只要使用ftp那个package就ok了，另一个包里是一个例子，可以直接运行，连得是163ftp

requirements

• commons-net-3.0.1.jar

quick start

• should config ftpservername ftpport ftpusername ftppassword in FTPConfig.java

以163为例

public static final String FTPSERVER= "10.214.55.163";
public static final int FTPPORT = 21;
public static final String FTPUSERNAME = "lin";
public static final String FTPPASSWORD = "501";

simple useage in activity

• upload file

Intent uploadIntent = new Intent(this, FTPUploadService.class);
uploadIntent.putExtra("localfilename", "ftp/test.jpg");
uploadIntent.putExtra("remotefilename", "test.jpg");
this.startService(uploadIntent);

• download file

Intent downloadIntent = new Intent(this, FTPDownloadService.class);
downloadIntent.putExtra("localfilename", "333.jpg");
downloadIntent.putExtra("localfilepath", "ftp/");
downloadIntent.putExtra("remotefilename", "test.jpg");
this.startService(downloadIntent);

manifest

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>

<service android:name="ftp.FTPUploadService"></service>
<service android:name="ftp.FTPDownloadService"></service>

common bugs

• 默认路径是在/storage/sdcard(/sdcard)，如果下载的时候localfilename一样的话会有异常，所以最好在保存的filename中加有唯一标识(时间戳之类的)