using System
using System.Net
using System.Net.Sockets
using System.Text
using System.IO
namespace JySoft.SaleFrame.Facade
{
/// <summary>
/// FTP 的摘要说明。
/// </summary>
public class FTPServer
{
private string strRemoteHost
private int strRemotePort
private string strRemotePath
private string strRemoteUser
private string strRemotePass
private Boolean bConnected
#region 内部变量
/// <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>
/// 传输模式:二进制类型、ASCII类型
/// </summary>
public enum TransferType
{
/// <summary>
/// Binary
/// </summary>
Binary,
/// <summary>
/// ASCII
/// </summary>
ASCII
}
/// <summary>
/// 接收和发送数据的缓冲区
/// </summary>
private static int BLOCK_SIZE = 512
Byte[] buffer = new Byte[ BLOCK_SIZE]
/// <summary>
/// 编码方式
/// </summary>
Encoding ASCII = Encoding.Default
#endregion
#region 内部函数
#region 构造函数
/// <summary>
/// 缺省构造函数
/// </summary>
public FTPServer()
{
strRemoteHost = ""
strRemotePath = ""
strRemoteUser = ""
strRemotePass = ""
strRemotePort = 21
bConnected = false
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="remoteHost"></param>
/// <param name="remotePath"></param>
/// <param name="remoteUser"></param>
/// <param name="remotePass"></param>
/// <param name="remotePort"></param>
public FTPServer( string remoteHost, string remotePath, string remoteUser, string remotePass, int remotePort )
{
strRemoteHost = remoteHost
strRemotePath = remotePath
strRemoteUser = remoteUser
strRemotePass = remotePass
strRemotePort = remotePort
Connect()
}
#endregion
#region 登陆
/// <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()
{
socketControl = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp)
IPEndPoint ep = new IPEndPoint(IPAddress.Parse(RemoteHost), strRemotePort)
// 链接
try
{
socketControl.Connect(ep)
}
catch(Exception)
{
throw new IOException("连接不上FTP服务器！")
}
// 获取应答码
ReadReply()
if(iReplyCode != 220)
{
DisConnect()
throw new IOException(strReply.Substring(4))
}
try
{
// 登陆
SendCommand("USER "+strRemoteUser)
if( !(iReplyCode == 331 || iReplyCode == 230) )
{
CloseSocketConnect()//关闭连接
throw new IOException(strReply.Substring(4))
}
if( iReplyCode != 230 )
{
SendCommand("PASS "+strRemotePass)
if( !(iReplyCode == 230 || iReplyCode == 202) )
{
CloseSocketConnect()//关闭连接
throw new IOException(strReply.Substring(4))
}
}
}
catch
{
throw new IOException("登录用户名密码错误!")
}
bConnected = true
// 切换到目录
ChDir(strRemotePath)
}
/// <summary>
/// 关闭连接
/// </summary>
public void DisConnect()
{
if( socketControl != null )
{
SendCommand("QUIT")
}
CloseSocketConnect()
}
#endregion
#region 传输模式
/// <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>
/// <returns></returns>
public string[] Dir(string strMask)
{
// 建立链接
if(!bConnected)
{
Connect()
}
//建立进行数据连接的socket
Socket socketData = CreateDataSocket()
//传送命令
SendCommand("NLST " + strMask)
//分析应答代码
if(!(iReplyCode == 150 || iReplyCode == 125 || iReplyCode == 226))
{
return null
}
//获得结果
strMsg = ""
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>
/// 获取文件大小
/// </summary>
/// <param name="strFileName">文件名</param>
/// <returns>文件大小</returns>
private 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>
/// 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">文件名的匹配字符串</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(!strFile.Equals(""))//一般来说strFiles的最后一个元素可能是空字符串
{
Get(strFile,strFolder,strFile)
}
}
}
/// <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 Get(string strRemoteFileName,string strFolder,string strLocalFileName)
{
if(!bConnected)
{
Connect()
}
SetTransferType(TransferType.Binary)
if (strLocalFileName.Equals(""))
{
strLocalFileName = strRemoteFileName
}
if(!File.Exists(strLocalFileName))
{
Stream st = File.Create(strLocalFileName)
st.Close()
}
FileStream output = new
FileStream(strFolder + "\\" + strLocalFileName,FileMode.Create)
Socket socketData = CreateDataSocket()
SendCommand("RETR " + strRemoteFileName)
if(!(iReplyCode == 150 || iReplyCode == 125
|| iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4))
}
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)
{
//strFile是完整的文件名(包含路径)
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()
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))
}
}
}
#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
/// <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 = 0i <len &&partCount <= 6i++)
{
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("Can't connect to remote server")
}
return s
}
/// <summary>
/// 关闭socket连接(用于登录以前)
/// </summary>
private void CloseSocketConnect()
{
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()
{
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]
//seperator[0]是10,换行符是由13和0组成的,分隔后10后面虽没有字符串,
//但也会分配为空字符串给后面(也是最后一个)字符串数组,
//所以最后一个mess是没用的空字符串
//但为什么不直接取mess[0],因为只有最后一行字符串应答码与信息之间有空格
}
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>
private void SendCommand(string strCommand)
{
Byte[] cmdBytes = ASCII.GetBytes((strCommand + "\r\n").ToCharArray())
socketControl.Send(cmdBytes, cmdBytes.Length, 0)
ReadReply()
}
#endregion
}
}
System.Web.HttpUtility.UrlEncode('要编码的中文', System.Text.Encoding.GetEncoding("GB2312")) 你这样试一试， 应该可以了的。private string ftpServerIP = "服务器ip"//服务器ipprivate string ftpUserID = "ftp的用户名"//用户名
private string ftpPassword = "ftp的密码"//密码
//filename 为本地文件的绝对路径
//serverDir为服务器上的目录
private void Upload(string filename,string serverDir)
{
FileInfo fileInf = new FileInfo(filename)
string uri = string.Format("ftp://{0}/{1}/{2}", ftpServerIP,serverDir,fileInf.Name)
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
// 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)
{
// MessageBox.Show(ex.Message, "Upload Error")
Response.Write("Upload Error：" + ex.Message)
}
}
调用方法
string filename = "D:\\test.txt" //本地文件，需要上传的文件
string serverDir = "img" //上传到服务器的目录，必须存在
Upload(filename,serverDir)
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