.net,C#,Ftp各种操作,上传,下载,删除文件,创建目录,删除目录,获得文件列表

using System;using System.Collections.Generic;using System.Text;using System.Net;using System.IO;using System.Windows.Forms; namespace ConvertData{ class FtpUpDown { string ftpServerIP; string ftpUserID; string ftpPassword; FtpWebRequest reqFTP; private void Connect(String path)//连接ftp { // 根据uri创建FtpWebRequest对象 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(path)); // 指定数据传输类型 reqFTP.UseBinary = true; // ftp用户名和密码 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); } public FtpUpDown(string ftpServerIP, string ftpUserID, string ftpPassword) { this.ftpServerIP = ftpServerIP; this.ftpUserID = ftpUserID; this.ftpPassword = ftpPassword; } //都调用这个 private string[] GetFileList(string path, string WRMethods)//上面的代码示例了如何从ftp服务器上获得文件列表 { string[] downloadFiles; StringBuilder result = new StringBuilder(); try { Connect(path); reqFTP.Method = WRMethods; WebResponse response = reqFTP.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);//中文文件名 string line = reader.ReadLine(); while (line != null) { result.Append(line); result.Append(" "); line = reader.ReadLine(); } // to remove the trailing '' '' result.Remove(result.ToString().LastIndexOf('' ''), 1); reader.Close(); response.Close(); return result.ToString().Split('' ''); } catch (Exception ex) { System.Windows.Forms.MessageBox.Show(ex.Message); downloadFiles = null; return downloadFiles; } } public string[] GetFileList(string path)//上面的代码示例了如何从ftp服务器上获得文件列表 { return GetFileList("ftp://" + ftpServerIP + "/" + path, WebRequestMethods.Ftp.ListDirectory); } public string[] GetFileList()//上面的代码示例了如何从ftp服务器上获得文件列表{ return GetFileList("ftp://" + ftpServerIP + "/", WebRequestMethods.Ftp.ListDirectory); } public void Upload(string filename) //上面的代码实现了从ftp服务器上载文件的功能 { FileInfo fileInf = new FileInfo(filename); string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name; Connect(uri);//连接 // 默认为true，连接不会被关闭 // 在一个命令之后被执行 reqFTP.KeepAlive = false; // 指定执行什么命令 reqFTP.Method = WebRequestMethods.Ftp.UploadFile; // 上传文件时通知服务器文件的大小 reqFTP.ContentLength = fileInf.Length; // 缓冲大小设置为kb int buffLength = 2048; byte[] buff = new byte[buffLength]; int contentLen; // 打开一个文件流(System.IO.FileStream) 去读上传的文件 FileStream fs = fileInf.OpenRead(); try { // 把上传的文件写入流 Stream strm = reqFTP.GetRequestStream(); // 每次读文件流的kb contentLen = fs.Read(buff, 0, buffLength); // 流内容没有结束 while (contentLen != 0) { // 把内容从file stream 写入upload stream strm.Write(buff, 0, contentLen); contentLen = fs.Read(buff, 0, buffLength); } // 关闭两个流 strm.Close(); fs.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message, "Upload Error"); } } public bool Download(string filePath, string fileName, out string errorinfo)/**/////上面的代码实现了从ftp服务器下载文件的功能 { try { String onlyFileName = Path.GetFileName(fileName); string newFileName = filePath + "\" + onlyFileName; if (File.Exists(newFileName)) { errorinfo = string.Format("本地文件{0}已存在,无法下载", newFileName); return false;} string url = "ftp://" + ftpServerIP + "/" + fileName; Connect(url);//连接 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword); 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); FileStream outputStream = new FileStream(newFileName, FileMode.Create); while (readCount > 0) { outputStream.Write(buffer, 0, readCount); readCount = ftpStream.Read(buffer, 0, bufferSize); } ftpStream.Close(); outputStream.Close(); response.Close(); errorinfo = ""; return true; } catch (Exception ex) { errorinfo = string.Format("因{0},无法下载", ex.Message); return false; } } //删除文件 public void DeleteFileName(string fileName) { try { FileInfo fileInf = new FileInfo(fileName); string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name; Connect(uri);//连接 // 默认为true，连接不会被关闭 // 在一个命令之后被执行 reqFTP.KeepAlive = false; // 指定执行什么命令 reqFTP.Method = WebRequestMethods.Ftp.DeleteFile; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); response.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message, "删除错误"); }} //创建目录 public void MakeDir(string dirName) { try { string uri = "ftp://" + ftpServerIP + "/" + dirName; Connect(uri);//连接 reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); response.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } } //删除目录 public void delDir(string dirName) { try { string uri = "ftp://" + ftpServerIP + "/" + dirName; Connect(uri);//连接 reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); response.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } } //获得文件大小 public long GetFileSize(string filename) { long fileSize = 0; try { FileInfo fileInf = new FileInfo(filename); string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name; Connect(uri);//连接 reqFTP.Method = WebRequestMethods.Ftp.GetFileSize; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); fileSize = response.ContentLength; response.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } return fileSize; } //文件改名 public void Rename(string currentFilename, string newFilename) { try { FileInfo fileInf = new FileInfo(currentFilename); string uri = "ftp://" +ftpServerIP + "/" + fileInf.Name; Connect(uri);//连接 reqFTP.Method = WebRequestMethods.Ftp.Rename; reqFTP.RenameTo = newFilename; FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse(); //Stream ftpStream = response.GetResponseStream(); //ftpStream.Close(); response.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } } //获得文件明晰 public string[] GetFilesDetailList() { return GetFileList("ftp://" + ftpServerIP + "/", WebRequestMethods.Ftp.ListDirectoryDetails); } //获得文件明晰 public string[] GetFilesDetailList(string path) { return GetFileList("ftp://" + ftpServerIP + "/" + path, WebRequestMethods.Ftp.ListDirectoryDetails); } } } -----------------------测试 //获得文件列表 private void button1_Click(object sender, EventArgs e) { FtpUpDown ftpUpDown = new FtpUpDown(ConvertData.Properties.Settings.Default.ftpServerIP, ConvertData.Properties.Settings.Default.ftpUserID, ConvertData.Properties.Settings.Default.ftpPassword); string[] str = ftpUpDown.GetFileList("2005"); richTextBox1.Lines = str; } //下载 private void button2_Click(object sender, EventArgs e) { FtpUpDown ftpUpDown = new FtpUpDown(ConvertData.Properties.Settings.Default.ftpServerIP, ConvertData.Properties.Settings.Default.ftpUserID, ConvertData.Properties.Settings.Default.ftpPassword); ftpUpDown.Download("c:\", "2007/11/01/57070.pdf"); } //上传 private void button3_Click(object sender, EventArgs e) { FtpUpDown ftpUpDown = new FtpUpDown(ConvertData.Properties.Settings.Default.ftpServerIP, ConvertData.Properties.Settings.Default.ftpUserID, ConvertData.Properties.Settings.Default.ftpPassword); ftpUpDown.Upload("c:\57070.pdf"); }