Thread: How to Download a file via FTP

With this simple code you can download a file to your computer via FTP.

You will need to amend the connection String if you wish to connect to a directory other than /public_html/

import java.io.*;
import java.net.URL;
import java.net.URLConnection;
 
public class JFTP {
 
    /**
     * JavaProgrammingForums.com
     */
 
    public static String server = "ftp.server.com";
    public static String userName = "username";
    public static String password = "password";
    public static String fileName = "index.html";
 
    public static void main(String[] args) throws Exception{
 
    System.out.println("Connecting to FTP server...");    
 
    //Connection String
    URL url = new URL("ftp://"+userName+":"+password+"@"+server+"/public_html/"+fileName+";type=i");
    //URL url = new URL("ftp://"+userName+":"+password+"@"+server+"/"+fileName+";type=i");
    URLConnection con = url.openConnection();
 
    BufferedInputStream in = new BufferedInputStream(con.getInputStream());
 
    System.out.println("Downloading file.");
 
    //Downloads the selected file to the C drive
    FileOutputStream out = new FileOutputStream("C:\\" + fileName);
 
    int i = 0;
    byte[] bytesIn = new byte[1024];
    while ((i = in.read(bytesIn)) >= 0) {
        out.write(bytesIn, 0, i);
    }
    out.close();
    in.close();
 
    System.out.println("File downloaded.");
 
    }
 
}