copy file to FTP server

[gozdmei]

Hi there, I need to copy a file from my computer (windows 2000) to an FTP site. I need to find a java code to perform this. If you can help me, I will be pleased. Thank you.

 

[hologram]

Check the javaworld article :

http://www.javaworld.com/javaworld/jw-04-2003/jw-0404-ftp.html

Check this thread (user "offhegoes" seems to have solved this problem) :
thread269-607996
and
thread269-611384

 

[frag]

Hi!

Try this and read the java API to understand what the code does. You will need some smarter exception handling. ;-)

import java.net.*;
import java.io.*;

public class FTPTest
{


 public static void main(String [] arstring) 
 {
  String user      = "myFTPuser";
  String password  = "myFTPpassword";
  String host      = "myFTPhost";
  String file      = "myFTPfile";
  String userInfo  = user + ":" + password;
  String urlString = "ftp://" + userInfo + "@" + host + "/" + file + ";type=i";
  int bufferSize = 1024;
  try{
   URL url = new URL(urlString);
   URLConnection urlc = url.openConnection();
   OutputStream os = urlc.getOutputStream();
   BufferedOutputStream ost = new BufferedOutputStream(os, bufferSize);
   FileInputStream ist = new FileInputStream(file);
   byte[] buffer = new byte[bufferSize];
   int nBytes;
   while((nBytes = ist.read(buffer)) != -1)
   {
  	ost.write(buffer, 0, nBytes);
  	ost.flush();
   }
  }
  catch(Exception e){
  	e.printStackTrace();
  }
 }
}

Cheers

frag


patrick.metz@epost.de

 

[frag]

sorry, there is something "wrong" in my code.
use type=i if it is a binary file (an image for example) and use type=a if you want to transfer an ascii file (text file).

Cheers

frag

patrick.metz@epost.de

 

[hologram]

There is some undocumented stuff in the "sun.net" package:
I tried a bit, but didn't get it to work. Maybe you can if you change server, user and passwd.
(ps : the microsoft site does not need a user/password, but I do't know how to login anonymous)

import sun.net.ftp.*;
import sun.net.TelnetInputStream;

public class FtpExample {

  public FtpExample() {
  }

  private void doIt() {
    String server = "ftp.microsoft.com";
    String user = "me";
    String passwd = "1234";
    try {
      FtpClient client = new FtpClient();
      client.openServer(server);
      client.login(user, passwd);
      client.binary();
      client.cd("MISC");
      TelnetInputStream in = client.get("ReadMe1.txt");//now do whatever u want with this inputstream
      System.out.println("ReadMe1 = " + in.toString());
      in.close();
      client.closeServer();
    } catch (java.io.IOException e) {
    }

  }

  public static void main(String[] args) {
    FtpExample example = new FtpExample();
    example.doIt();
  }

}

 

[gozdmei]

I tried Frag's code but I got the following exception:

"protocol doesn't support output"

I don't have any permission or authenticity problems because when I open the ftp site with my browser with the same user I used in my code , I can change a file on the server or put a new file to the server.

 

[gozdmei]

Hologram, I tried your code and it works!!! I tried TelnetOutputStream too...

try {
ftpClient client = new ftpClient();
client.openServer(server);
client.login(user, passwd);
client.binary();
client.cd("MISC"
File file_in= new File("c:\\readme.txt"
FileInputStream is= new FileInputStream(file_in);
byte[] bytes = new byte[1024];
int c;
int total_bytes=0;
while((c=is.read(bytes)) !=-1)
{
total_bytes +=c;
is.read(bytes,0,c);
}

TelnetOutputStream out=client.put(readme.txt);
out.write(total_bytes);
out.flush();
out.close();
client.closeServer();
}


Thank you very much fellas, I really appreciate. Now I will work on frag's code.

 

[frag]

my code worked in my environment... don't know what could be wrong with it, sorry.

patrick.metz@epost.de