在Android上使用FTP上传图像

implementation 'commons-net:commons-net:3.8.0'

import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class FTPUploader {
    private String server;
    private int port;
    private String username;
    private String password;

    public FTPUploader(String server, int port, String username, String password) {
        this.server = server;
        this.port = port;
        this.username = username;
        this.password = password;
    }

    public boolean uploadImage(File imageFile, String remotePath) {
        FTPClient ftpClient = new FTPClient();
        try {
            ftpClient.connect(server, port);
            ftpClient.login(username, password);
            ftpClient.enterLocalPassiveMode();
            ftpClient.setFileType(FTP.BINARY_FILE_TYPE);

            FileInputStream fileInputStream = new FileInputStream(imageFile);
            boolean success = ftpClient.storeFile(remotePath, fileInputStream);
            fileInputStream.close();

            ftpClient.logout();
            ftpClient.disconnect();

            return success;
        } catch (IOException e) {
            e.printStackTrace();
        }
        return false;
    }
}

File imageFile = new File("path/to/image.jpg");
String remotePath = "/images/image.jpg";

FTPUploader ftpUploader = new FTPUploader("ftp.example.com", 21, "username", "password");
boolean success = ftpUploader.uploadImage(imageFile, remotePath);

if (success) {
    // 图像上传成功
} else {
    // 图像上传失败
}