CODEWITHSUNDEEP
javaftpapache-commonsapache-commons-net
Kaostias
Kaostias

Reputation: 321

How can i upload a file into a ftp server?

SOLVED

I'm making a desktop aplication that must be in touch with a ftp server, the files that will upload are images. I'm trying it but I can't upload despite being connected, the problem is when I want to upload the file, the method doesn't work and returns false. the code is the following:

public boolean subeFTP(String archivoLocal, String archivoServer){
    boolean resultado=false;

    FTPClient ClienteFTP=new FTPClient();

    //Se toma el nombre del archivo local
    String aux = archivoLocal;
    aux = aux.substring(aux.lastIndexOf("\\")+1);

    try {
        //Establece el timeout del servidor en 5 minutos para evitar desconexiones
        ClienteFTP.setControlKeepAliveTimeout(300);

        //Conexión al servidor
        ClienteFTP.connect(prop_servidor, prop_puertoServidor);

        //Pone el ftp en modo pasivo para recibir un archivo, permanecerá así mientras no se cambie
        ClienteFTP.enterLocalPassiveMode(); 

        //Login
        resultado=ClienteFTP.login(prop_usuarioFtp, prop_passFtp);


        //Comprobación de la conexión
        int reply = ClienteFTP.getReplyCode(); 
        if (!FTPReply.isPositiveCompletion(reply)) {
            ClienteFTP.logout();
            ClienteFTP.disconnect();
               throw new Exception("El servidor FTP ha rechazado la conexión, error:\n" + ClienteFTP.getReplyString()); 
        }


        //Se cambia el directorio al requerido
        resultado = resultado && ClienteFTP.changeWorkingDirectory(prop_directorioServidor);


        //Tipo de archivo y envío
        resultado = resultado && ClienteFTP.setFileType(FTP.BINARY_FILE_TYPE);
        //resultado = resultado && ClienteFTP.setFileTransferMode(FTP.BLOCK_TRANSFER_MODE);


        BufferedInputStream buffIn=new BufferedInputStream(new FileInputStream(archivoLocal));
        resultado = resultado && ClienteFTP.storeFile(archivoServer+aux, buffIn);
        System.out.println(ClienteFTP.getReplyString());

        buffIn.close();
        ClienteFTP.logout();
        ClienteFTP.disconnect();

        resultado=true;

    } catch (SocketException e) {
        System.out.println("Fallo 1");
        e.printStackTrace();
        resultado=false;

    } catch (IOException e) {
        System.out.println("Fallo 2");
        resultado=false;
        e.printStackTrace();
    } catch (Exception e) {
        resultado=false;
        e.printStackTrace();
    }

    return resultado ;
}

Upvotes: 2

Views: 1929

Answers (1)

Sagar Gandhi
Sagar Gandhi

Reputation: 965

You should enter in local passive mode. use following methd ftp.enterLocalPassiveMode()

According to documentation

Set the current data connection mode to PASSIVE_LOCAL_DATA_CONNECTION_MODE . Use this method only for data transfers between the client and server. This method causes a PASV (or EPSV) command to be issued to the server before the opening of every data connection, telling the server to open a data port to which the client will connect to conduct data transfers. The FTPClient will stay in PASSIVE_LOCAL_DATA_CONNECTION_MODE until the mode is changed by calling some other method such as enterLocalActiveMode()

I would also suggest you to call ftpClient.setControlKeepAliveTimeout(timeoutInMilliseconds);

Set the time to wait between sending control connection keepalive messages when processing file upload or download.

Upvotes: 3

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