C#之ftp- 該實例所需要的引用:
一:引用
using System; using System.Collections.Generic; using System.Text; using System.IO; using System.Net; using System.Text.RegularExpressions;
二:命名空間及字段
namespace DotNet.Utilities { public class FTPHelper { #region 字段 string ftpURI; string ftpUserID; string ftpServerIP; string ftpPassword; string ftpRemotePath; #endregion /// <summary> /// 連接FTP服務器 /// </summary> /// <param name="FtpServerIP">FTP連接地址</param> /// <param name="FtpRemotePath">指定FTP連接成功後的當前目錄, 如果不指定即默認為根目錄</param> /// <param name="FtpUserID">用戶名</param> /// <param name="FtpPassword">密碼</param> public FTPHelper(string FtpServerIP, string FtpRemotePath, string FtpUserID, string FtpPassword) { ftpServerIP = FtpServerIP; ftpRemotePath = FtpRemotePath; ftpUserID = FtpUserID; ftpPassword = FtpPassword; ftpURI = "ftp://" + ftpServerIP + "/" + ftpRemotePath + "/"; }
三:ftp上傳文件實例代碼,只需要傳遞相對應的文件名,調用該方法即可
/// <summary> /// 上傳 /// </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); } }
四:ftp下載之實例代碼,只需要傳遞相對應的文件路徑,文件名,調用該方法即可完成
/// <summary> /// 下載 /// </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); } }
五:ftp刪除文件之實例代碼,有上傳和下載,必然就會有刪除,依舊簡單,傳入文件名即可完成刪除
/// <summary> /// 刪除文件 /// </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); } }
六:ftp獲取列表之實例代碼,獲取當前目錄下明細(包含文件和文件夾) ,這個可能用的不多,但也是需要了解的
/// <summary> /// 獲取當前目錄下明細(包含文件和文件夾) /// </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); } }
七:ftp之實例代碼,獲取FTP文件列表(包括文件夾)
/// <summary> /// 獲取FTP文件列表(包括文件夾) /// </summary> private string[] GetAllList(string url) { List<string> list = new List<string>(); FtpWebRequest req = (FtpWebRequest)WebRequest.Create(new Uri(url)); req.Credentials = new NetworkCredential(ftpPassword, 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.ToArray(); }
八:ftp創建文件夾之實例代碼,如何創建文件夾
/// <summary> /// 創建文件夾 /// </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) { } }
九:ftp之指定文件大小 ,依舊只需要提供文件名即可
/// <summary> /// 獲取指定文件大小 /// </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; }
十:ftp之更改文件名,傳遞當前文件名和新文件名即可
/// <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) { } }
十一:ftp之移動文件,這個用的不是很多,但是有時候也是經常用到的,當前路徑,新路徑即可,這裡要用絕對路徑哦
/// <summary> /// 移動文件 /// </summary> public void MovieFile(string currentFilename, string newDirectory) { ReName(currentFilename, newDirectory); } } }
哈哈,總結了這麼多,希望給需要的人一些幫助,當然還有一些其他的方法我就不一一列出來了,多行多努力!與大家共勉