上传文件到ftp服务器整理：

　　声明：以下代码为vb.net代码，使用Visual Studio 2008开发，所有代码均通过测试，可以直接使用。欢迎转载，请注明出处，欢迎拍砖。

web.config 文件配置， 将用户名，密码和ftp服务器的地址存放到web.config文件：

文件上传步骤：

　　1.读取文件到一个FileStream

　　2.设置ftp服务器访问信息，主要是ftp服务器地址，访问ftp服务器的用户名和密码，访问类型，等待时间等待。

　　3.在ftp服务器中创建一个空的文件

　　3.将源文件读取到byte()数组中

　　4.将byte()数组中存放的数据写入到另外一个Stream, 这个stream是我们刚在ftp服务器上创建的空文件

　　5.完成写入

以下是文件上传代码：

'''
 ''' upload txt file to specified destination. '''
 '''
          Private Sub uploadFileByFTP() 'is uploaded         Dim isUploaded As Boolean = False 'File path         Dim fi As New FileInfo(Server.MapPath(".").ToString & "\TestFileFolder\" & strFileName) 'Create a file in the ftp file server         Dim reqObj As System.Net.FtpWebRequest         reqObj = DirectCast(System.Net.WebRequest.Create(ConfigurationManager.AppSettings("CompleteFTPPath") & fi.Name), System.Net.FtpWebRequest) 'Configure the request methods as uploadfile         With reqObj             .Credentials = New Net.NetworkCredential(ConfigurationManager.AppSettings("UserName"), ConfigurationManager.AppSettings("PassWord"))             .Method = WebRequestMethods.Ftp.UploadFile             .UseBinary = True             .ContentLength = fi.Length             .Timeout = 10 * 1000 End With Try Using fsSource As FileStream = New FileStream(Server.MapPath(".").ToString & "\NameplateFile\" & strFileName, FileMode.Open, FileAccess.Read) ' Read the source file into a byte array.                 Dim bytes() As Byte = New Byte((fsSource.Length) - 1) {} ' Get the length of the source file                 Dim numBytesToRead As Integer = CType(fsSource.Length, Integer) Dim numBytesRead As Integer = 0 While (numBytesToRead > 0) ' Read may return anything from 0 to numBytesToRead.                     Dim n As Integer = fsSource.Read(bytes, numBytesRead, _                         numBytesToRead) ' Break when the end of the file is reached.                     If (n = 0) Then Exit While End If                     numBytesRead = (numBytesRead + n)                     numBytesToRead = (numBytesToRead - n) End While                 numBytesToRead = bytes.Length ' Write the byte array to the ftp file server                 Using fsNew As System.IO.Stream = reqObj.GetRequestStream()                     fsNew.Write(bytes, 0, numBytesToRead)                     isUploaded = True End Using End Using 　　　　　　' upload successfully 　　　　　　 File.Delete(Server.MapPath(".").ToString & "\TestFileFolder\" & strFileName) If isUploaded = True Then                 lblMsg.Text = "File uploaded successfully!" Else                 lblMsg.Text = "" End If Catch ex As Exception Throw ex End Try End Sub

以上是一个简单的上传文件的代码，仅供参考。

相关链接：

create a new FTP site