public static List<string> ListDirectory(string targetDir, string hostname, string username, string password, string SearchPattern) { List<string> result = new List<string>(); try { string URI = "FTP://" + hostname + "/" + targetDir + "/" + SearchPattern; System.Net.FtpWebRequest ftp = GetRequest(URI, username, password); ftp.Method = System.Net.WebRequestMethods.Ftp.ListDirectory; ftp.UsePassive = true; ftp.UseBinary = true; string str = GetStringResponse(ftp); str = str.Replace("\r\n", "\r").TrimEnd('\r'); str = str.Replace("\n", "\r"); if (str != string.Empty) result.AddRange(str.Split('\r')); return result; } catch { } return null; } private static string GetStringResponse(FtpWebRequest ftp) { //Get the result, streaming to a string string result = ""; using (FtpWebResponse response = (FtpWebResponse)ftp.GetResponse()) { long size = response.ContentLength; using (Stream datastream = response.GetResponseStream()) { using (StreamReader sr = new StreamReader(datastream, System.Text.Encoding.Default)) { result = sr.ReadToEnd(); sr.Close(); } datastream.Close(); } response.Close(); } return result; }
/// 在ftp服务器上创建目录 /// </summary> /// <param name="dirName">创建的目录名称</param> /// <param name="ftpHostIP">ftp地址</param> /// <param name="username">用户名</param> /// <param name="password">密码</param> public void MakeDir(string dirName,string ftpHostIP,string username,string password) { try { string uri = "ftp://" + ftpHostIP + "/" + dirName; System.Net.FtpWebRequest ftp = GetRequest(uri, username, password); ftp.Method = WebRequestMethods.Ftp.MakeDirectory; FtpWebResponse response = (FtpWebResponse)ftp.GetResponse(); response.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }
/// <summary> /// 删除目录 /// </summary> /// <param name="dirName">创建的目录名称</param> /// <param name="ftpHostIP">ftp地址</param> /// <param name="username">用户名</param> /// <param name="password">密码</param> public void delDir(string dirName, string ftpHostIP, string username, string password) { try { string uri = "ftp://" + ftpHostIP + "/" + dirName; System.Net.FtpWebRequest ftp = GetRequest(uri, username, password); ftp.Method = WebRequestMethods.Ftp.RemoveDirectory; FtpWebResponse response = (FtpWebResponse)ftp.GetResponse(); response.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }
/// <summary> /// 文件重命名 /// </summary> /// <param name="currentFilename">当前目录名称</param> /// <param name="newFilename">重命名目录名称</param> /// <param name="ftpServerIP">ftp地址</param> /// <param name="username">用户名</param> /// <param name="password">密码</param> public void Rename(string currentFilename, string newFilename, string ftpServerIP, string username, string password) { try { FileInfo fileInf = new FileInfo(currentFilename); string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name; System.Net.FtpWebRequest ftp = GetRequest(uri, username, password); ftp.Method = WebRequestMethods.Ftp.Rename; ftp.RenameTo = newFilename; FtpWebResponse response = (FtpWebResponse)ftp.GetResponse(); response.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }
private static FtpWebRequest GetRequest(string URI, string username, string password) { //根据服务器信息FtpWebRequest创建类的对象 FtpWebRequest result = (FtpWebRequest)FtpWebRequest.Create(URI); //提供身份验证信息 result.Credentials = new System.Net.NetworkCredential(username, password); //设置请求完成之后是否保持到FTP服务器的控制连接，默认值为true result.KeepAlive = false; return result; } using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO; using System.Net;
/// <summary> /// 向Ftp服务器上传文件并创建和本地相同的目录结构 /// 遍历目录和子目录的文件 /// </summary> /// <param name="file"></param> private void GetFileSystemInfos(FileSystemInfo file) { string getDirecName=file.Name; if (!ftpIsExistsFile(getDirecName, "192.168.0.172", "Anonymous", "") && file.Name.Equals(FileName)) { MakeDir(getDirecName, "192.168.0.172", "Anonymous", ""); } if (!file.Exists) return; DirectoryInfo dire = file as DirectoryInfo; if (dire == null) return; FileSystemInfo[] files = dire.GetFileSystemInfos(); for (int i = 0; i < files.Length; i++) { FileInfo fi = files[i] as FileInfo; if (fi != null) { DirectoryInfo DirecObj=fi.Directory; string DireObjName = DirecObj.Name; if (FileName.Equals(DireObjName)) { UploadFile(fi, DireObjName, "192.168.0.172", "Anonymous", ""); } else { Match m = Regex.Match(files[i].FullName, FileName + "+.*" + DireObjName); //UploadFile(fi, FileName+"/"+DireObjName, "192.168.0.172", "Anonymous", ""); UploadFile(fi, m.ToString(), "192.168.0.172", "Anonymous", ""); } } else { string[] ArrayStr = files[i].FullName.Split('\\'); string finame=files[i].Name; Match m=Regex.Match(files[i].FullName,FileName+"+.*"+finame); //MakeDir(ArrayStr[ArrayStr.Length - 2].ToString() + "/" + finame, "192.168.0.172", "Anonymous", ""); MakeDir(m.ToString(), "192.168.0.172", "Anonymous", ""); GetFileSystemInfos(files[i]); } } }
/// <summary> /// 判断ftp服务器上该目录是否存在 /// </summary> /// <param name="dirName"></param> /// <param name="ftpHostIP"></param> /// <param name="username"></param> /// <param name="password"></param> /// <returns></returns> private bool ftpIsExistsFile(string dirName, string ftpHostIP, string username, string password) { bool flag = true; try { string uri = "ftp://" + ftpHostIP + "/" + dirName; System.Net.FtpWebRequest ftp = GetRequest(uri, username, password); ftp.Method = WebRequestMethods.Ftp.ListDirectory; FtpWebResponse response = (FtpWebResponse)ftp.GetResponse(); response.Close(); } catch (Exception ) { flag = false; } return flag; }
/// <summary> /// method to check the existance of a file on the server /// </summary> /// <param name="fileName">file name e.g file1.txt</param> /// <param name="strFTPPath">FTP server path i.e: ftp://yourserver/foldername</param> /// <param name="strftpUserID">username</param> /// <param name="strftpPassword">password</param> /// <returns>true (if file exists) or false</returns> public bool CheckFTPFile(string fileName, string strFTPPath, string strftpUserID, string strftpPassword) { FtpWebRequest reqFTP; // dirName = name of the directory to create. reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(strFTPPath)); reqFTP.Method = WebRequestMethods.Ftp.ListDirectory; reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(strftpUserID, strftpPassword); FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); StreamReader ftpStream = new StreamReader(response.GetResponseStream()); List<string> files = new List<string>(); string line = ftpStream.ReadLine(); while (line != null) { files.Add(line); line = ftpStream.ReadLine(); } ftpStream.Close(); response.Close(); return files.Contains(fileName); }
转载：http://www.cnblogs.com/wuhuisheng/archive/2012/08/14/2638020.html
