create or replace java source named "FTPAction" as
import java.sql.Blob;
import java.sql.SQLException;
import java.io.IOException;

public class FTPAction {

  public static void toFile (
      String hostname
    , String username
    , String password
    , Blob blob
    , String fileName
  )
    throws IOException, SQLException {
    FTPSession sess = null;
    try {
      sess = new FTPSession(hostname, username, password);
      byte[] bytes = blob.getBytes(1, (int)blob.length());
      sess.put(fileName, bytes, true);
    } finally {
      if (sess != null) {sess.close();}
    }
  }

  public static void copyFile(
    String hostname
    , String username
    , String password
    , String fromFilename
    , String toFilename
  )
    throws IOException {
    FTPSession sess = null;
    try {
      sess = new FTPSession(hostname, username, password);
      byte[] bytes = sess.get(fromFilename, true);
      sess.put(toFilename, bytes, true);
    } finally {
      if (sess != null) {sess.close();}
    }
  }
}
/

create or replace package ftpaction as
procedure blob2file (
    p_hostname varchar2
  , p_username varchar2
  , p_password varchar2
  , p_blob     blob
  , p_filename varchar2
) as
  language java name 
  'FTPAction.toFile(java.lang.String, java.lang.String, java.lang.String, java.sql.Blob, java.lang.String)';

procedure copyfile (
    p_hostname      varchar2
  , p_username      varchar2
  , p_password      varchar2
  , p_from_filename varchar2
  , p_to_filename   varchar2
) as
  language java name 
  'FTPAction.copyFile(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String)';
end;
/

exec dbms_java.grant_permission( user, 'SYS:java.net.SocketPermission', 'HOST_NAME', 'connect,resolve')

declare
  v_blob blob;
  v_text varchar2(3) := 'XXX';
  v_raw long raw;
begin
  dbms_lob.createTemporary(v_blob, false, dbms_lob.SESSION);
  v_raw := utl_raw.cast_to_raw(v_text);
  dbms_lob.writeAppend(v_blob, utl_raw.length(v_raw), v_raw);
  ftpaction.blob2file (
      p_hostname => 'host_name'
    , p_username => 'user'
    , p_password => 'password'
    , p_blob     => v_blob
    , p_filename => '/pub/xxx.blob'
  );
end;
/

create or replace and compile java source named ftpaction as

create or replace and compile java source named "FTPAction" as

begin
  ftpaction.copyfile (
      p_hostname => '192.168.0.49'
    , p_username => '26287'
    , p_password => '26287'
    ,p_from_filename => 'c:/post/26287/send/1.jpg'
    ,p_to_filename => 'c:\post\26287\recv\1.jpg'
  );
end;
/

ORA-29532: Java call terminated by uncaught Java exception: java.io.IOException: 421 Connection Timed-Out !
ORA-06512: at "UZB.FTPACTION", line 0
ORA-06512: at line 9

ftp 192.168.0.49

package untitled2;

import java.sql.Blob;
import java.sql.SQLException;
import java.io.IOException;

public class FTPAction {

  public static void toFile (
      String hostname
    , String username
    , String password
    , Blob blob
    , String fileName
  )
    throws IOException, SQLException {
    FTPSession sess = null;
    try {
      sess = new FTPSession(hostname, username, password);
      byte[] bytes = blob.getBytes(1, (int)blob.length());
      sess.put(fileName, bytes, true);
    } finally {
      if (sess != null) {sess.close();}
    }
  }

  public static void copyFile(
    String hostname
    , String username
    , String password
    , String fromFilename
    , String toFilename
  )
    throws IOException {
    FTPSession sess = null;
    try {
      sess = new FTPSession(hostname, username, password);
      byte[] bytes = sess.get(fromFilename, true);
      sess.put(toFilename, bytes, true);
    } finally {
      if (sess != null) {sess.close();}
    }
  }

  public static void main(String[] args) {
    try
    {
      copyFile("192.168.0.129","26287","26287","c:/post/26287/send/1.jpg","c:\\post\\26287\\recv\\1.jpg");
    }
    catch(Exception e)
    {}
  }
  
}