C# FTP上傳檔案至伺服器程式碼
阿新 • • 發佈：2019-01-08
/// <summary> /// 上傳檔案 /// </summary> /// <param name="fileinfo">需要上傳的檔案</param> /// <param name="targetDir">目標路徑</param> /// <param name="hostname">ftp地址</param> /// <param name="username">ftp使用者名稱</param> /// <param name="password">ftp密碼</param> public static void UploadFile(FileInfo fileinfo, string targetDir, string hostname, string username, string password) { //1. check target string target; if (targetDir.Trim() == "") { return; } target = Guid.NewGuid().ToString(); //使用臨時檔名 string URI = "FTP://" + hostname + "/" + targetDir + "/" + target; ///WebClient webcl = new WebClient(); System.Net.FtpWebRequest ftp = GetRequest(URI, username, password); //設定FTP命令 設定所要執行的FTP命令， //ftp.Method = System.Net.WebRequestMethods.Ftp.ListDirectoryDetails;//假設此處為顯示指定路徑下的檔案列表 ftp.Method = System.Net.WebRequestMethods.Ftp.UploadFile; //指定檔案傳輸的資料型別 ftp.UseBinary = true; ftp.UsePassive = true; //告訴ftp檔案大小 ftp.ContentLength = fileinfo.Length; //緩衝大小設定為2KB const int BufferSize = 2048; byte[] content = new byte[BufferSize - 1 + 1]; int dataRead; //開啟一個檔案流 (System.IO.FileStream) 去讀上傳的檔案 using (FileStream fs = fileinfo.OpenRead()) { try { //把上傳的檔案寫入流 using (Stream rs = ftp.GetRequestStream()) { do { //每次讀檔案流的2KB dataRead = fs.Read(content, 0, BufferSize); rs.Write(content, 0, dataRead); } while (!(dataRead < BufferSize)); rs.Close(); } } catch (Exception ex) { } finally { fs.Close(); } } ftp = null; //設定FTP命令 ftp = GetRequest(URI, username, password); ftp.Method = System.Net.WebRequestMethods.Ftp.Rename; //改名 ftp.RenameTo = fileinfo.Name; try { ftp.GetResponse(); } catch (Exception ex) { ftp = GetRequest(URI, username, password); ftp.Method = System.Net.WebRequestMethods.Ftp.DeleteFile; //刪除 ftp.GetResponse(); throw ex; } finally { //fileinfo.Delete(); } // 可以記錄一個日誌 "上傳" + fileinfo.FullName + "上傳到" + "FTP://" + hostname + "/" + targetDir + "/" + fileinfo.Name + "成功." ); ftp = null; #region /***** *FtpWebResponse * ****/ //FtpWebResponse ftpWebResponse = (FtpWebResponse)ftp.GetResponse(); #endregion }
/// <summary> /// 下載檔案 /// </summary> /// <param name="localDir">下載至本地路徑</param> /// <param name="FtpDir">ftp目標檔案路徑</param> /// <param name="FtpFile">從ftp要下載的檔名</param> /// <param name="hostname">ftp地址即IP</param> /// <param name="username">ftp使用者名稱</param> /// <param name="password">ftp密碼</param> public static void DownloadFile(string localDir, string FtpDir, string FtpFile, string hostname, string username, string password) { string URI = "FTP://" + hostname + "/" + FtpDir + "/" + FtpFile; string tmpname = Guid.NewGuid().ToString(); string localfile = localDir + @"\" + tmpname; System.Net.FtpWebRequest ftp = GetRequest(URI, username, password); ftp.Method = System.Net.WebRequestMethods.Ftp.DownloadFile; ftp.UseBinary = true; ftp.UsePassive = false; using (FtpWebResponse response = (FtpWebResponse)ftp.GetResponse()) { using (Stream responseStream = response.GetResponseStream()) { //loop to read & write to file using (FileStream fs = new FileStream(localfile, FileMode.CreateNew)) { try { byte[] buffer = new byte[2048]; int read = 0; do { read = responseStream.Read(buffer, 0, buffer.Length); fs.Write(buffer, 0, read); } while (!(read == 0)); responseStream.Close(); fs.Flush(); fs.Close(); } catch (Exception) { //catch error and delete file only partially downloaded fs.Close(); //delete target file as it's incomplete File.Delete(localfile); throw; } } responseStream.Close(); } response.Close(); } try { File.Delete(localDir + @"\" + FtpFile); File.Move(localfile, localDir + @"\" + FtpFile); ftp = null; ftp = GetRequest(URI, username, password); ftp.Method = System.Net.WebRequestMethods.Ftp.DeleteFile; ftp.GetResponse(); } catch (Exception ex) { File.Delete(localfile); throw ex; } // 記錄日誌 "從" + URI.ToString() + "下載到" + localDir + @"\" + FtpFile + "成功." ); ftp = null; } /// <summary> /// 搜尋遠端檔案 /// </summary> /// <param name="targetDir"></param> /// <param name="hostname"></param> /// <param name="username"></param> /// <param name="password"></param> /// <param name="SearchPattern"></param> /// <returns></returns> public static List<string> ListDirectory(string targetDir, string hostname, string username, string password, string SearchPattern) { List<string> result = new List<string>(); try { string URI = "FTP://" + hostname + "/" + targetDir + "/" + SearchPattern; System.Net.FtpWebRequest ftp = GetRequest(URI, username, password); ftp.Method = System.Net.WebRequestMethods.Ftp.ListDirectory; ftp.UsePassive = true; ftp.UseBinary = true; string str = GetStringResponse(ftp); str = str.Replace("\r\n", "\r").TrimEnd('\r'); str = str.Replace("\n", "\r"); if (str != string.Empty) result.AddRange(str.Split('\r')); return result; } catch { } return null; } private static string GetStringResponse(FtpWebRequest ftp) { //Get the result, streaming to a string string result = ""; using (FtpWebResponse response = (FtpWebResponse)ftp.GetResponse()) { long size = response.ContentLength; using (Stream datastream = response.GetResponseStream()) { using (StreamReader sr = new StreamReader(datastream, System.Text.Encoding.Default)) { result = sr.ReadToEnd(); sr.Close(); } datastream.Close(); } response.Close(); } return result; }
/// 在ftp伺服器上建立目錄 /// </summary> /// <param name="dirName">建立的目錄名稱</param> /// <param name="ftpHostIP">ftp地址</param> /// <param name="username">使用者名稱</param> /// <param name="password">密碼</param> public void MakeDir(string dirName,string ftpHostIP,string username,string password) { try { string uri = "ftp://" + ftpHostIP + "/" + dirName; System.Net.FtpWebRequest ftp = GetRequest(uri, username, password); ftp.Method = WebRequestMethods.Ftp.MakeDirectory; FtpWebResponse response = (FtpWebResponse)ftp.GetResponse(); response.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }
/// <summary>
/// 刪除目錄
/// </summary>
/// <param name="dirName">建立的目錄名稱</param>
/// <param name="ftpHostIP">ftp地址</param>
/// <param name="username">使用者名稱</param>
/// <param name="password">密碼</param>
public void delDir(string dirName, string ftpHostIP, string username, string password)
{
try
{
string uri = "ftp://" + ftpHostIP + "/" + dirName;
System.Net.FtpWebRequest ftp = GetRequest(uri, username, password);
ftp.Method = WebRequestMethods.Ftp.RemoveDirectory;
FtpWebResponse response = (FtpWebResponse)ftp.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}/// <summary>
/// 檔案重新命名
/// </summary>
/// <param name="currentFilename">當前目錄名稱</param>
/// <param name="newFilename">重新命名目錄名稱</param>
/// <param name="ftpServerIP">ftp地址</param>
/// <param name="username">使用者名稱</param>
/// <param name="password">密碼</param>
public void Rename(string currentFilename, string newFilename, string ftpServerIP, string username, string password)
{
try
{
FileInfo fileInf = new FileInfo(currentFilename);
string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name;
System.Net.FtpWebRequest ftp = GetRequest(uri, username, password);
ftp.Method = WebRequestMethods.Ftp.Rename;
ftp.RenameTo = newFilename;
FtpWebResponse response = (FtpWebResponse)ftp.GetResponse();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}private static FtpWebRequest GetRequest(string URI, string username, string password)
{
//根據伺服器資訊FtpWebRequest建立類的物件
FtpWebRequest result = (FtpWebRequest)FtpWebRequest.Create(URI);
//提供身份驗證資訊
result.Credentials = new System.Net.NetworkCredential(username, password);
//設定請求完成之後是否保持到FTP伺服器的控制連線，預設值為true
result.KeepAlive = false;
return result;
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Net;/// <summary>
/// 向Ftp伺服器上傳檔案並建立和本地相同的目錄結構
/// 遍歷目錄和子目錄的檔案
/// </summary>
/// <param name="file"></param>
private void GetFileSystemInfos(FileSystemInfo file)
{
string getDirecName=file.Name;
if (!ftpIsExistsFile(getDirecName, "192.168.0.172", "Anonymous", "") && file.Name.Equals(FileName))
{
MakeDir(getDirecName, "192.168.0.172", "Anonymous", "");
}
if (!file.Exists) return;
DirectoryInfo dire = file as DirectoryInfo;
if (dire == null) return;
FileSystemInfo[] files = dire.GetFileSystemInfos();
for (int i = 0; i < files.Length; i++)
{
FileInfo fi = files[i] as FileInfo;
if (fi != null)
{
DirectoryInfo DirecObj=fi.Directory;
string DireObjName = DirecObj.Name;
if (FileName.Equals(DireObjName))
{
UploadFile(fi, DireObjName, "192.168.0.172", "Anonymous", "");
}
else
{
Match m = Regex.Match(files[i].FullName, FileName + "+.*" + DireObjName);
//UploadFile(fi, FileName+"/"+DireObjName, "192.168.0.172", "Anonymous", "");
UploadFile(fi, m.ToString(), "192.168.0.172", "Anonymous", "");
}
}
else
{
string[] ArrayStr = files[i].FullName.Split('\\');
string finame=files[i].Name;
Match m=Regex.Match(files[i].FullName,FileName+"+.*"+finame);
//MakeDir(ArrayStr[ArrayStr.Length - 2].ToString() + "/" + finame, "192.168.0.172", "Anonymous", "");
MakeDir(m.ToString(), "192.168.0.172", "Anonymous", "");
GetFileSystemInfos(files[i]);
}
}
}/// <summary>
/// 判斷ftp伺服器上該目錄是否存在
/// </summary>
/// <param name="dirName"></param>
/// <param name="ftpHostIP"></param>
/// <param name="username"></param>
/// <param name="password"></param>
/// <returns></returns>
private bool ftpIsExistsFile(string dirName, string ftpHostIP, string username, string password)
{
bool flag = true;
try
{
string uri = "ftp://" + ftpHostIP + "/" + dirName;
System.Net.FtpWebRequest ftp = GetRequest(uri, username, password);
ftp.Method = WebRequestMethods.Ftp.ListDirectory;
FtpWebResponse response = (FtpWebResponse)ftp.GetResponse();
response.Close();
}
catch (Exception )
{
flag = false;
}
return flag;
}轉載地址：http://www.cnblogs.com/wuhuisheng/archive/2012/08/14/2638020.html