接着上一篇說。
上一篇說了根據配置文件獲取路徑,並判斷路徑在服務器中是否存在。如果不存在則在服務器中建立一個。
然后就是往路徑下面傳輸文件了。、
代碼:
//連接ftp private void Connect(String path) { // 根據uri創建FtpWebRequest對象 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(path)); // 指定數據傳輸類型 reqFTP.Method = System.Net.WebRequestMethods.Ftp.UploadFile; reqFTP.UseBinary = true; reqFTP.UsePassive = false; // ftp用戶名和密碼 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); }
public void Upload(string filename) //上面的代碼實現了從ftp服務器上載文件的功能 { FileInfo fileInf = new FileInfo(filename); string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name; Connect(uri);//連接 // 默認為true,連接不會被關閉 // 在一個命令之后被執行 reqFTP.KeepAlive = false; // 指定執行什么命令 reqFTP.Method = WebRequestMethods.Ftp.UploadFile; // 上傳文件時通知服務器文件的大小 reqFTP.ContentLength = fileInf.Length; // 緩沖大小設置為kb int buffLength = 2048; byte[] buff = new byte[buffLength]; int contentLen; // 打開一個文件流(System.IO.FileStream) 去讀上傳的文件 FileStream fs = fileInf.OpenRead(); try { int allbye = (int)fileInf.Length; int startbye = 0;// 把上傳的文件寫入流 Stream strm = reqFTP.GetRequestStream();//根據服務器的FTP配置不同,要使用不同的模式,否則會報錯 // 每次讀文件流的kb contentLen = fs.Read(buff, 0, buffLength);// 流內容沒有結束 while (contentLen != 0) { // 把內容從file stream 寫入upload stream strm.Write(buff, 0, contentLen); contentLen = fs.Read(buff, 0, buffLength); startbye += buffLength; }// 關閉兩個流 strm.Close(); fs.Close(); } catch (Exception ex) { this.WriteLog("上傳失敗,原因: " + ex.Message); fs.Close(); } }
/// <summary> /// 下載文件 /// </summary> /// <param name="fileName"></param> /// <returns></returns> public Byte[] Download(string fileName)/**/////上面的代碼實現了從ftp服務器下載文件的功能 { Byte[] rtn = null; try { long allbye = (long)GetFileSize(fileName); string url = "ftp://" + ftpServerIP + "/" + fileName; Connect(url);//連接 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); reqFTP.KeepAlive = false; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); long cl = response.ContentLength; int bufferSize = 2048; int readCount = 0; byte[] buffer = new byte[bufferSize]; readCount = ftpStream.Read(buffer, 0, bufferSize); MemoryStream mstream = new MemoryStream(); int startbye = 0; while (readCount > 0) { mstream.Write(buffer, 0, readCount); readCount = ftpStream.Read(buffer, 0, bufferSize); startbye += readCount; } rtn = mstream.ToArray(); ftpStream.Close(); response.Close(); mstream.Close(); return rtn; } catch (Exception ex) { //errorinfo = string.Format("因{0},無法下載", ex.Message); throw new Exception("下載失敗,原因: " + ex.Message); } }