实现功能
实现使用FTP上传、下载、重命名、刷新、删除功能
开发环境
开发工具： Visual Studio 2013
.NET Framework版本：4.5
实现代码
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/*FTP操作公共类*/
private string FtpIp, FtpPort, FtpUser, FtpPwd, FtpUrl;
private FTPUtil() {
}
public FTPUtil(string ftpIp, string ftpPort, string ftpUser, string ftpPwd) { FtpIp = ftpIp; FtpPort = ftpPort; FtpUser = ftpUser; FtpPwd = ftpPwd;
FtpUrl = "ftp://" + ftpIp + ":" + ftpPort + "/"; }
private FtpWebRequest GetFtpWebRequest(string path, string method) { FtpWebRequest Ftp = (FtpWebRequest)FtpWebRequest.Create(new Uri(FtpUrl + "/" + path)); Ftp.Credentials = new NetworkCredential(FtpUser, FtpPwd); Ftp.KeepAlive = false; Ftp.UsePassive = true; Ftp.Method = method; return Ftp; }
/// <summary> /// 获取路径下所有文件夹 /// </summary> /// <param name="dirName"></param> /// <returns></returns> public List<FileModel> GetDirs(string dirName) { return GetAllFiles(dirName).FindAll(s => s.Type == "文件夹"); }
/// <summary> /// 获取路径下所有文件 /// </summary> /// <param name="dirName"></param> /// <returns></returns> public List<FileModel> GetFiles(string dirName) { return GetAllFiles(dirName).FindAll(s => s.Type == "文件"); }
/// <summary> /// 获取路径下所有项目 /// </summary> /// <param name="dirName"></param> /// <returns></returns> public List<FileModel> GetAllFiles(string dirName) { List<FileModel> fileList = new List<FileModel>(); try { FtpWebRequest Ftp = GetFtpWebRequest(dirName, WebRequestMethods.Ftp.ListDirectoryDetails);
using (WebResponse response = Ftp.GetResponse()) { using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8)) { string line = ""; while ((line = reader.ReadLine()) != null) { fileList.Add(ConvertFile(line, dirName)); } } } } catch (Exception ex) { throw ex; } return fileList; }
/// <summary> /// FTP文件信息转换 /// </summary> /// <param name="value"></param> /// <param name="dirName"></param> /// <returns></returns> private FileModel ConvertFile(string value, string dirName) { string[] arr = value.Split(new string[] { " " },4, StringSplitOptions.RemoveEmptyEntries);
FileModel model = new FileModel(); model.Date = arr[0]; model.Time = arr[1]; if (arr[2] == "<DIR>") { model.Type = "文件夹"; model.Size = 0; } else { model.Type = "文件"; model.Size = Convert.ToInt64(arr[2]); } model.Name = arr[3]; model.FullName = dirName + "/" + model.Name; return model; }
/// <summary> /// 上传 /// </summary> /// <param name="fileName"></param> /// <param name="desFile"></param> public void Upload(string fileName, string desFile) { try { FileInfo fileInfo = new FileInfo(fileName);
FtpWebRequest Ftp = GetFtpWebRequest(desFile, WebRequestMethods.Ftp.UploadFile); Ftp.UseBinary = true; Ftp.ContentLength = fileInfo.Length;
int buffLength = 2048; byte[] buff = new byte[buffLength]; int len = 0; using (FileStream fs = fileInfo.OpenRead()) { using (Stream stream = Ftp.GetRequestStream()) { while ((len = fs.Read(buff, 0, buffLength)) != 0) { stream.Write(buff, 0, buffLength); } } } } catch (Exception ex) { throw ex; }
}
/// <summary> /// 下载 /// </summary> /// <param name="fileName"></param> /// <param name="desFile"></param> public void DownLoad(string fileName, string desFile) { try { FtpWebRequest Ftp = GetFtpWebRequest(fileName, WebRequestMethods.Ftp.DownloadFile); Ftp.UseBinary = true;
FtpWebResponse response = (FtpWebResponse)Ftp.GetResponse(); int buffLength = 2048; byte[] buff = new byte[buffLength]; int len = 0; using (FileStream fs = new FileStream(desFile, FileMode.Create)) { using (Stream stream = response.GetResponseStream()) { while ((len = stream.Read(buff, 0, buffLength)) != 0) { fs.Write(buff, 0, buffLength); } } } } catch (Exception ex) { throw ex; } }
/// <summary> /// 删除文件 /// </summary> /// <param name="fileName"></param> public void DeleteFile(string fileName) { try { FtpWebRequest Ftp = GetFtpWebRequest(fileName, WebRequestMethods.Ftp.DeleteFile);
FtpWebResponse response = (FtpWebResponse)Ftp.GetResponse();
using (Stream datastream = response.GetResponseStream()) { using (StreamReader sr = new StreamReader(datastream)) { sr.ReadToEnd(); } } } catch (Exception ex) { throw ex; } }
/// <summary> /// 重命名 /// </summary> /// <param name="fileName"></param> /// <param name="newName"></param> public void ReName(string fileName, string newName) { try { FtpWebRequest Ftp = GetFtpWebRequest(fileName, WebRequestMethods.Ftp.Rename); Ftp.RenameTo = newName; Ftp.UseBinary = true;
FtpWebResponse response = (FtpWebResponse)Ftp.GetResponse();
using (Stream datastream = response.GetResponseStream()) { using (StreamReader sr = new StreamReader(datastream)) { sr.ReadToEnd(); } } } catch (Exception ex) { throw ex; } } |
实现效果
FTP 操作工具视频演示 https://www.ixigua.com/7041474410389176844
