Apache Commons Ftp Client Download File Exclusive May 2026

Initialize the FTPClient , connect to the host, and provide credentials.

Use setFileType(FTP.BINARY_FILE_TYPE) for non-text files (images, PDFs, ZIPs) to prevent data corruption. apache commons ftp client download file

To successfully download a file, you must follow a specific sequence to ensure the connection and data transfer are stable: Initialize the FTPClient , connect to the host,

import org.apache.commons.net.ftp.FTP; import org.apache.commons.net.ftp.FTPClient; import java.io.*; public class FTPDownloadExample { public static void main(String[] args) { String server = "://example.com"; int port = 21; String user = "username"; String pass = "password"; FTPClient ftpClient = new FTPClient(); try { ftpClient.connect(server, port); ftpClient.login(user, pass); // Critical settings for modern FTP connections ftpClient.enterLocalPassiveMode(); ftpClient.setFileType(FTP.BINARY_FILE_TYPE); String remoteFilePath = "/remote/path/data.zip"; File localFile = new File("C:/Downloads/data.zip"); try (OutputStream outputStream = new BufferedOutputStream(new FileOutputStream(localFile))) { boolean success = ftpClient.retrieveFile(remoteFilePath, outputStream); if (success) { System.out.println("File downloaded successfully!"); } } } catch (IOException ex) { ex.printStackTrace(); } finally { try { if (ftpClient.isConnected()) { ftpClient.logout(); ftpClient.disconnect(); } } catch (IOException ex) { ex.printStackTrace(); } } } } Use code with caution. You can use listFiles() to get an array

You can use listFiles() to get an array of FTPFile objects and loop through them to download an entire directory.

Before writing code, add the commons-net dependency to your project. If you are using Maven, add the following to your pom.xml :