一个用C#写的代码,你看是否能用 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Net; using System.Net.FtpClient; using System.Text; using System.Threading.Tasks; using System.IO;namespace FTP_Client { public class FTPConnection {
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Net;
using System.Net.FtpClient;
using System.Text;
using System.Threading.Tasks;
using System.IO;namespace FTP_Client
{
public class FTPConnection
{
public FTPConnection() { } /// <summary>
/// 连接FTP服务器函数
/// </summary>
/// <param name="strServer">服务器IP</param>
/// <param name="strUser">用户名</param>
/// <param name="strPassword">密码</param>
public bool FTPIsConnected(string strServer, string strUser, string strPassword)
{
using (FtpClient ftp = new FtpClient())
{
ftp.Host = strServer;
ftp.Credentials = new NetworkCredential(strUser, strPassword);
ftp.Connect();
return ftp.IsConnected;
}
}
/// <summary>
/// FTP下载文件
/// </summary>
/// <param name="strServer">服务器IP</param>
/// <param name="strUser">用户名</param>
/// <param name="strPassword">密码</param>
/// <param name="Serverpath">服务器路径,例子:"/Serverpath/"</param>
/// <param name="localpath">本地保存路径</param>
/// <param name="filetype">所下载的文件类型,例子:".rte"</param>
public bool FTPIsdownload(string strServer, string strUser, string strPassword,string Serverpath, string localpath, string filetype)
{
FtpClient ftp = new FtpClient();
ftp.Host = strServer;
ftp.Credentials = new NetworkCredential(strUser, strPassword);
ftp.Connect(); string path = Serverpath;
string destinationDirectory = localpath;
List<string> documentname = new List<string>();
bool DownloadStatus = false; if (Directory.Exists(destinationDirectory))
{
#region 从FTP服务器下载文件
foreach (var ftpListItem in ftp.GetListing(path, FtpListOption.Modify | FtpListOption.Size)
.Where(ftpListItem => string.Equals(Path.GetExtension(ftpListItem.Name), filetype)))
{
string destinationPath = string.Format(@"{0}\{1}", destinationDirectory, ftpListItem.Name);
using (Stream ftpStream = ftp.OpenRead(ftpListItem.FullName))
using (FileStream fileStream = File.Create(destinationPath, (int)ftpStream.Length))
{
var buffer = new byte[200 * 1024];
int count;
while ((count = ftpStream.Read(buffer, 0, buffer.Length)) > 0)
{
fileStream.Write(buffer, 0, count);
}
}
documentname.Add(ftpListItem.Name);
}
#endregion #region 验证本地是否有该文件
string[] files = Directory.GetFiles(localpath, "*"+filetype);
int filenumber = 0;
foreach(string strfilename in files)
{
foreach(string strrecievefile in documentname)
{
if (strrecievefile == Path.GetFileName(strfilename))
{
filenumber++;
break;
}
}
}
if(filenumber==documentname.Count)
{
DownloadStatus = true;
}
#endregion
}
return DownloadStatus;
} }
}