public class FtpHelper
{
//基本设置
private static string ftppath = @"ftp://" + "192.168.1.1" + "/";
private static string username = "username";
private static string password = "password";
//获取FTP上面的文件夹和文件
public static string[] GetFolderAndFileList(string s)
{
string[] getfolderandfilelist;
FtpWebRequest request;
StringBuilder sb = new StringBuilder();
try
{
request = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftppath));
request.UseBinary = true;
request.Credentials = new NetworkCredential(username, password);
request.Method = WebRequestMethods.Ftp.ListDirectory;
request.UseBinary = true;
WebResponse response = request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
while (line != null)
{
sb.Append(line);
sb.Append("\n");
Console.WriteLine(line);
line = reader.ReadLine();
}
sb.Remove(sb.ToString().LastIndexOf('\n'), 1);
reader.Close();
response.Close();
return sb.ToString().Split('\n');
}
catch (Exception ex)
{
Console.WriteLine("获取FTP上面的文件夹和文件：" + ex.Message);
getfolderandfilelist = null;
return getfolderandfilelist;
}
}
//获取FTP上面的文件大小
public static int GetFileSize(string fileName)
{
FtpWebRequest request;
try
{
request = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftppath + fileName));
request.UseBinary = true;
request.Credentials = new NetworkCredential(username, password);
request.Method = WebRequestMethods.Ftp.GetFileSize;
int n = (int)request.GetResponse().ContentLength;
return n;
}
catch (Exception ex)
{
Console.WriteLine("获取FTP上面的文件大小：" + ex.Message);
return -1;
}
}
//FTP上传文件
public static void FileUpLoad(string filePath, string objPath = "")
{
try
{
string url = ftppath;
if (objPath != "")
url += objPath + "/";
try
{
FtpWebRequest request = null;
try
{
FileInfo fi = new FileInfo(filePath);
using (FileStream fs = fi.OpenRead())
{
request = (FtpWebRequest)FtpWebRequest.Create(new Uri(url + fi.Name));
request.Credentials = new NetworkCredential(username, password);
request.KeepAlive = false;
request.Method = WebRequestMethods.Ftp.UploadFile;
request.UseBinary = true;
using (Stream stream = request.GetRequestStream())
{
int bufferLength = 5120;
byte[] buffer = new byte[bufferLength];
int i;
while ((i = fs.Read(buffer, 0, bufferLength)) > 0)
{
stream.Write(buffer, 0, i);
}
Console.WriteLine("FTP上传文件succesful");
}
}
}
catch (Exception ex)
{
Console.WriteLine("FTP上传文件：" + ex.Message);
}
finally
{
}
}
catch (Exception ex)
{
Console.WriteLine("FTP上传文件：" + ex.Message);
}
finally
{
}
}
catch (Exception ex)
{
Console.WriteLine("FTP上传文件：" + ex.Message);
}
}
//FTP下载文件
public static void FileDownLoad(string fileName)
{
FtpWebRequest request;
try
{
string downloadPath = @"D:";
FileStream fs = new FileStream(downloadPath + "\\" + fileName, FileMode.Create);
request = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftppath + fileName));
request.Method = WebRequestMethods.Ftp.DownloadFile;
request.UseBinary = true;
request.Credentials = new NetworkCredential(username, password);
request.UsePassive = false;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
Stream stream = response.GetResponseStream();
int bufferLength = 5120;
int i;
byte[] buffer = new byte[bufferLength];
i = stream.Read(buffer, 0, bufferLength);
while (i > 0)
{
fs.Write(buffer, 0, i);
i = stream.Read(buffer, 0, bufferLength);
}
stream.Close();
fs.Close();
response.Close();
}
catch (Exception ex)
{
Console.WriteLine("FTP下载文件：" + ex.Message);
}
}
//FTP删除文件
public static void FileDelete(string fileName)
{
try
{
string uri = ftppath + fileName;
FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
request.UseBinary = true;
request.Credentials = new NetworkCredential(username, password);
request.KeepAlive = false;
request.Method = WebRequestMethods.Ftp.DeleteFile;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
response.Close();
}
catch (Exception ex)
{
Console.WriteLine("FTP删除文件：" + ex.Message);
}
}
//FTP新建目录，上一级须先存在
public static void MakeDir(string dirName)
{
try
{
string uri = ftppath + dirName;
FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
request.UseBinary = true;
request.Credentials = new NetworkCredential(username, password);
request.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
response.Close();
}
catch (Exception ex)
{
Console.WriteLine("FTP新建目录：" + ex.Message);
}
}
//FTP删除目录，上一级须先存在
public static void DelDir(string dirName)
{
try
{
string uri = ftppath + dirName;
FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
reqFTP.Credentials = new NetworkCredential(username, password);
reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
Console.WriteLine("FTP删除目录：" + ex.Message);
}
}
}
