FTP文件传输C＃ [英] FTP File Transfer C#
问题描述
我需要通过FTP将文件从一台服务器传输到另一台服务器。我已经使用了下面的代码。
在很多文件中，这只是部分传输单个文件。例如。我有一个56KB的源文件。在运行下面的代码后，源文件将减少到0kb，并将0KB文件传输到目标文件，而不是56 KB的文件大小。
我构建了将所有文件从源文件传输到目标文件的代码。但是，如上所述，在传输单个0KB文件后，它并没有取得进一步的进展。
请帮助我。
static void Main（string [] args）
{
字符串DISCH_DEST = System.Configuration.ConfigurationManager.AppSettings [DISCH_DEST ]; //包含源服务器中的源文件夹
string FTP_DISCH = System.Configuration.ConfigurationManager.AppSettings [FTP_DISCH]; // FTP路径（ftp：// *********** /）
字符串USERNAME = System.Configuration.ConfigurationManager.AppSettings [USERNAME];
string PASSWORD = System.Configuration.ConfigurationManager.AppSettings [PASSWORD];
DirectoryInfo DISCH_Directory =新的DirectoryInfo（DISCH_DEST）;
FileInfo [] DISCH_Files = DISCH_Directory.GetFiles（*。*）;
foreach（DISCH_Files中的var f）//从BULK FOLDER（IN）中获取文件
{
字符串FN = Path.GetFileName（f.FullName）;
int bufferSize = 1024;
FtpWebRequest REQ =（FtpWebRequest）WebRequest.Create（new Uri（String.Format（{0} / {1}，FTP_DISCH，FN）））;
REQ.Credentials = new NetworkCredential（USERNAME，PASSWORD）;
REQ.Method = WebRequestMethods.Ftp.UploadFile;
流FTP_Stream = REQ.GetRequestStream（）;
FileStream LOCAL_FileStream = new FileStream（f.FullName，FileMode.Create）;
byte [] bytebuffer = new byte [bufferSize];
int bytesSent = FTP_Stream.Read（bytebuffer，0，bufferSize）;
尝试
{
while（bytesSent！= 0）
{
LOCAL_FileStream.Write（bytebuffer，0，bytesSent）;
bytesSent = FTP_Stream.Read（bytebuffer，0，bytesSent）;
catch（Exception ex）{Console.WriteLine（ex.ToString（））; }
LOCAL_FileStream.Close（）;
FTP_Stream.Close（）;
REQ = null;
}
}
在许多文件中，这只是部分传输单个文件。例如。我有一个56KB的源文件。在运行下面的代码后，源文件将减少到0kb，并将0KB文件传输到目标文件，而不是56 KB的文件大小。
我构建了将所有文件从源文件传输到目标文件的代码。但是在传输上面的单个0KB文件后，它并没有进一步发展。
请帮助我。
您的代码：
流FTP_Stream = REQ.GetRequestStream（）;
FileStream LOCAL_FileStream = new FileStream（f.FullName，FileMode.Create）;
byte [] bytebuffer = new byte [bufferSize];
int bytesSent = FTP_Stream.Read（bytebuffer，0，bufferSize）;
您正在创建一个新的流，然后从ftp服务器读取它以放入它。 。
如果您发送的文件不是FileMode.Create，因为它会生成一个新文件，但是FileMode.Open。
你也一定会从LOCAL_FileStream中读取数据并写入FTP_STream ....
I need to transfer files on FTP from one server to other. I have used the below code.
Out of many files this is transferring only a single file partially. For ex. I have a source file of 56KB. After running the below code, the source file is reduced to 0kb and a 0KB file was transferred to the destination instead of 56 KB file size.
I built code to transfer all the files from source to destination. But its not progressing further after transferring a single 0KB file as above.
Please help me.
static void Main(string[] args)
{
string DISCH_DEST = System.Configuration.ConfigurationManager.AppSettings["DISCH_DEST"]; //Contains the source folder in source server
string FTP_DISCH = System.Configuration.ConfigurationManager.AppSettings["FTP_DISCH"]; // FTP path (ftp://***********/)
string USERNAME = System.Configuration.ConfigurationManager.AppSettings["USERNAME"];
string PASSWORD = System.Configuration.ConfigurationManager.AppSettings["PASSWORD"];
DirectoryInfo DISCH_Directory = new DirectoryInfo(DISCH_DEST);
FileInfo[] DISCH_Files = DISCH_Directory.GetFiles("*.*");
foreach (var f in DISCH_Files) //FETCHING FILES FROM THE BULK FOLDER (IN)
{
string FN = Path.GetFileName(f.FullName);
int bufferSize = 1024;
FtpWebRequest REQ = (FtpWebRequest)WebRequest.Create(new Uri(String.Format("{0}/{1}",FTP_DISCH,FN)));
REQ.Credentials = new NetworkCredential(USERNAME, PASSWORD);
REQ.Method = WebRequestMethods.Ftp.UploadFile;
Stream FTP_Stream = REQ.GetRequestStream();
FileStream LOCAL_FileStream = new FileStream(f.FullName, FileMode.Create);
byte[] bytebuffer = new byte[bufferSize];
int bytesSent = FTP_Stream.Read(bytebuffer, 0, bufferSize);
try
{
while (bytesSent != 0)
{
LOCAL_FileStream.Write(bytebuffer, 0, bytesSent);
bytesSent = FTP_Stream.Read(bytebuffer, 0, bytesSent);
}
}
catch (Exception ex) { Console.WriteLine(ex.ToString()); }
LOCAL_FileStream.Close();
FTP_Stream.Close();
REQ = null;
}
}
Out of many files this is transferring only a single file partially. For ex. I have a source file of 56KB. After running the below code, the source file is reduced to 0kb and a 0KB file was transferred to the destination instead of 56 KB file size.
I built code to transfer all the files from source to destination. But its not progressing further after transferring a single 0KB file as above.
Please help me.
Right now I dont see why your code would send any files.
Your code:
Stream FTP_Stream = REQ.GetRequestStream();
FileStream LOCAL_FileStream = new FileStream(f.FullName, FileMode.Create);
byte[] bytebuffer = new byte[bufferSize];
int bytesSent = FTP_Stream.Read(bytebuffer, 0, bufferSize);
You're making a new stream, and then reading from the ftp server to put in it...
If you were sending a file it wouldnt be FileMode.Create, as that makes a new file, but FileMode.Open.
You also surely would read from LOCAL_FileStream and write to FTP_STream....
这篇关于FTP文件传输C＃的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
