目錄
判斷FTP連接
FTP文件上傳
FTP文件下載
刪除指定FTP文件
刪除指定FTP文件夾
獲取FTP上文件夾/文件列表
創建文件夾
獲取指定FTP文件大小
更改指定FTP文件名稱
移動指定FTP文件
應用示例
判斷FTP連接
public bool CheckFtp() { try { FtpWebRequest ftprequest = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI)); // ftp用戶名和密碼 ftprequest.Credentials = new NetworkCredential(ftpUserID, ftpPassword); ftprequest.Method = WebRequestMethods.Ftp.ListDirectory; ftprequest.Timeout = 3000; FtpWebResponse ftpResponse = (FtpWebResponse)ftprequest.GetResponse(); ftpResponse.Close(); return true; } catch (Exception ex) { return false; } }
FTP文件上傳
參數localfile爲要上傳的本地文件,ftpfile爲上傳到FTP的文件名稱,ProgressBar爲顯示上傳進度的滾動條,適用於WinForm。若應用於控制檯程序,只要重寫該函數,將參數ProgressBar去掉即可,同時將函數實現裏所有涉及ProgressBar的地方都刪掉。
public void Upload(string localfile, string ftpfile, System.Windows.Forms.ProgressBar pb) { FileInfo fileInf = new FileInfo(localfile); FtpWebRequest reqFTP; reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + ftpfile)); reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); reqFTP.Method = WebRequestMethods.Ftp.UploadFile; reqFTP.KeepAlive = false; reqFTP.UseBinary = true; reqFTP.ContentLength = fileInf.Length; if (pb != null) { pb.Maximum = Convert.ToInt32(reqFTP.ContentLength / 2048); pb.Maximum = pb.Maximum + 1; pb.Minimum = 0; pb.Value = 0; } 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); if (pb != null) { if (pb.Value != pb.Maximum) pb.Value = pb.Value + 1; } contentLen = fs.Read(buff, 0, buffLength); System.Windows.Forms.Application.DoEvents(); } if (pb != null) pb.Value = pb.Maximum; System.Windows.Forms.Application.DoEvents(); strm.Close(); fs.Close(); } catch (Exception ex) { throw new Exception(ex.Message); } }
FTP文件下載
參數localfilename爲將下載到本地的文件名稱,ftpfilename爲要下載的FTP上文件名稱,ProcessBar爲用於顯示下載進度的進度條。該函數用於WinForm,若用於控制檯,只要重寫該函數,刪除所有涉及ProcessBar的代碼即可。
public void Download(string localfilename, string ftpfileName, System.Windows.Forms.ProgressBar pb) { long fileSize = GetFileSize(ftpfileName); if (fileSize > 0) { if (pb != null) { pb.Maximum = Convert.ToInt32(fileSize / 2048); pb.Maximum = pb.Maximum + 1; pb.Minimum = 0; pb.Value = 0; } try { FileStream outputStream = new FileStream(localfilename, FileMode.Create); FtpWebRequest reqFTP; reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + ftpfileName)); reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); reqFTP.Method = WebRequestMethods.Ftp.DownloadFile; reqFTP.UseBinary = true; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); int bufferSize = 2048; int readCount; byte[] buffer = new byte[bufferSize]; readCount = ftpStream.Read(buffer, 0, bufferSize); while (readCount > 0) { outputStream.Write(buffer, 0, readCount); if (pb != null) { if (pb.Value != pb.Maximum) pb.Value = pb.Value + 1; } readCount = ftpStream.Read(buffer, 0, bufferSize); System.Windows.Forms.Application.DoEvents(); } if (pb != null) pb.Value = pb.Maximum; System.Windows.Forms.Application.DoEvents(); ftpStream.Close(); outputStream.Close(); response.Close(); } catch (Exception ex) { File.Delete(localfilename); throw new Exception(ex.Message); } } }
刪除指定FTP文件
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); } }
刪除指定FTP文件夾
public void RemoveDirectory(string urlpath) { try { string uri = ftpURI + urlpath; FtpWebRequest reqFTP; reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri)); reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); reqFTP.KeepAlive = false; reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory; 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); } }
獲取FTP上文件夾/文件列表
ListType=1代表獲取文件列表,ListType=2代表獲取文件夾列表,ListType=3代表獲取文件和文件夾列表。
Detail=true時獲文件或文件夾詳細信息,Detail=false時只獲取文件或文件夾名稱。
Keyword是隻需list名稱包含Keyword的文件或文件夾,若要list所有文件或文件夾,則該參數爲空。若ListType=3,則該參數無效。
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版權聲明:本文爲CSDN博主「只會搬運的小菜鳥」的原創文章,遵循CC 4.0 BY-SA版權協議,轉載請附上原文出處鏈接及本聲明。
原文鏈接:https://blog.csdn.net/u011465910/article/details/126563124
public List<string> GetFileDirctoryList(int ListType, bool Detail, string Keyword) { List<string> strs = new List<string>(); try { FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI)); // ftp用戶名和密碼 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); if (Detail) reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails; else reqFTP.Method = WebRequestMethods.Ftp.ListDirectory; WebResponse response = reqFTP.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream());//中文文件名 string line = reader.ReadLine(); while (line != null) { if (ListType == 1) { if (line.Contains(".")) { if (Keyword.Trim() == "*.*" || Keyword.Trim() == "") { strs.Add(line); } else if (line.IndexOf(Keyword.Trim()) > -1) { strs.Add(line); } } } else if (ListType == 2) { if (!line.Contains(".")) { if (Keyword.Trim() == "*" || Keyword.Trim() == "") { strs.Add(line); } else if (line.IndexOf(Keyword.Trim()) > -1) { strs.Add(line); } } } else if (ListType == 3) { strs.Add(line); } line = reader.ReadLine(); } reader.Close(); response.Close(); return strs; } catch (Exception ex) { throw new Exception(ex.Message); } }
創建文件夾
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) { throw new Exception(ex.Message); } }
獲取指定FTP文件大小
public long GetFileSize(string ftpfileName) { long fileSize = 0; try { FtpWebRequest reqFTP; reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + ftpfileName)); reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); reqFTP.Method = WebRequestMethods.Ftp.GetFileSize; reqFTP.UseBinary = true; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); Stream ftpStream = response.GetResponseStream(); fileSize = response.ContentLength; ftpStream.Close(); response.Close(); } catch (Exception ex) { throw new Exception(ex.Message); } return fileSize; }
更改指定FTP文件名稱
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)
{
throw new Exception(ex.Message);
}
}
移動指定FTP文件
移動FTP文件其實就是重命名文件,只要將目標文件指定一個新的FTP地址就可以了。我沒用過,不知道是否可行,因爲C++是這麼操作的。
public void MovieFile(string currentFilename, string newDirectory)
{
ReName(currentFilename, newDirectory);
}
應用示例
將上面的內容打包到下面這個FTP類中,就可以在你的業務代碼中調用了。
using System;
using System.IO;
using System.Net;
using System.Collections.Generic;
namespace TECSharpFunction
{
/// <summary>
/// FTP操作
/// </summary>
public class FTPHelper
{
#region FTPConfig
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, 如果不指定即默認爲根目錄</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 + "/";
}
//把上面介紹的那些方法都放到下面
}
}
舉個例子:
using System;
using System.IO;
using System.Net;
using System.Collections.Generic;
uusing TECSharpFunction;
namespace FTPTest
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
Public void FTP_Test()
{
FTPHelper ftpClient = new FTPHelper("192.168.1.1",@"/test","Test","Test");
ftpClient.Download("test.txt", "test1.txt", progressBar1);
}
}
}
好了,就這樣吧!
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版權聲明:本文爲CSDN博主「只會搬運的小菜鳥」的原創文章,遵循CC 4.0 BY-SA版權協議,轉載請附上原文出處鏈接及本聲明。
原文鏈接:https://blog.csdn.net/u011465910/article/details/126563124