using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Net;
using System.Windows.Forms;
//using ESRI.ArcGIS.esriSystem;
using System.Text.RegularExpressions;
using DigitalMine.ImageManagement;
namespace Subsidence_Forecast_System.ImageManagement
{
public class ftp
{
/// <summary>
/// 上传文件
/// </summary>
/// <param name="fileinfo">需要上传的文件</param>
/// <param name="targetDir">目标路径</param>
/// <param name="hostname">ftp地址</param>
/// <param name="username">ftp用户名</param>
/// <param name="password">ftp密码</param>
public 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(); //使用临时文件名
string URI = "FTP://" + hostname + "/" + targetDir + "/" + target;
///WebClient webcl = new WebClient();
System.Net.FtpWebRequest ftp = GetRequest(URI, username, password);
//设置FTP命令 设置所要执行的FTP命令,
//ftp.Method = System.Net.WebRequestMethods.Ftp.ListDirectoryDetails;//假设此处为显示指定路径下的文件列表
ftp.Method = System.Net.WebRequestMethods.Ftp.UploadFile;
//指定文件传输的数据类型
ftp.UseBinary = true;
ftp.UsePassive = true;
//告诉ftp文件大小
ftp.ContentLength = fileinfo.Length;
//缓冲大小设置为2KB
const int BufferSize = 2048;
byte[] content = new byte[BufferSize - 1 + 1];
int dataRead;
//打开一个文件流 (System.IO.FileStream) 去读上传的文件
using (FileStream fs = fileinfo.OpenRead())
{
//try
//{
//把上传的文件写入流
using (Stream rs = ftp.GetRequestStream())
{
do
{
//每次读文件流的2KB
dataRead = fs.Read(content, 0, BufferSize);
rs.Write(content, 0, dataRead);
} while (!(dataRead < BufferSize));
rs.Close();
}
//}
//catch (Exception ex) { }
//finally
//{
// fs.Close();
//}
fs.Close();
}
ftp = null;
//设置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; //删除
ftp.GetResponse();
throw ex;
}
finally
{
//fileinfo.Delete();
}
// 可以记录一个日志 "上传" + fileinfo.FullName + "上传到" + "FTP://" + hostname + "/" + targetDir + "/" + fileinfo.Name + "成功." );
ftp = null;
#region
/*****
*FtpWebResponse
* ****/
//FtpWebResponse ftpWebResponse = (FtpWebResponse)ftp.GetResponse();
#endregion
}
//public void UploadFile(FileInfo fileinfo, string targetDir, string hostname, string username, string password)
//{
// FTPClient ftpC = new FTPClient();
// ftpC.RemoteHost = hostname;
// ftpC.RemotePass = password;
// ftpC.RemotePort = 21;
// ftpC.RemoteUser = username;
// ftpC.Connect();
// ftpC.Put(fileinfo.FullName);
//}
/// <summary>
/// 下载文件
/// </summary>
/// <param name="localDir">下载至本地路径</param>
/// <param name="FtpDir">ftp目标文件路径</param>
/// <param name="FtpFile">从ftp要下载的文件名</param>
/// <param name="hostname">ftp地址即IP</param>
/// <param name="username">ftp用户名</param>
/// <param name="password">ftp密码</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;
}
// 记录日志 "从" + URI.ToString() + "下载到" + localDir + @"\" + FtpFile + "成功." );
ftp = null;
}
/// <summary>
/// 搜索远程文件
/// </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服务器上创建目录
/// </summary>
/// <param name="dirName">创建的目录名称</param>
/// <param name="ftpHostIP">ftp地址</param>
/// <param name="username">用户名</param>
/// <param name="password">密码</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>
/// 删除目录
/// </summary>
/// <param name="dirName">创建的目录名称</param>
/// <param name="ftpHostIP">ftp地址</param>
/// <param name="username">用户名</param>
/// <param name="password">密码</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>
/// 文件重命名
/// </summary>
/// <param name="currentFilename">当前目录名称</param>
/// <param name="newFilename">重命名目录名称</param>
/// <param name="ftpServerIP">ftp地址</param>
/// <param name="username">用户名</param>
/// <param name="password">密码</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)
{
//根据服务器信息FtpWebRequest创建类的对象
FtpWebRequest result = (FtpWebRequest)FtpWebRequest.Create(URI);
//提供身份验证信息
result.Credentials = new System.Net.NetworkCredential(username, password);
//设置请求完成之后是否保持到FTP服务器的控制连接,默认值为true
result.KeepAlive = false;
return result;
}
///// <summary>
///// 向Ftp服务器上传文件并创建和本地相同的目录结构
///// 遍历目录和子目录的文件
///// </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>
/// 判断ftp服务器上该目录是否存在
/// </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;
}
}
}
C#中FTP上传下载
最新推荐文章于 2025-05-26 16:03:17 发布