ftp fileupload错误 [英] ftp fileupload error

问题描述

我使用下面的函数上传文件从我的远程位置..

但我得到错误："

System.Net.WebException：数据连接是由一个不同于FTP连接地址的地址建立的。

在System.Net.FtpWebRequest.SyncRequestCallback（Object obj）

at System.Net.FtpWebRequest.ReallCallback（Object obj）

at System.Net.CommandStream.Abort（Exception e）

在System.Net.FtpWebRequest.FinishRequestStage（RequestStage阶段）

在System.Net.FtpWebRequest.GetRequestStream（）

"
所以请参阅功能和帮助我公共

"
所以请查看功能并帮助我 public

bool 上传（ FileInfo fi， 字符串 targetFilename）

{

<字体大小= 2>

//将指定的文件复制到目标文件：目标文件可以是完整路径或j ust文件名（使用当前目录）

// 1。检查目标

字符串 target;

if （targetFilename.Trim（）== "" ）

{

//空白目标：使用源文件名&当前目录

target =

此 。CurrentDirectory + fi.Name;

}

else if （targetFilename.Contains（ " /" ））

{

//如果包含/视为完整路径

目标= AdjustDir（targetFilename）;

}

else

{

//否则仅视为文件名，使用当前目录

target = CurrentDirectory + targetFilename;

}

string URI =主机名+目标;

//执行复制

System.Net。

FtpWebRequest ftp = GetRequest（URI）;

//设置上传二进制文件的请求

ftp.Method = System.Net。

WebRequestMethods 。 Ftp 。UploadFile; < font size = 2>

ftp.UseBinary =

true ;

ftp.UsePassive =

false ;

//通知预期大小的FTP

ftp.ContentLength = fi.Length;

< font size = 2>

//创建要存储的字节数组：确保至少1个字节！

const int BufferSize = 2048;

byte [] content = 新 byte [BufferSize - 1 + 1] ;

int dataRead;

// WebResponse response = ftp。 GetResponse（）。status;

//打开文件进行阅读

使用 （ FileStream fs = fi.OpenRead（））

{

尝试

{

//打开发送请求

Stream rs = ftp.GetRequestStream（）;

做

{

dataRead = fs.Read（content ，0，BufferSize）;

rs.Write（content，0，dataRead）;

}

while （！（dataRead< BufferSize））;

rs.Close（）;

}

catch （ WebException ex）

{

< span style ="font-size：x-small; color：＃008000"> // String status =（（FtpWebResponse）e.Response）.StatusDescription;

// FtpWebResponse response =（FtpWebResponse）ftp.GetResponse（ ）;

字符串 错误;

error = ex.ToString（）;

return false ;

}

最后

{

//确保文件关闭

fs.Close（）;

}

}

ftp =

null ;

return true ;

}

解决方案

我打赌这有什么关系处于Active或Passive连接以及后面的安全性。这有帮助吗？
http：// social.msdn.microsoft.com/forums/en-US/netfxnetcom/thread/4f634a97-bef2-4273-a49c-a6f71126772e

 

I m Using The Below Function To Upload File From My Remote Location..

But i m Getting Error :"

System.Net.WebException: The data connection was made from an address that is different than the address to which the FTP connection was made.

at System.Net.FtpWebRequest.SyncRequestCallback(Object obj)

at System.Net.FtpWebRequest.RequestCallback(Object obj)

at System.Net.CommandStream.Abort(Exception e)

at System.Net.FtpWebRequest.FinishRequestStage(RequestStage stage)

at System.Net.FtpWebRequest.GetRequestStream()

 

"
So Please See The Function and Help me
public

"
So Please See The Function and Help me
public

 

bool Upload(FileInfo fi, string targetFilename)

{

 

//copy the file specified to target file: target file can be full path or just filename (uses current dir)

 

//1. check target

 

string target;

 

if (targetFilename.Trim() == "")

{

 

//Blank target: use source filename & current dir

target =

this.CurrentDirectory + fi.Name;

}

 

else if (targetFilename.Contains("/"))

{

 

//If contains / treat as a full path

target = AdjustDir(targetFilename);

}

 

else

{

 

//otherwise treat as filename only, use current directory

target = CurrentDirectory + targetFilename;

}

 

string URI = Hostname + target;

 

//perform copy

System.Net.

FtpWebRequest ftp = GetRequest(URI);

 

//Set request to upload a file in binary

ftp.Method = System.Net.

WebRequestMethods.Ftp.UploadFile;

ftp.UseBinary =

true;

ftp.UsePassive =

false;

 

//Notify FTP of the expected size

ftp.ContentLength = fi.Length;

 

//create byte array to store: ensure at least 1 byte!

 

const int BufferSize = 2048;

 

byte[] content = new byte[BufferSize - 1 + 1];

 

int dataRead;

 

 

//WebResponse response = ftp.GetResponse().status;

 

 

//open file for reading

 

using (FileStream fs = fi.OpenRead())

{

 

try

{

 

//open request to send

 

Stream rs = ftp.GetRequestStream();

 

 

do

{

dataRead = fs.Read(content, 0, BufferSize);

rs.Write(content, 0, dataRead);

}

while (!(dataRead < BufferSize));

rs.Close();

 

 

}

 

catch (WebException ex)

{

 

//String status = ((FtpWebResponse)e.Response).StatusDescription;

 

// FtpWebResponse response = (FtpWebResponse)ftp.GetResponse();

 

string error;

error = ex.ToString();

 

return false;

}

 

finally

{

 

//ensure file closed

fs.Close();

}

}

 

ftp =

null;

 

return true;

}

解决方案

I bet this has something to do with the connection being Active or Passive and the security behind that.  does this help?
http://social.msdn.microsoft.com/forums/en-US/netfxnetcom/thread/4f634a97-bef2-4273-a49c-a6f71126772e

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