前端页面代码：
<input id="fileUpload" type="file" runat="server" visible="false" /> <asp:FileUpload ID="FileUpload1" runat="server" /> <asp:Button ID="sBtn1" runat="server" OnClick="sBtn1_Click" Text="FTP上传" /> <asp:Button ID="sBtn2" runat="server" OnClick="sBtn2_Click" Text="FTP下载" /> <asp:Button ID="sBtn3" runat="server" OnClick="sBtn3_Click" Text="FTP删除" /> <asp:Button ID="sBtn4" runat="server" OnClick="sBtn4_Click" Text="FTP文件读取" /> <asp:Button ID="sBtn5" runat="server" OnClick="sBtn5_Click" Text="FTP操作" />
使用C#实例：
/// <summary>
/// FTP上传
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void sBtn1_Click(object sender, EventArgs e)
{
urlPath = Server.MapPath("~/file/");
//FTPHelper.Upload(FileUpload1, "192.168.0.190", "zhengdecai", "zhengdecai"); //需要现在做上传本地，然后在上传FTP
//FTPHelper.UploadSmall(urlPath + "ad2.gif", "public", "192.168.0.190", "zhengdecai", "zhengdecai");
//FTPHelper.UploadFtp(FileUpload1.PostedFile, FileUpload1.PostedFile.FileName, "public", "192.168.0.190", "zhengdecai", "zhengdecai");
//FTPHelper.CreateDirectory(urlPath, "192.168.0.190", "zhengdecai", "zhengdecai");
}
/// <summary>
/// FTP下载
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void sBtn2_Click(object sender, EventArgs e)
{
urlPath = Server.MapPath("~/file/");
string uri = "ftp://192.168.0.190/";
//FTPHelper.Download("zhengdecai", "zhengdecai", uri, urlPath, "ad1.gif");
//FTPHelper.Download(urlPath, "ad1.gif", "ad2.gif", "192.168.0.190", "zhengdecai", "zhengdecai");
}
/// <summary>
/// FTP删除
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void sBtn3_Click(object sender, EventArgs e)
{
//FTPHelper.DeleteFile(uri, "zhengdecai", "zhengdecai", "ad1.gif");
//FTPHelper.DeleteFtpFile(new string[2] { "ad1.gif", "ad2.gif" }, "public", "192.168.0.190", "zhengdecai", "zhengdecai"); //多张图片使用数组
}
/// <summary>
/// FTP获取
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void sBtn4_Click(object sender, EventArgs e)
{
//string[] LStr = FTPHelper.GetFileList("public", "192.168.0.190", "zhengdecai", "zhengdecai");
//FTPHelper.CheckFileOrPath("public", "192.168.0.190", "zhengdecai", "zhengdecai");
}
/// <summary>
/// FTP完全操作
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void sBtn5_Click(object sender, EventArgs e)
{
urlPath = Server.MapPath("~/file/");
FTPHelper ftpHelper = new FTPHelper("192.168.0.190", "", "zhengdecai", "zhengdecai", 21);
ftpHelper.Connect(); //建立连接
/*string[] fileP = ftpHelper.Dir("");
ftpHelper.newPutByGuid(urlPath + "5.gif", "ad1.gif");
ftpHelper.GetFileSize("1.jpg");
ftpHelper.GetFileInfo("1.jpg");
ftpHelper.Delete("2.jpg");
ftpHelper.Rename("1.jpg", "4.jpg");*/
//ftpHelper.Get("*", urlPath);
//ftpHelper.GetNoBinary("ad1.gif", urlPath, "ad5.gif");
//ftpHelper.Put(urlPath, "*"); //上传到根目录下面
ftpHelper.MkDir("zhdc");
ftpHelper.RmDir("zhdc");
ftpHelper.ChDir("public/");
ftpHelper.DisConnect(); //关闭连接
}类库信息：
/// <summary>
/// FTP文件操作类
/// </summary>
public class FTPHelper
{
#region FTP上的各种操作，传需要操作的FTP服务器信息
/// <summary>
/// FTP上传文件
/// </summary>
/// <param name="fileUpload">上传控件</param>
/// <param name="ftpServerIP">上传文件服务器IP</param>
/// <param name="ftpUserID">服务器用户名</param>
/// <param name="ftpPassword">服务器密码</param>
/// <returns></returns>
public static string Upload(FileUpload fileUpload, string ftpServerIP, string ftpUserID, string ftpPassword)
{
string filename = fileUpload.FileName;
string sRet = "上传成功！";
FileInfo fileInf = new FileInfo(fileUpload.PostedFile.FileName);
string uri = "ftp://" + ftpServerIP + "/" + filename;
FtpWebRequest reqFTP;
// 根据uri创建FtpWebRequest对象
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
// ftp用户名和密码
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
// 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;
// 指定数据传输类型
reqFTP.UseBinary = true;
reqFTP.UsePassive = false;
// 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2kb
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2kb
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)
{
sRet = ex.Message;
}
return sRet;
}
/// <summary>
/// FTP下载文件
/// </summary>
/// <param name="userId">FTP用户名</param>
/// <param name="pwd">FTP密码</param>
/// <param name="ftpPath">FTP文件路径</param>
/// <param name="filePath">下载保存路径</param>
/// <param name="fileName">FTP文件名</param>
/// <returns></returns>
public static string Download(string userId, string pwd, string ftpPath, string filePath, string fileName)
{
string sRet = "下载成功！";
FtpWebRequest reqFTP;
try
{
FileStream outputStream = new FileStream(filePath + fileName, FileMode.Create);
// 根据uri创建FtpWebRequest对象
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpPath + fileName));
// 指定执行什么命令
reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
// 指定数据传输类型
reqFTP.UseBinary = true;
reqFTP.UsePassive = false;
// FTP用户名和密码
reqFTP.Credentials = new NetworkCredential(userId, pwd);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
// 把下载的文件写入流
Stream ftpStream = response.GetResponseStream();
long cl = response.ContentLength;
// 缓冲大小设置为2kb
int bufferSize = 2048;
int readCount;
byte[] buffer = new byte[bufferSize];
// 每次读文件流的2kb
readCount = ftpStream.Read(buffer, 0, bufferSize);
while (readCount > 0)
{
// 把内容从文件流写入
outputStream.Write(buffer, 0, readCount);
readCount = ftpStream.Read(buffer, 0, bufferSize);
}
//关闭两个流和FTP连接
ftpStream.Close();
outputStream.Close();
response.Close();
}
catch (Exception ex)
{
sRet = ex.Message;
}
//返回下载结果（是否下载成功）
return sRet;
}
/// <summary>
/// FTP删除文件
/// </summary>
/// <param name="ftpPath">FTP文件路径</param>
/// <param name="userId">FTP用户名</param>
/// <param name="pwd">FTP密码</param>
/// <param name="fileName">FTP文件名</param>
/// <returns></returns>
public static string DeleteFile(string ftpPath, string userId, string pwd, string fileName)
{
string sRet = "删除成功！";
FtpWebResponse Respose = null;
FtpWebRequest reqFTP = null;
Stream localfile = null;
Stream stream = null;
try
{
//根据uri创建FtpWebRequest对象
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(string.Format(@"{0}{1}", ftpPath, fileName)));
//提供账号密码的验证
reqFTP.Credentials = new NetworkCredential(userId, pwd);
//默认为true是上传完后不会关闭FTP连接
reqFTP.KeepAlive = false;
//执行删除操作
reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
Respose = (FtpWebResponse)reqFTP.GetResponse();
}
catch (Exception ex)
{
sRet = ex.Message;
}
finally
{
//关闭连接跟流
if (Respose != null)
Respose.Close();
if (localfile != null)
localfile.Close();
if (stream != null)
stream.Close();
}
//返回执行状态
return sRet;
}
/// <summary>
/// 从FTP上下载文件，下载后文件重命名
/// </summary>
/// <param name="filePath">需要保存的文件路径</param>
/// <param name="ImageSrc">保存文件名</param>
/// <param name="ImageName">保存文件名称</param>
/// <param name="ftpServerIP">FTP的IP地址</param>
/// <param name="ftpUserName">FTP登录名</param>
/// <param name="ftpPwd">FTP登录用户名</param>
public static void Download(string filePath, string ImageSrc, string ImageName, string ftpServerIP, string ftpUserName, string ftpPwd)
{
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
}
using (FileStream OutputStream = new FileStream(filePath + "\\" + ImageName, FileMode.Create))
{
FtpWebRequest ReqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + ImageSrc));
ReqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
ReqFTP.UseBinary = true;
ReqFTP.Credentials = new NetworkCredential(ftpUserName, ftpPwd);
using (FtpWebResponse response = (FtpWebResponse)ReqFTP.GetResponse())
{
using (Stream FtpStream = response.GetResponseStream())
{
long Cl = response.ContentLength;
int bufferSize = 2048;
int readCount;
byte[] buffer = new byte[bufferSize];
readCount = FtpStream.Read(buffer, 0, bufferSize);
while (readCount > 0)
{
OutputStream.Write(buffer, 0, readCount);
readCount = FtpStream.Read(buffer, 0, bufferSize);
}
FtpStream.Close();
}
response.Close();
}
OutputStream.Close();
}
}
/// <summary>
/// 从服务器上传文件到FTP上
/// </summary>
/// <param name="sFileDstPath">需上传文件路径</param>
/// <param name="FolderName">FTP上的文夹路径名</param>
/// <param name="ftpServerIP">FTP的IP地址</param>
/// <param name="ftpUserName">FTP登录名</param>
/// <param name="ftpPwd">FTP登录用户名</param>
public static void UploadSmall(string sFileDstPath, string FolderName, string ftpServerIP, string ftpUserName, string ftpPwd)
{
FileInfo fileInf = new FileInfo(sFileDstPath);
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + (FolderName != "" ? (FolderName + "/") : "") + fileInf.Name));
reqFTP.Credentials = new NetworkCredential(ftpUserName, ftpPwd);
reqFTP.KeepAlive = false;
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
reqFTP.UseBinary = true;
reqFTP.ContentLength = fileInf.Length;
int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
using (FileStream fs = fileInf.OpenRead())
{
using (Stream strm = reqFTP.GetRequestStream())
{
contentLen = fs.Read(buff, 0, buffLength);
while (contentLen != 0)
{
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
}
strm.Close();
}
fs.Close();
}
}
/// <summary>
/// 删除服务器上的文件
/// </summary>
/// <param name="sFilePath">上传文件路径</param>
public static void DeleteWebServerFile(string sFilePath)
{
if (File.Exists(sFilePath))
{
File.Delete(sFilePath);
}
}
/// <summary>
/// 删除FTP上的文件
/// </summary>
/// <param name="IName">需删除的批量文件夹名</param>
/// <param name="FolderName">FTP上的文夹路径名</param>
/// <param name="ftpServerIP">FTP的IP地址</param>
/// <param name="ftpUserName">FTP登录名</param>
/// <param name="ftpPwd">FTP登录用户名</param>
public static void DeleteFtpFile(string[] IName, string FolderName, string ftpServerIP, string ftpUserName, string ftpPwd)
{
foreach (string ImageName in IName)
{
string[] FileList = GetFileList(FolderName, ftpServerIP, ftpUserName, ftpPwd);
for (int i = 0; i < FileList.Length; i++)
{
string Name = FileList[i].ToString();
if (Name == ImageName)
{
FtpWebRequest ReqFTP;
ReqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + FolderName + "/" + ImageName));
ReqFTP.Credentials = new NetworkCredential(ftpUserName, ftpPwd);
ReqFTP.KeepAlive = false;
ReqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
ReqFTP.UseBinary = true;
using (FtpWebResponse Response = (FtpWebResponse)ReqFTP.GetResponse())
{
long size = Response.ContentLength;
using (Stream datastream = Response.GetResponseStream())
{
using (StreamReader sr = new StreamReader(datastream))
{
sr.ReadToEnd();
sr.Close();
}
datastream.Close();
}
Response.Close();
}
}
}
}
}
/// <summary>
/// 检查FTP上文件是否存在
/// </summary>
/// <param name="FolderName">FTP上的文夹路径名</param>
/// <param name="ftpServerIP">FTP的IP地址</param>
/// <param name="ftpUserName">FTP登录名</param>
/// <param name="ftpPwd">FTP登录用户名</param>
/// <returns></returns>
public static string[] GetFileList(string FolderName, string ftpServerIP, string ftpUserName, string ftpPwd)
{
string[] downloadFiles;
StringBuilder result = new StringBuilder();
FtpWebRequest reqFTP;
try
{
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + (FolderName != "" ? (FolderName + "/") : "")));
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(ftpUserName, ftpPwd);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
WebResponse response = reqFTP.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
while (line != null)
{
result.Append(line);
result.Append("\n");
line = reader.ReadLine();
}
// to remove the trailing '\n'
result.Remove(result.ToString().LastIndexOf('\n'), 1);
reader.Close();
response.Close();
return result.ToString().Split('\n');
}
catch (Exception ex)
{
downloadFiles = null;
return downloadFiles;
}
}
/// <summary>
/// 从客户端上传文件到FTP上
/// </summary>
/// <param name="sFilePath">需要保存到本地的文件路径</param>
/// <param name="filename">需要保存到本地的文件名</param>
/// <param name="FolderName">FTP上的文夹路径名</param>
/// <param name="ftpServerIP">FTP的IP地址</param>
/// <param name="ftpUserName">FTP登录名</param>
/// <param name="ftpPwd">FTP登录用户名</param>
public static void UploadFtp(HttpPostedFile sFilePath, string filename, string FolderName, string ftpServerIP, string ftpUserName, string ftpPwd)
{
//获取的服务器路径
//FileInfo fileInf = new FileInfo(sFilePath);
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + (FolderName != "" ? (FolderName + "/") : "") + filename));
reqFTP.Credentials = new NetworkCredential(ftpUserName, ftpPwd);
reqFTP.KeepAlive = false;
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
reqFTP.UseBinary = true;
reqFTP.ContentLength = sFilePath.ContentLength;
//设置缓存
int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
using (Stream fs = sFilePath.InputStream)
{
using (Stream strm = reqFTP.GetRequestStream())
{
contentLen = fs.Read(buff, 0, buffLength);
while (contentLen != 0)
{
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
}
strm.Close();
}
fs.Close();
}
}
/// <summary>
/// FTP上创建目录
/// </summary>
/// <param name="FolderName">FTP上的文夹路径名</param>
/// <param name="ftpServerIP">FTP的IP地址</param>
/// <param name="ftpUserName">FTP登录名</param>
/// <param name="ftpPwd">FTP登录用户名</param>
public static void CreateDirectory(string FolderName, string ftpServerIP, string ftpUserName, string ftpPwd)
{
//创建日期目录
try
{
FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + FolderName));
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(ftpUserName, ftpPwd);
reqFTP.KeepAlive = false;
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
}
catch
{
}
}
public static Regex regexName = new Regex(@"[^\s]*$", RegexOptions.Compiled);
/// <summary>
/// 检查日期目录和文件是否存在
/// </summary>
/// <param name="FolderName">FTP上的文夹路径名</param>
/// <param name="ftpServerIP">FTP的IP地址</param>
/// <param name="ftpUserName">FTP登录名</param>
/// <param name="ftpPwd">FTP登录用户名</param>
/// <returns></returns>
public static bool CheckFileOrPath(string FolderName, string ftpServerIP, string ftpUserName, string ftpPwd)
{
//检查一下日期目录是否存在
FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/"));
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(ftpUserName, ftpPwd);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
Stream stream = reqFTP.GetResponse().GetResponseStream();
using (StreamReader sr = new StreamReader(stream))
{
string line = sr.ReadLine();
while (!string.IsNullOrEmpty(line))
{
GroupCollection gc = regexName.Match(line).Groups;
if (gc.Count != 1)
{
throw new ApplicationException("FTP 返回的字串格式不正确");
}
string path = gc[0].Value;
if (path == FolderName)
{
return true;
}
line = sr.ReadLine();
}
}
return false;
}
#endregion
#region FTP操作管理，需要实例化的时候把FTP服务器连接信息
public static object obj = new object();
#region 构造函数
/// <summary>
/// 缺省构造函数
/// </summary>
public FTPHelper()
{
strRemoteHost = "";
strRemotePath = "";
strRemoteUser = "";
strRemotePass = "";
strRemotePort = 21;
bConnected = false;
}
/// <summary>
/// 构造函数
/// </summary>
public FTPHelper(string remoteHost, string remotePath, string remoteUser, string remotePass, int remotePort)
{
strRemoteHost = remoteHost;
strRemotePath = remotePath;
strRemoteUser = remoteUser;
strRemotePass = remotePass;
strRemotePort = remotePort;
Connect();
}
#endregion
#region 字段
private int strRemotePort;
private Boolean bConnected;
private string strRemoteHost;
private string strRemotePass;
private string strRemoteUser;
private string strRemotePath;
/// <summary>
/// 服务器返回的应答信息(包含应答码)
/// </summary>
private string strMsg;
/// <summary>
/// 服务器返回的应答信息(包含应答码)
/// </summary>
private string strReply;
/// <summary>
/// 服务器返回的应答码
/// </summary>
private int iReplyCode;
/// <summary>
/// 进行控制连接的socket
/// </summary>
private Socket socketControl;
/// <summary>
/// 传输模式
/// </summary>
private TransferType trType;
/// <summary>
/// 接收和发送数据的缓冲区
/// </summary>
public static int BLOCK_SIZE = 512;
/// <summary>
/// 编码方式
/// </summary>
Encoding ASCII = Encoding.ASCII;
/// <summary>
/// 字节数组
/// </summary>
Byte[] buffer = new Byte[BLOCK_SIZE];
#endregion
#region 属性
/// <summary>
/// FTP服务器IP地址
/// </summary>
public string RemoteHost
{
get
{
return strRemoteHost;
}
set
{
strRemoteHost = value;
}
}
/// <summary>
/// FTP服务器端口
/// </summary>
public int RemotePort
{
get
{
return strRemotePort;
}
set
{
strRemotePort = value;
}
}
/// <summary>
/// 当前服务器目录
/// </summary>
public string RemotePath
{
get
{
return strRemotePath;
}
set
{
strRemotePath = value;
}
}
/// <summary>
/// 登录用户账号
/// </summary>
public string RemoteUser
{
set
{
strRemoteUser = value;
}
}
/// <summary>
/// 用户登录密码
/// </summary>
public string RemotePass
{
set
{
strRemotePass = value;
}
}
/// <summary>
/// 是否登录
/// </summary>
public bool Connected
{
get
{
return bConnected;
}
}
#endregion
#region 链接
/// <summary>
/// 建立连接
/// </summary>
public void Connect()
{
lock (obj)
{
socketControl = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint ep = new IPEndPoint(IPAddress.Parse(RemoteHost), strRemotePort);
try
{
socketControl.Connect(ep);
}
catch (Exception)
{
throw new IOException("不能连接ftp服务器");
}
}
ReadReply();
if (iReplyCode != 220)
{
DisConnect();
throw new IOException(strReply.Substring(4));
}
SendCommand("USER " + strRemoteUser);
if (!(iReplyCode == 331 || iReplyCode == 230))
{
CloseSocketConnect();
throw new IOException(strReply.Substring(4));
}
if (iReplyCode != 230)
{
SendCommand("PASS " + strRemotePass);
if (!(iReplyCode == 230 || iReplyCode == 202))
{
CloseSocketConnect();
throw new IOException(strReply.Substring(4));
}
}
bConnected = true;
ChDir(strRemotePath);
}
/// <summary>
/// 关闭连接
/// </summary>
public void DisConnect()
{
if (socketControl != null)
{
SendCommand("QUIT");
}
CloseSocketConnect();
}
#endregion
#region 传输模式
/// <summary>
/// 传输模式:二进制类型、ASCII类型
/// </summary>
public enum TransferType { Binary, ASCII };
/// <summary>
/// 设置传输模式
/// </summary>
/// <param name="ttType">传输模式</param>
public void SetTransferType(TransferType ttType)
{
if (ttType == TransferType.Binary)
{
SendCommand("TYPE I");//binary类型传输
}
else
{
SendCommand("TYPE A");//ASCII类型传输
}
if (iReplyCode != 200)
{
throw new IOException(strReply.Substring(4));
}
else
{
trType = ttType;
}
}
/// <summary>
/// 获得传输模式
/// </summary>
/// <returns>传输模式</returns>
public TransferType GetTransferType()
{
return trType;
}
#endregion
#region 文件操作
/// <summary>
/// 获得文件列表
/// </summary>
/// <param name="strMask">文件名的匹配字符串</param>
public string[] Dir(string strMask)
{
if (!bConnected)
{
Connect();
}
Socket socketData = CreateDataSocket();
SendCommand("NLST " + strMask);
if (!(iReplyCode == 150 || iReplyCode == 125 || iReplyCode == 226))
{
throw new IOException(strReply.Substring(4));
}
strMsg = "";
Thread.Sleep(2000);
while (true)
{
int iBytes = socketData.Receive(buffer, buffer.Length, 0);
strMsg += ASCII.GetString(buffer, 0, iBytes);
if (iBytes < buffer.Length)
{
break;
}
}
char[] seperator = { '\n' };
string[] strsFileList = strMsg.Split(seperator);
socketData.Close(); //数据socket关闭时也会有返回码
if (iReplyCode != 226)
{
ReadReply();
if (iReplyCode != 226)
{
throw new IOException(strReply.Substring(4));
}
}
return strsFileList;
}
/// <summary>
/// 本地文件读取（没用过）
/// </summary>
/// <param name="strFileName"></param>
/// <param name="strGuid"></param>
public void newPutByGuid(string strFileName, string strGuid)
{
if (!bConnected)
{
Connect();
}
string str = strFileName.Substring(0, strFileName.LastIndexOf("\\"));
string strTypeName = strFileName.Substring(strFileName.LastIndexOf("."));
strGuid = str + "\\" + strGuid;
Socket socketData = CreateDataSocket();
SendCommand("STOR " + Path.GetFileName(strGuid));
if (!(iReplyCode == 125 || iReplyCode == 150))
{
throw new IOException(strReply.Substring(4));
}
FileStream input = new FileStream(strGuid, FileMode.Open);
input.Flush();
int iBytes = 0;
while ((iBytes = input.Read(buffer, 0, buffer.Length)) > 0)
{
socketData.Send(buffer, iBytes, 0);
}
input.Close();
if (socketData.Connected)
{
socketData.Close();
}
if (!(iReplyCode == 226 || iReplyCode == 250))
{
ReadReply();
if (!(iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
}
}
/// <summary>
/// 获取文件大小
/// </summary>
/// <param name="strFileName">文件名</param>
/// <returns>文件大小</returns>
public long GetFileSize(string strFileName)
{
if (!bConnected)
{
Connect();
}
SendCommand("SIZE " + Path.GetFileName(strFileName));
long lSize = 0;
if (iReplyCode == 213)
{
lSize = Int64.Parse(strReply.Substring(4));
}
else
{
throw new IOException(strReply.Substring(4));
}
return lSize;
}
/// <summary>
/// 获取文件信息
/// </summary>
/// <param name="strFileName">文件名</param>
/// <returns>文件大小</returns>
public string GetFileInfo(string strFileName)
{
if (!bConnected)
{
Connect();
}
Socket socketData = CreateDataSocket();
SendCommand("LIST " + strFileName);
string strResult = "";
if (!(iReplyCode == 150 || iReplyCode == 125
|| iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
byte[] b = new byte[512];
MemoryStream ms = new MemoryStream();
while (true)
{
int iBytes = socketData.Receive(b, b.Length, 0);
ms.Write(b, 0, iBytes);
if (iBytes <= 0)
{
break;
}
}
byte[] bt = ms.GetBuffer();
strResult = System.Text.Encoding.ASCII.GetString(bt);
ms.Close();
return strResult;
}
/// <summary>
/// 删除
/// </summary>
/// <param name="strFileName">待删除文件名</param>
public void Delete(string strFileName)
{
if (!bConnected)
{
Connect();
}
SendCommand("DELE " + strFileName);
if (iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
}
/// <summary>
/// 重命名(如果新文件名与已有文件重名,将覆盖已有文件)
/// </summary>
/// <param name="strOldFileName">旧文件名</param>
/// <param name="strNewFileName">新文件名</param>
public void Rename(string strOldFileName, string strNewFileName)
{
if (!bConnected)
{
Connect();
}
SendCommand("RNFR " + strOldFileName);
if (iReplyCode != 350)
{
throw new IOException(strReply.Substring(4));
}
// 如果新文件名与原有文件重名,将覆盖原有文件
SendCommand("RNTO " + strNewFileName);
if (iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
}
#endregion
#region 上传和下载
/// <summary>
/// 下载一批文件
/// </summary>
/// <param name="strFileNameMask">文件夹名称</param>
/// <param name="strFolder">本地目录(不得以\结束)</param>
public void Get(string strFileNameMask, string strFolder)
{
if (!bConnected)
{
Connect();
}
string[] strFiles = Dir(strFileNameMask);
foreach (string strFile in strFiles)
{
if (!bConnected)
{
Connect();
}
if (!strFile.Equals(""))//一般来说strFiles的最后一个元素可能是空字符串
{
Get(strFileNameMask,strFile.Replace("\r", ""), strFolder, strFile.Replace("\r", ""));
}
}
}
/// <summary>
/// 下载一个文件
/// </summary>
/// <param name="strFileNameMask">文件夹：下载一个文件的时候，不需要传值</param>
/// <param name="strRemoteFileName">要下载的文件名</param>
/// <param name="strFolder">本地目录(不得以\结束)</param>
/// <param name="strLocalFileName">保存在本地时的文件名</param>
public void Get(string strFileNameMask, string strRemoteFileName, string strFolder, string strLocalFileName)
{
Socket socketData = CreateDataSocket();
try
{
if (!bConnected)
{
Connect();
}
SetTransferType(TransferType.Binary);
if (strLocalFileName.Equals(""))
{
strLocalFileName = strRemoteFileName;
}
SendCommand("RETR " + (strFileNameMask != "" ? (strFileNameMask + "/") : "") + strRemoteFileName);
if (!(iReplyCode == 150 || iReplyCode == 125 || iReplyCode == 226 || iReplyCode == 250))
{
if (iReplyCode == 550)
{
Get(strFileNameMask + strRemoteFileName, strFolder + "\\" + strRemoteFileName);
}
else
{
throw new IOException(strReply.Substring(4));
}
}
FileHelper.CreateDir(strFolder);
FileStream output = new FileStream(strFolder + "\\" + strLocalFileName, FileMode.Create);
while (true)
{
int iBytes = socketData.Receive(buffer, buffer.Length, 0);
output.Write(buffer, 0, iBytes);
if (iBytes <= 0)
{
break;
}
}
output.Close();
if (socketData.Connected)
{
socketData.Close();
}
if (!(iReplyCode == 226 || iReplyCode == 250))
{
ReadReply();
if (!(iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
}
}
catch
{
socketData.Close();
socketData = null;
socketControl.Close();
bConnected = false;
socketControl = null;
}
}
/// <summary>
/// 下载一个文件
/// </summary>
/// <param name="strRemoteFileName">要下载的文件名</param>
/// <param name="strFolder">本地目录(不得以\结束)</param>
/// <param name="strLocalFileName">保存在本地时的文件名</param>
public void GetNoBinary(string strRemoteFileName, string strFolder, string strLocalFileName)
{
if (!bConnected)
{
Connect();
}
if (strLocalFileName.Equals(""))
{
strLocalFileName = strRemoteFileName;
}
Socket socketData = CreateDataSocket();
SendCommand("RETR " + strRemoteFileName);
if (!(iReplyCode == 150 || iReplyCode == 125 || iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
FileStream output = new FileStream(strFolder + "\\" + strLocalFileName, FileMode.Create);
while (true)
{
int iBytes = socketData.Receive(buffer, buffer.Length, 0);
output.Write(buffer, 0, iBytes);
if (iBytes <= 0)
{
break;
}
}
output.Close();
if (socketData.Connected)
{
socketData.Close();
}
if (!(iReplyCode == 226 || iReplyCode == 250))
{
ReadReply();
if (!(iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
}
}
/// <summary>
/// 上传一批文件
/// </summary>
/// <param name="strFolder">本地目录(不得以\结束)</param>
/// <param name="strFileNameMask">文件名匹配字符(可以包含*和?)</param>
public void Put(string strFolder, string strFileNameMask)
{
string[] strFiles = Directory.GetFiles(strFolder, strFileNameMask);
foreach (string strFile in strFiles)
{
Put(strFile);
}
}
/// <summary>
/// 上传一个文件
/// </summary>
/// <param name="strFileName">本地文件名</param>
public void Put(string strFileName)
{
if (!bConnected)
{
Connect();
}
Socket socketData = CreateDataSocket();
if (Path.GetExtension(strFileName) == "")
SendCommand("STOR " + Path.GetFileNameWithoutExtension(strFileName));
else
SendCommand("STOR " + Path.GetFileName(strFileName));
if (!(iReplyCode == 125 || iReplyCode == 150))
{
throw new IOException(strReply.Substring(4));
}
FileStream input = new FileStream(strFileName, FileMode.Open);
int iBytes = 0;
while ((iBytes = input.Read(buffer, 0, buffer.Length)) > 0)
{
socketData.Send(buffer, iBytes, 0);
}
input.Close();
if (socketData.Connected)
{
socketData.Close();
}
if (!(iReplyCode == 226 || iReplyCode == 250))
{
ReadReply();
if (!(iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
}
}
/// <summary>
/// 上传一个文件（没用过）
/// </summary>
/// <param name="strFileName">本地文件名</param>
public void PutByGuid(string strFileName, string strGuid)
{
if (!bConnected)
{
Connect();
}
string str = strFileName.Substring(0, strFileName.LastIndexOf("\\"));
string strTypeName = strFileName.Substring(strFileName.LastIndexOf("."));
strGuid = str + "\\" + strGuid;
System.IO.File.Copy(strFileName, strGuid);
System.IO.File.SetAttributes(strGuid, System.IO.FileAttributes.Normal);
Socket socketData = CreateDataSocket();
SendCommand("STOR " + Path.GetFileName(strGuid));
if (!(iReplyCode == 125 || iReplyCode == 150))
{
throw new IOException(strReply.Substring(4));
}
FileStream input = new FileStream(strGuid, FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read);
int iBytes = 0;
while ((iBytes = input.Read(buffer, 0, buffer.Length)) > 0)
{
socketData.Send(buffer, iBytes, 0);
}
input.Close();
File.Delete(strGuid);
if (socketData.Connected)
{
socketData.Close();
}
if (!(iReplyCode == 226 || iReplyCode == 250))
{
ReadReply();
if (!(iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
}
}
#endregion
#region 目录操作
/// <summary>
/// 创建目录
/// </summary>
/// <param name="strDirName">目录名</param>
public void MkDir(string strDirName)
{
if (!bConnected)
{
Connect();
}
SendCommand("MKD " + strDirName);
if (iReplyCode != 257)
{
throw new IOException(strReply.Substring(4));
}
}
/// <summary>
/// 删除目录
/// </summary>
/// <param name="strDirName">目录名</param>
public void RmDir(string strDirName)
{
if (!bConnected)
{
Connect();
}
SendCommand("RMD " + strDirName);
if (iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
}
/// <summary>
/// 改变目录
/// </summary>
/// <param name="strDirName">新的工作目录名</param>
public void ChDir(string strDirName)
{
if (strDirName.Equals(".") || strDirName.Equals(""))
{
return;
}
if (!bConnected)
{
Connect();
}
SendCommand("CWD " + strDirName);
if (iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
this.strRemotePath = strDirName;
}
#endregion
#region 内部函数
/// <summary>
/// 将一行应答字符串记录在strReply和strMsg,应答码记录在iReplyCode
/// </summary>
private void ReadReply()
{
strMsg = "";
strReply = ReadLine();
iReplyCode = Int32.Parse(strReply.Substring(0, 3));
}
/// <summary>
/// 建立进行数据连接的socket
/// </summary>
/// <returns>数据连接socket</returns>
private Socket CreateDataSocket()
{
SendCommand("PASV");
if (iReplyCode != 227)
{
throw new IOException(strReply.Substring(4));
}
int index1 = strReply.IndexOf('(');
int index2 = strReply.IndexOf(')');
string ipData = strReply.Substring(index1 + 1, index2 - index1 - 1);
int[] parts = new int[6];
int len = ipData.Length;
int partCount = 0;
string buf = "";
for (int i = 0; i < len && partCount <= 6; i++)
{
char ch = Char.Parse(ipData.Substring(i, 1));
if (Char.IsDigit(ch))
buf += ch;
else if (ch != ',')
{
throw new IOException("Malformed PASV strReply: " + strReply);
}
if (ch == ',' || i + 1 == len)
{
try
{
parts[partCount++] = Int32.Parse(buf);
buf = "";
}
catch (Exception)
{
throw new IOException("Malformed PASV strReply: " + strReply);
}
}
}
string ipAddress = parts[0] + "." + parts[1] + "." + parts[2] + "." + parts[3];
int port = (parts[4] << 8) + parts[5];
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint ep = new IPEndPoint(IPAddress.Parse(ipAddress), port);
try
{
s.Connect(ep);
}
catch (Exception)
{
throw new IOException("无法连接ftp服务器");
}
return s;
}
/// <summary>
/// 关闭socket连接(用于登录以前)
/// </summary>
private void CloseSocketConnect()
{
lock (obj)
{
if (socketControl != null)
{
socketControl.Close();
socketControl = null;
}
bConnected = false;
}
}
/// <summary>
/// 读取Socket返回的所有字符串
/// </summary>
/// <returns>包含应答码的字符串行</returns>
private string ReadLine()
{
lock (obj)
{
while (true)
{
int iBytes = socketControl.Receive(buffer, buffer.Length, 0);
strMsg += ASCII.GetString(buffer, 0, iBytes);
if (iBytes < buffer.Length)
{
break;
}
}
}
char[] seperator = { '\n' };
string[] mess = strMsg.Split(seperator);
if (strMsg.Length > 2)
{
strMsg = mess[mess.Length - 2];
}
else
{
strMsg = mess[0];
}
if (!strMsg.Substring(3, 1).Equals(" ")) //返回字符串正确的是以应答码(如220开头,后面接一空格,再接问候字符串)
{
return ReadLine();
}
return strMsg;
}
/// <summary>
/// 发送命令并获取应答码和最后一行应答字符串
/// </summary>
/// <param name="strCommand">命令</param>
public void SendCommand(String strCommand)
{
lock (obj)
{
Byte[] cmdBytes = Encoding.ASCII.GetBytes((strCommand + "\r\n").ToCharArray());
socketControl.Send(cmdBytes, cmdBytes.Length, 0);
Thread.Sleep(500);
ReadReply();
}
}
#endregion
#endregion
}FTP搭建及操作后效果图：
上面工具类中有两种FTP操作方式，根据自己的开发需求选择不同的方式。
以上类库内容来源互联网，站长稍作整理
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