With this example we are going to demonstrate how to establish a connection with an FTP Server. We are using the org.apache.commons.net.ftp.FTPClient Class that encapsulates all the functionality necessary to store and retrieve files from an FTP server. In short, to establish a connection with an FTP Server you should:
- Create a new
FTPClient. - Use
connect()API method to open a connection to the FTP Server. - Use the
login(String username, String password)API method to login to the FTP server using the provided username and password. It returns true if it is successfully completed and false otherwise. - Use
logout()method to logout of the FTP server by sending the QUIT command anddisconnect()method to close the connection to the FTP server.
Let’s take a look at the code snippet that follows:
package com.javacodegeeks.snippets.core;
import org.apache.commons.net.ftp.FTPClient;
import java.io.IOException;
public class FtpConnection {
public static void main(String[] args) {
FTPClient client = new FTPClient();
try {
client.connect("ftp.javacodegeeks.com");
// Try to login and return the respective boolean value
boolean login = client.login("username", "password");
// If login is true notify user
if (login) {
System.out.println("Connection established...");
// Try to logout and return the respective boolean value
boolean logout = client.logout();
// If logout is true notify user
if (logout) {
System.out.println("Connection close...");
}
// Notify user for failure
} else {
System.out.println("Connection fail...");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
// close connection
client.disconnect();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
Output:
Connection established...
Connection close...
This was an example of how to establish a connection with an FTP Server in Java.
How can I establish similar connection using FileZilla XML import file instead of user name and password?