Read a JSON hosted in an FTP protocol URL

From an external App: You've probably wondered if there was a way to transfer files between your server and your mobile device on the road, where there is not a computer available. Well, this will definitely solve that. You will learn how to transfer files between an FTP server and your Android device with a free application called: AndFTP.

Difficulty level: Easy

Now it will try a connection to the server. If the connection is successful, you will now see the files on your server, as well as the files on your mobile device.

tutorial in English

If you like to do it from the code:

Download the necessary .jar files. First you need to follow the JAR file:

Download here:

download

Download the latest jar file and add it to the libs folder of your Android project.

Step 2 Class MyFTPClientFunctions Create new MyFTPClientFunctions classes in your project. Now add some FTP functions in the newly created class.

FTPClient público mFTPClient = null; // Agrega la parte superior de la clase

Now add a method to connect the FTP server. (Method to connect to the FTP server)

public boolean ftpConnect(String host, String username, String password, int port) {
    try {
        mFTPClient = new FTPClient();
        // connecting to the host
        mFTPClient.connect(host, port);
        // now check the reply code, if positive mean connection success
        if (FTPReply.isPositiveCompletion(mFTPClient.getReplyCode())) {
            // login using username & password
            boolean status = mFTPClient.login(username, password);
           /*
               * Set File Transfer Mode
               * To avoid corruption issue you must specified a correct
               * transfer mode, such as ASCII_FILE_TYPE, BINARY_FILE_TYPE,
               * EBCDIC_FILE_TYPE .etc. Here, I use BINARY_FILE_TYPE for
               * transferring text, image, and compressed files.
            */
            mFTPClient.setFileType(FTP.BINARY_FILE_TYPE);
            mFTPClient.enterLocalPassiveMode();
            return status;
        }
    } catch (Exception e) {
        Log.d(TAG, "Error: could not connect to host " + host);
    }
    return false;
}

Now add a method to disconnect the FTP server. (Method to disconnect from the FTP server)

public boolean ftpDisconnect() {
    try {
        mFTPClient.logout();
        mFTPClient.disconnect();
        return true;
    } catch (Exception e) {
        Log.d(TAG, "Error occurred while disconnecting from ftp server.");
    }
return false;
}

Now add the method to upload files to the FTP server.

public boolean ftpUpload(String srcFilePath, String desFileName, String desDirectory, Context context) {
    boolean status = false;
    try {
        FileInputStream srcFileStream = new FileInputStream(srcFilePath);
        // change working directory to the destination directory
        // if (ftpChangeDirectory(desDirectory)) {
            status = mFTPClient.storeFile(desFileName, srcFileStream);
        // }
        srcFileStream.close();
        return status;
    } catch (Exception e) {
        e.printStackTrace();
        Log.d(TAG, "upload failed: " + e);
    }
return status;
}

connection to your application in Android Studio to an FTP server?

[tutorial from code] [3]

How to start FTP on Android