.NET使用fileupload通过FTP上传文件

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public class FtpServerInfo
{
//FTP登录用户名
public string UserName { get; set; }
//FTP登录密码
public string Password { get; set; }

//FTP地址（例ftp://127.0.0.1）
public string ServerUrl { get; set; }

public FtpServerInfo(string serverUrl, string username, string password) {
ServerUrl = serverUrl;
UserName = username;
Password = password;
}
}

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public class FtpServer
{
public static FtpServerInfo ServerInfo { get; set; }
public FtpServer(FtpServerInfo _ServerInfo)
{
ServerInfo = _ServerInfo;
}
public FtpServer()
{
}
/// <summary>
/// 上传
/// </summary>
/// <param name="fldPath">fldpath值</param>
/// <param name="serverFile">保存相对路径</param>
/// <param name="message">返回信息</param>
/// <returns></returns>
public static bool UploadFile(FileUpload fldPath, string serverFile, out string message)//string localFile
{
bool result = true;
message = "";
try
{
string path = serverFile.Substring(0, serverFile.LastIndexOf("/"));
string[] paths = path.Split('/');
string cPath = "";
foreach (string p in paths)
{
cPath += p + "/";
CreateDirectory(cPath);
}

//FileInfo localFileInfo = new FileInfo(localFile);
string ftpFileUrl = ServerInfo.ServerUrl + serverFile + Path.GetFileName(fldPath.PostedFile.FileName);
FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(ftpFileUrl);//在ftp下创建跟上传文件一样名字的文件
request.KeepAlive = false;
request.UseBinary = true;
request.ContentLength = fldPath.PostedFile.ContentLength;
//request.UsePassive = true;
ICredentials credential = new NetworkCredential(ServerInfo.UserName, ServerInfo.Password);
request.Credentials = credential;
request.Method = WebRequestMethods.Ftp.UploadFile;
Stream localFileStream = fldPath.PostedFile.InputStream;//HttpPostFile
Stream ftpFileStream = request.GetRequestStream();
try
{
int BufferSize = 256 * 1024;
Byte[] buffer = new Byte[BufferSize];
while (true)
{
int byteCount = localFileStream.Read(buffer, 0, BufferSize);
ftpFileStream.Write(buffer, 0, byteCount);
if (byteCount == 0)
{
break;
}
}
}
catch (ThreadAbortException ex)
{
message = ex.Message;
//ftpFileStream.Close();
//localFileStream.Close();
//request.Abort();
result = false;
}
ftpFileStream.Close();
localFileStream.Close();
//FtpWebResponse response = (FtpWebResponse)request.GetResponse();
//response.Close();
}
catch (WebException exc)
{
message = exc.Message;
result = false;

}
catch (ArgumentException exc)
{
message = exc.Message;
result = false;
}
return result;
}
/// <summary>
/// 创建文件夹
/// </summary>
/// <param name="serverPath">文件夹存放的相对路径</param>
/// <returns></returns>
public static bool CreateDirectory(string serverPath)
{
try
{
FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(ServerInfo.ServerUrl + serverPath);
ICredentials credential = new NetworkCredential(ServerInfo.UserName, ServerInfo.Password);
request.Credentials = credential;
request.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
response.Close();
}
catch (Exception ex)
{
//LogHelper.WriteErrLog(ex);
return false;
}
return true;
}
/// <summary>
/// 删除文件夹
/// </summary>
/// <param name="serverPath">文件夹存放的相对路径</param>
/// <returns></returns>
public static bool RemoveDirectory(string serverPath)
{
bool result = true;
try
{
string ftpFileUrl = ServerInfo.ServerUrl + serverPath;
FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(ftpFileUrl);
ICredentials credential = new NetworkCredential(ServerInfo.UserName, ServerInfo.Password);
request.Credentials = credential;
request.Method = WebRequestMethods.Ftp.RemoveDirectory;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
result = response.StatusCode == FtpStatusCode.FileActionOK;

response.Close();
}
catch (Exception ex)
{
//LogHelper.WriteErrLog(ex);
return false;
}
return result;
}
/// <summary>
/// 删除文件
/// </summary>
/// <param name="serverPath">文件存放的相对路径</param>
/// <returns></returns>
public static bool RemoveFile(string serverPath)
{
bool result = true;
try
{
string ftpFileUrl = ServerInfo.ServerUrl + serverPath;
FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(ftpFileUrl);
ICredentials credential = new NetworkCredential(ServerInfo.UserName, ServerInfo.Password);
request.Credentials = credential;
request.Method = WebRequestMethods.Ftp.DeleteFile;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
result = response.StatusCode == FtpStatusCode.FileActionOK;
response.Close();
}
catch (Exception ex)
{
//LogHelper.WriteErrLog(ex);
return false;
}
return result;
}
}

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