winForm上传文件指定文件到远程服务器
听说socket可以实现，求指教 --------------------编程问答-------------------- 上传指定文件到远程服务器 --------------------编程问答-------------------- --------------------编程问答----------------------------------------编程问答--------------------
using System;
using System.Net;
using System.IO;
using System.Text;
using System.Net.Sockets;
using log4net;
namespace AutoUploadPDFFiles
{
///<summary>
/// FTP客户端类库
///</summary>
public class FTPClient
{
private string
remoteHost, remotePath, remoteUser, remotePass, mes;
private int remotePort, bytes;
private Socket clientSocket;
private int retValue;
private Boolean debug;
private Boolean logined;
private string reply;
private static int BLOCK_SIZE = 512;
private ILog logger;
Byte[] buffer = new Byte[BLOCK_SIZE];
Encoding ASCII = Encoding.ASCII;
public FTPClient()
{
remoteHost = "localhost";
remotePath = ".";
remoteUser = "FTPUser";
remotePass = "abcDEF123";
remotePort = 21;
debug = false;
logined = false;
logger = LogManager.GetLogger("logAll");
}
public string RemoteHost
{
get { return remoteHost; }
set { remoteHost = value; }
}
public int RemotePort
{
get { return remotePort; }
set { remotePort = value; }
}
public string RemotePath
{
get { return remotePath; }
set { remotePath = value; }
}
public string UserName
{
set { remoteUser = value; }
}
/// <summary>
/// 获取或设置远程主机登陆密码
/// </summary>
public string Password
{
set { remotePass = value; }
}
public string[] GetFileList(string mask, bool longDirListing)
{
if (!logined)
{
Login();
}
Socket cSocket = createDataSocket();
if (!longDirListing)
sendCommand("NLST " + mask);
else
sendCommand("LIST " + mask);
if (!(retValue == 150 || retValue == 125))
{
throw new IOException(reply.Substring(4));
}
mes = "";
while (true)
{
int bytes = cSocket.Receive(buffer, buffer.Length, 0);
mes += ASCII.GetString(buffer, 0, bytes);
if (bytes < buffer.Length)
{
break;
}
}
char[] seperator = { '\n' };
string[] mess = mes.Split(seperator);
cSocket.Close();
readReply();
if (retValue != 226)
{
throw new IOException(reply.Substring(4));
}
return mess;
}
public long GetFileSize(string fileName)
{
if (!logined)
{
Login();
}
sendCommand("SIZE " + fileName);
long size = 0;
if (retValue == 213)
{
size = Int64.Parse(reply.Substring(4));
}
else
{
throw new IOException(reply.Substring(4));
}
return size;
}
public void Login()
{
clientSocket = new
Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint ep = new
IPEndPoint(Dns.Resolve(remoteHost).AddressList[0], remotePort);
try
{
logger.Info("begin to connect." + remoteUser + ":" + remotePass);
clientSocket.Connect(ep);
}
catch (Exception ex)
{
logger.Error(ex.Message);
throw new IOException("Couldn't connect to remote server");
}
readReply();
if (retValue != 220)
{
Close();
logger.Info(reply);
throw new IOException(reply.Substring(4));
}
if (debug)
Console.WriteLine("USER " + remoteUser);
sendCommand("USER " + remoteUser);
if (!(retValue == 331 || retValue == 230))
{
cleanup();
logger.Info(reply);
throw new IOException(reply.Substring(4));
}
if (retValue != 230)
{
if (debug)
Console.WriteLine("PASS xxx");
sendCommand("PASS " + remotePass);
if (!(retValue == 230 || retValue == 202))
{
cleanup();
logger.Error(reply);
throw new IOException(reply.Substring(4));
}
}
logined = true;
logger.Info("Connected to " + remoteHost);
Chdir(remotePath);
}
public void SetBinaryMode(Boolean mode)
{
if (mode)
{
sendCommand("TYPE I");
}
else
{
sendCommand("TYPE A");
}
if (retValue != 200)
{
throw new IOException(reply.Substring(4));
}
}
public void Download(string remFileName)
{
Download(remFileName, "", false);
}
public void Download(string remFileName, Boolean resume)
{
Download(remFileName, "", resume);
}
public void Download(string remFileName, string locFileName)
{
Download(remFileName, locFileName, false);
}
public void Download(string remFileName, string
locFileName, Boolean resume)
{
if (!logined)
{
Login();
}
SetBinaryMode(true);
Console.WriteLine("Downloading file " + remFileName + " from " + remoteHost + "/" + remotePath);
if (locFileName.Equals(""))
{
locFileName = remFileName;
}
if (!File.Exists(locFileName))
{
Stream st = File.Create(locFileName);
st.Close();
}
FileStream output = new
FileStream(locFileName, FileMode.Open);
Socket cSocket = createDataSocket();
long offset = 0;
if (resume)
{
offset = output.Length;
if (offset > 0)
{
sendCommand("REST " + offset);
if (retValue != 350)
{
//throw new IOException(reply.Substring(4));
//Some servers may not support resuming.
offset = 0;
}
}
if (offset > 0)
{
if (debug)
{
Console.WriteLine("seeking to " + offset);
}
long npos = output.Seek(offset, SeekOrigin.Begin);
Console.WriteLine("new pos=" + npos);
}
}
sendCommand("RETR " + remFileName);
if (!(retValue == 150 || retValue == 125))
{
throw new IOException(reply.Substring(4));
}
while (true)
{
bytes = cSocket.Receive(buffer, buffer.Length, 0);
output.Write(buffer, 0, bytes);
if (bytes <= 0)
{
break;
}
}
output.Close();
if (cSocket.Connected)
{
cSocket.Close();
}
Console.WriteLine("");
readReply();
if (!(retValue == 226 || retValue == 250))
{
throw new IOException(reply.Substring(4));
}
}
public void Upload(string fileName)
{
Upload(fileName, false);
}
public void Upload(string fileName, Boolean resume)
{
if (!logined)
{
Login();
}
Socket cSocket = createDataSocket();
long offset = 0;
if (resume)
{
try
{
SetBinaryMode(true);
offset = GetFileSize(fileName);
}
catch (Exception)
{
offset = 0;
}
}
if (offset > 0)
{
sendCommand("REST " + offset);
if (retValue != 350)
{
//throw new IOException(reply.Substring(4));
//Remote server may not support resuming.
offset = 0;
}
}
sendCommand("STOR " + Path.GetFileName(fileName));
if (!(retValue == 125 || retValue == 150))
{
throw new IOException(reply.Substring(4));
}
// open input stream to read source file
FileStream input = new
FileStream(fileName, FileMode.Open);
if (offset != 0)
{
if (debug)
{
Console.WriteLine("seeking to " + offset);
}
input.Seek(offset, SeekOrigin.Begin);
}
Console.WriteLine("Uploading file " + fileName + " to " + remotePath);
while ((bytes = input.Read(buffer, 0, buffer.Length)) > 0)
{
cSocket.Send(buffer, bytes, 0);
}
input.Close();
Console.WriteLine("");
if (cSocket.Connected)
{
cSocket.Close();
}
readReply();
if (!(retValue == 226 || retValue == 250))
{
throw new IOException(reply.Substring(4));
}
}
public void DeleteRemoteFile(string fileName)
{
if (!logined)
{
Login();
}
sendCommand("DELE " + fileName);
if (retValue != 250)
{
throw new IOException(reply.Substring(4));
}
}
public void RenameRemoteFile(string oldFileName, string newFileName)
{
if (!logined)
{
Login();
}
sendCommand("RNFR " + oldFileName);
if (retValue != 350)
{
throw new IOException(reply.Substring(4));
}
sendCommand("RNTO " + newFileName);
if (retValue != 250)
{
throw new IOException(reply.Substring(4));
}
}
public void Mkdir(string dirName)
{
if (!logined)
{
Login();
}
sendCommand("MKD " + dirName);
if (retValue != 250)
{
throw new IOException(reply.Substring(4));
}
}
public void Rmdir(string dirName)
{
if (!logined)
{
Login();
}
sendCommand("RMD " + dirName);
if (retValue != 250)
{
throw new IOException(reply.Substring(4));
}
}
public void Chdir(string dirName)
{
if (dirName.Equals("."))
{
return;
}
if (!logined)
{
Login();
}
sendCommand("CWD " + dirName);
if (retValue != 250)
{
throw new IOException(reply.Substring(4));
}
this.remotePath = dirName;
Console.WriteLine("Current directory is " + remotePath);
}
public void Close()
{
if (clientSocket != null)
{
sendCommand("QUIT");
}
cleanup();
Console.WriteLine("Closing...");
}
public bool Debug
{
set { debug = value; }
get { return debug; }
}
--------------------编程问答--------------------
--------------------编程问答-------------------- http://www.cnblogs.com/hzuit/articles/682744.html
public void readReply()
{
mes = "";
reply = readLine();
retValue = Int32.Parse(reply.Substring(0, 3));
}
private void cleanup()
{
if (clientSocket != null)
{
clientSocket.Close();
clientSocket = null;
}
logined = false;
}
private string readLine()
{
while (true)
{
bytes = clientSocket.Receive(buffer, buffer.Length, 0);
mes += ASCII.GetString(buffer, 0, bytes);
if (bytes < buffer.Length)
{
break;
}
}
char[] seperator = { '\n' };
string[] mess = mes.Split(seperator);
if (mes.Length > 2)
{
mes = mess[mess.Length - 2];
}
else
{
mes = mess[0];
}
if (!mes.Substring(3, 1).Equals(" "))
{
return readLine();
}
if (debug)
{
for (int k = 0; k < mess.Length - 1; k++)
{
Console.WriteLine(mess[k]);
}
}
return mes;
}
public void sendCommand(String command)
{
Byte[] cmdBytes =
Encoding.ASCII.GetBytes((command + "\r\n").ToCharArray());
clientSocket.Send(cmdBytes, cmdBytes.Length, 0);
readReply();
}
private Socket createDataSocket()
{
sendCommand("PASV");
if (retValue != 227)
{
throw new IOException(reply.Substring(4));
}
int index1 = reply.IndexOf('(');
int index2 = reply.IndexOf(')');
string ipData =
reply.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 reply: " +
reply);
}
if (ch == ',' || i + 1 == len)
{
try
{
parts[partCount++] = Int32.Parse(buf);
buf = "";
}
catch (Exception)
{
throw new IOException("Malformed PASV reply: " +
reply);
}
}
}
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(Dns.Resolve(ipAddress).AddressList[0], port);
try
{
s.Connect(ep);
}
catch (Exception)
{
throw new IOException("Can't connect to remote server");
}
return s;
}
public string ServerResponse
{
get { return reply; }
}
public int ResponseCode
{
get { return retValue; }
}
}
}
也许你能用得到 --------------------编程问答-------------------- 2楼，
提示：无法连接到远程服务器。
怎么解决 --------------------编程问答-------------------- 6楼，
你那个方法版本低，不能用 --------------------编程问答-------------------- 你得先知道远程服务器提供的是不是FTP服务，还是其他端口之类的。。。 --------------------编程问答-------------------- 不是FTP --------------------编程问答-------------------- winForm没搞过上传，学习了 --------------------编程问答-------------------- 不是FTP你就得改端口，改通讯握手的命令啊。。。 这些必须有，
啥也没有咋搞呢。。。 --------------------编程问答-------------------- 需要这么麻烦吗 映射可以直接操作吗 --------------------编程问答-------------------- 局域网内有权限就可以直接写，用不着socket。关键你说了个“远程” 貌似在公网上。
补充：.NET技术 , C#
