android ftp上传文件

可以使用Apache Commons Net库来实现Android FTP上传文件。以下是一个简单的示例代码：

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 FTPClient ftpClient;

    public FTPUploader() {
        ftpClient = new FTPClient();
    }

    public void uploadFile(String server, int port, String user, String password, String filePath, String remoteDir) throws IOException {
        ftpClient.connect(server, port);
        ftpClient.login(user, password);
        ftpClient.enterLocalPassiveMode();
        ftpClient.setFileType(FTP.BINARY_FILE_TYPE);

        File localFile = new File(filePath);
        FileInputStream inputStream = new FileInputStream(localFile);

        String remoteFilePath = remoteDir + "/" + localFile.getName();
        boolean done = ftpClient.storeFile(remoteFilePath, inputStream);
        inputStream.close();

        if (done) {
            System.out.println("The file was uploaded successfully.");
        } else {
            System.out.println("Could not upload the file.");
        }

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

使用示例：

FTPUploader uploader = new FTPUploader();
uploader.uploadFile("ftp.example.com", 21, "username", "password", "/path/to/local/file", "/path/to/remote/directory");