C# FTP上传文件及文件夹至服务器代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Net;
using System.Globalization;
using System.Text;
using System.Net;

namespace FTPwebsite
{
public partial class test3 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
private string ftpServerIP = "192.168.1.1";//服务器ip
private string ftpUserID = "admin";//用户名
private string ftpPassword = "123456";//密码

#region 上传文件

/// <summary>
/// 上传文件
/// </summary>
/// <param name="localFile">要上传到FTP服务器的本地文件</param>
/// <param name="ftpPath">FTP地址</param>
public void UpLoadFile(string localFile, string ftpPath)
{
if (!File.Exists(localFile))
{
Response.Write("文件：“" + localFile + "” 不存在！");
return;
}
FileInfo fileInf = new FileInfo(localFile);
FtpWebRequest reqFTP;

reqFTP = (FtpWebRequest)FtpWebRequest.Create(ftpPath);// 根据uri创建FtpWebRequest对象
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);// ftp用户名和密码
reqFTP.KeepAlive = false;// 默认为true，连接不会被关闭 // 在一个命令之后被执行
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;// 指定执行什么命令
reqFTP.UseBinary = true;// 指定数据传输类型
reqFTP.ContentLength = fileInf.Length;// 上传文件时通知服务器文件的大小
int buffLength = 2048;// 缓冲大小设置为2kb
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
{
Stream strm = reqFTP.GetRequestStream();// 把上传的文件写入流
contentLen = fs.Read(buff, 0, buffLength);// 每次读文件流的2kb

while (contentLen != 0)// 流内容没有结束
{
// 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();
Response.Write("文件【" + ftpPath + "/" + fileInf.Name + "】上传成功！<br/>");
}
catch (Exception ex)
{
Response.Write("上传文件【" + ftpPath+"/"+fileInf.Name + "】时，发生错误：" + ex.Message + "<br/>");
}
}

#endregion

#region 上传文件夹

/// <summary>
/// 上传整个目录
/// </summary>
/// <param name="localDir">要上传的目录的上一级目录</param>
/// <param name="ftpPath">FTP路径</param>
/// <param name="dirName">要上传的目录名</param>
/// <param name="ftpUser">FTP用户名（匿名为空）</param>
/// <param name="ftpPassword">FTP登录密码（匿名为空）</param>
public void UploadDirectory(string localDir, string ftpPath, string dirName)
{
string dir = localDir +dirName+ @"\"; //获取当前目录（父目录在目录名）
//检测本地目录是否存在
if (!Directory.Exists(dir))
{
Response.Write("本地目录：“" + dir + "” 不存在！<br/>");
return;
}
//检测FTP的目录路径是否存在
if (!CheckDirectoryExist(ftpPath, dirName))
{
MakeDir(ftpPath, dirName);//不存在，则创建此文件夹
}
List<List<string>> infos = GetDirDetails(dir); //获取当前目录下的所有文件和文件夹

//先上传文件
//Response.Write(dir + "下的文件数：" + infos[0].Count.ToString() + "<br/>");
for (int i = 0; i < infos[0].Count; i++)
{
Console.WriteLine(infos[0][i]);
UpLoadFile(dir + infos[0][i], ftpPath + dirName + @"/" + infos[0][i]);
}
//再处理文件夹
//Response.Write(dir + "下的目录数：" + infos[1].Count.ToString() + "<br/>");
for (int i = 0; i < infos[1].Count; i++)
{
UploadDirectory(dir, ftpPath + dirName + @"/", infos[1][i]);
//Response.Write("文件夹【" + dirName + "】上传成功！<br/>");
}
}

/// <summary>
/// 判断ftp服务器上该目录是否存在
/// </summary>
/// <param name="ftpPath">FTP路径目录</param>
/// <param name="dirName">目录上的文件夹名称</param>
/// <returns></returns>
private bool CheckDirectoryExist(string ftpPath, string dirName)
{
bool flag = true;
try
{
//实例化FTP连接
FtpWebRequest ftp = (FtpWebRequest)FtpWebRequest.Create(ftpPath + dirName);
ftp.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
ftp.Method = WebRequestMethods.Ftp.ListDirectory;
FtpWebResponse response = (FtpWebResponse)ftp.GetResponse();
response.Close();
}
catch (Exception)
{
flag = false;
}
return flag;
}

/// <summary>
/// 创建文件夹
/// </summary>
/// <param name="ftpPath">FTP路径</param>
/// <param name="dirName">创建文件夹名称</param>
public void MakeDir(string ftpPath, string dirName)
{

FtpWebRequest reqFTP;
try
{
string ui = (ftpPath + dirName).Trim();
reqFTP = (FtpWebRequest)FtpWebRequest.Create(ui);
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream ftpStream = response.GetResponseStream();
ftpStream.Close();
response.Close();
Response.Write("文件夹【" + dirName + "】创建成功！<br/>");
}

catch (Exception ex)
{
Response.Write("新建文件夹【" + dirName+"】时，发生错误：" + ex.Message);
}

}

/// <summary>
/// 获取目录下的详细信息
/// </summary>
/// <param name="localDir">本机目录</param>
/// <returns></returns>
private List<List<string>> GetDirDetails(string localDir)
{
List<List<string>> infos = new List<List<string>>();
try
{
infos.Add(Directory.GetFiles(localDir).ToList()); //获取当前目录的文件

infos.Add(Directory.GetDirectories(localDir).ToList()); //获取当前目录的目录

for (int i = 0; i < infos[0].Count; i++)
{
int index = infos[0][i].LastIndexOf(@"\");
infos[0][i] = infos[0][i].Substring(index + 1);
}
for (int i = 0; i < infos[1].Count; i++)
{
int index = infos[1][i].LastIndexOf(@"\");
infos[1][i] = infos[1][i].Substring(index + 1);
}
}
catch (Exception ex)
{
ex.ToString();
}
return infos;
}

#endregion

protected void Button1_Click(object sender, EventArgs e)
{
//FTP地址
string ftpPath = "ftp://192.168.1.1/";
//本机要上传的目录的父目录
string localPath = "E:\\发布\\";
//要上传的目录名
string fileName = "test1";

FileInfo fi = new FileInfo(localPath);
//判断上传文件是文件还是文件夹

4000
if ((fi.Attributes & FileAttributes.Directory) != 0)
{
//dir 如果是文件夹，则调用[上传文件夹]方法
UploadDirectory(localPath, ftpPath, fileName);
}
else
{
//file 如果是文件，则调用[上传文件]方法
UpLoadFile(localPath + fileName, ftpPath);
}

}
}
}