FTP下载帮助类
using System; using System.Collections.Generic; using System.Text; using System.IO; using System.Net; namespace FTPHelper { /// <summary> /// FTP帮助类 /// </summary> public class FTPHelper { #region 字段 private string ftpURI; private string ftpPort; private string ftpUserID; private string ftpServerIP; private string ftpPassword; private string ftpRemotePath; #endregion /// <summary> /// 连接FTP服务器 /// </summary> /// <param name="FtpServerIP">FTP连接地址</param> /// <param name="FtpRemotePath">指定FTP连接成功后的当前目录, 如果不指定即默认为根目录</param> /// <param name="FtpUserID">用户名</param> /// <param name="FtpPassword">密码</param> public FTPHelper(string FtpServerIP, string FtpPort, string FtpUserID, string FtpPassword) { ftpServerIP = FtpServerIP; ftpPort = FtpPort; ftpUserID = FtpUserID; ftpPassword = FtpPassword; ftpURI = "ftp://" + ftpServerIP + ":" + ftpPort; } /// <summary> /// 上传 /// </summary> public void Upload(string filename) { FileInfo fileInf = new FileInfo(filename); FtpWebRequest reqFTP; reqFTP = (FtpWebRequest) FtpWebRequest.Create(new Uri(ftpURI + fileInf.Name)); reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); reqFTP.Method = WebRequestMethods.Ftp.UploadFile; reqFTP.KeepAlive = false; reqFTP.UseBinary = true; reqFTP.ContentLength = fileInf.Length; int buffLength = 2048; byte[] buff = new byte[buffLength]; int contentLen; FileStream fs = fileInf.OpenRead(); try { Stream strm = reqFTP.GetRequestStream(); contentLen = fs.Read(buff, 0, buffLength); while (contentLen != 0) { strm.Write(buff, 0, contentLen); contentLen = fs.Read(buff, 0, buffLength); } strm.Close(); fs.Close(); } catch (Exception ex) { throw new Exception(ex.Message); } } /// <summary> /// 下载 /// </summary> public void Download(string filePath, string fileName) { try { FileStream outputStream = new FileStream(filePath + "\\" + fileName, FileMode.Create); FtpWebRequest reqFTP; reqFTP = (FtpWebRequest) FtpWebRequest.Create(new Uri(ftpURI + fileName)); reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); reqFTP.Method = WebRequestMethods.Ftp.DownloadFile; reqFTP.UseBinary = true; FtpWebResponse response = (FtpWebResponse) reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); long cl = response.ContentLength; int bufferSize = 2048; int readCount; byte[] 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 ex) { throw new Exception(ex.Message); } } /// <summary> /// 删除文件 /// </summary> public void Delete(string fileName) { try { FtpWebRequest reqFTP; reqFTP = (FtpWebRequest) FtpWebRequest.Create(new Uri(ftpURI + fileName)); reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); reqFTP.Method = WebRequestMethods.Ftp.DeleteFile; reqFTP.KeepAlive = false; string result = String.Empty; FtpWebResponse response = (FtpWebResponse) reqFTP.GetResponse(); long size = response.ContentLength; Stream datastream = response.GetResponseStream(); StreamReader sr = new StreamReader(datastream); result = sr.ReadToEnd(); sr.Close(); datastream.Close(); response.Close(); } catch (Exception ex) { throw new Exception(ex.Message); } } /// <summary> /// 获取当前目录下明细(包含文件和文件夹) /// </summary> public string[] GetFilesDetailList() { try { StringBuilder result = new StringBuilder(); FtpWebRequest ftp; ftp = (FtpWebRequest) FtpWebRequest.Create(new Uri(ftpURI)); ftp.Credentials = new NetworkCredential(ftpUserID, ftpPassword); ftp.Method = WebRequestMethods.Ftp.ListDirectoryDetails; WebResponse response = ftp.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream()); string line = reader.ReadLine(); line = reader.ReadLine(); line = reader.ReadLine(); while (line != null) { result.Append(line); result.Append("\n"); line = reader.ReadLine(); } result.Remove(result.ToString().LastIndexOf("\n"), 1); reader.Close(); response.Close(); return result.ToString().Split('\n'); } catch (Exception ex) { throw new Exception(ex.Message); } } /// <summary> /// 获取FTP文件列表(包括文件夹) /// </summary> private List<string> GetAllList(string url) { List<string> list = new List<string>(); FtpWebRequest req = (FtpWebRequest) WebRequest.Create(new Uri(url)); req.Credentials = new NetworkCredential(ftpUserID, ftpPassword); req.Method = WebRequestMethods.Ftp.ListDirectory; req.UseBinary = true; req.UsePassive = true; try { using (FtpWebResponse res = (FtpWebResponse) req.GetResponse()) { using (StreamReader sr = new StreamReader(res.GetResponseStream())) { string s; while ((s = sr.ReadLine()) != null) { list.Add(s); } } } } catch (Exception ex) { throw (ex); } return list; } /// <summary> /// 获取当前目录下文件列表(不包括文件夹) /// </summary> public int GetFileList(string url, out List<string> fileList, out List<string> folderList) { fileList = new List<string>(); folderList = new List<string>(); FtpWebRequest reqFTP; int sum=0; try { reqFTP = (FtpWebRequest) FtpWebRequest.Create(new Uri(url)); reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails; WebResponse response = reqFTP.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream()); string line = reader.ReadLine(); while (line != null) { bool isFolder = line.StartsWith("d"); if (!isFolder) { fileList.Add(line.Substring(49, line.Length - 49)); } else { folderList.Add(line.Substring(49, line.Length - 49)); } sum++; line = reader.ReadLine(); } reader.Close(); response.Close(); } catch (Exception ex) { throw (ex); } return sum; } /// <summary> /// 判断当前目录下指定的文件是否存在 /// </summary> /// <param name="RemoteFileName">远程文件名</param> public bool FileExist(string RemoteFileName) { List<string> fileList; List<string> folderList; GetFileList("*.*",out fileList,out folderList); foreach (string str in fileList) { if (str.Trim() == RemoteFileName.Trim()) { return true; } } return false; } /// <summary> /// 创建文件夹 /// </summary> public void MakeDir(string dirName) { FtpWebRequest reqFTP; try { reqFTP = (FtpWebRequest) FtpWebRequest.Create(new Uri(ftpURI + dirName)); reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory; reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); FtpWebResponse response = (FtpWebResponse) reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); ftpStream.Close(); response.Close(); } catch (Exception ex) { } } /// <summary> /// 获取指定文件大小 /// </summary> public long GetFileSize(string filename) { FtpWebRequest reqFTP; long fileSize = 0; try { reqFTP = (FtpWebRequest) FtpWebRequest.Create(new Uri(ftpURI + filename)); reqFTP.Method = WebRequestMethods.Ftp.GetFileSize; reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); FtpWebResponse response = (FtpWebResponse) reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); fileSize = response.ContentLength; ftpStream.Close(); response.Close(); } catch (Exception ex) { } return fileSize; } /// <summary> /// 更改文件名 /// </summary> public void ReName(string currentFilename, string newFilename) { FtpWebRequest reqFTP; try { reqFTP = (FtpWebRequest) FtpWebRequest.Create(new Uri(ftpURI + currentFilename)); reqFTP.Method = WebRequestMethods.Ftp.Rename; reqFTP.RenameTo = newFilename; reqFTP.UseBinary = true; reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); FtpWebResponse response = (FtpWebResponse) reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); ftpStream.Close(); response.Close(); } catch (Exception ex) { } } /// <summary> /// 移动文件 /// </summary> public void MovieFile(string currentFilename, string newDirectory) { ReName(currentFilename, newDirectory); } /// <summary> /// 切换当前目录 /// </summary> /// <param name="IsRoot">true:绝对路径 false:相对路径</param> public void GotoDirectory(string DirectoryName, bool IsRoot) { if (IsRoot) { ftpRemotePath = DirectoryName; } else { ftpRemotePath += "/"+DirectoryName ; } ftpURI = "ftp://" + ftpServerIP +":"+ftpPort+ "/" + ftpRemotePath + "/"; } public void DownloadDir(String remote, string local) { GotoDirectory(remote, true); if (!Directory.Exists(local)) Directory.CreateDirectory(local); List<string> fileList; List<string> folderList; GetFileList(ftpURI, out fileList, out folderList); foreach (var file in fileList) { Console.WriteLine("{0}->{1}", file, local); Download(local, file); } foreach (var folder in folderList) { DownloadDir(remote + "/"+folder, local+@"\"+folder); } } } }
读取xml并连接下载
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Xml.Linq; namespace GetUNet { class Program { static void Main() { XDocument doc = XDocument.Load(@".\ftpconfig.xml"); var q = doc.Element("Config").Elements(); var list = q.ToList(); string ftpIP = string.Empty; string ftpUser = string.Empty; string ftpPwd = string.Empty; string ftpPort = string.Empty; string serverDirectory = string.Empty; string localDirectory = string.Empty; list.ForEach(u => { ftpIP=u.Element("ServerIP").Value; ftpUser = u.Element("FtpUser").Value; ftpPwd = u.Element("FtpPwd").Value; ftpPort = u.Element("Port").Value; localDirectory = u.Element("LocalDir").Value; serverDirectory = u.Element("RemoteDir").Value; }); var ftp = new FTPHelper(ftpIP, ftpPort, ftpUser, ftpPwd); ftp.DownloadDir(serverDirectory,localDirectory); } } }