通过ApacheFtpServer实现，依赖以下jar包：

commons-net-ftp-2.0.jar

ftpserver-core-1.0.6.jar

log4j-1.2.14.jar

mina-core-2.0.4.jar

slf4j-api-1.5.2.jar

slf4j-log4j12-1.5.2.jar

资源下载地址 http://download.csdn.net/detail/smile3670/8508525

代码片段

private static final int PORT = 2222;

// sd卡目录

@SuppressLint("SdCardPath")

private static final String dirname = "/mnt/sdcard/ftp";

// ftp服务器配置文件路径

private static final String filename = dirname + "/users.properties";

private FtpServer mFtpServer = null;

/**

* 开启FTP服务器

* @param hostip 本机ip

*/

private void startFtpServer(String hostip) {

FtpServerFactory serverFactory = new FtpServerFactory();

PropertiesUserManagerFactory userManagerFactory = new PropertiesUserManagerFactory();

File files = new File(filename);

//设置配置文件

userManagerFactory.setFile(files);

serverFactory.setUserManager(userManagerFactory.createUserManager());

// 设置监听IP和端口号

ListenerFactory factory = new ListenerFactory();

factory.setPort(PORT);

factory.setServerAddress(hostip);

// replace the default listener

serverFactory.addListener("default", factory.createListener());

// start the server

mFtpServer = serverFactory.createServer();

try {

mFtpServer.start();

Log.d(TAG, "开启了FTP服务器 ip = " + hostip);

} catch (FtpException e) {

System.out.println(e);

}

} 开启服务前需在文件路径里添加配置文件users.properties  /mnt/sdcard/ftp # ls files users.properties /mnt/sdcard/ftp # cat users.properties  ftpserver.user.admin.userpassword=21232F297A57A5A743894A0E4A801FC3  ftpserver.user.admin.homedirectory=/mnt/sdcard/ftp/  ftpserver.user.admin.enableflag=true  ftpserver.user.admin.writepermission=true  ftpserver.user.admin.maxloginnumber=0  ftpserver.user.admin.maxloginperip=0  ftpserver.user.admin.idletime=0  ftpserver.user.admin.uploadrate=0  ftpserver.user.admin.downloadrate=0  ftpserver.user.anonymous.userpassword=anonymous  ftpserver.user.anonymous.homedirectory=/mnt/sdcard/ftp/  ftpserver.user.anonymous.enableflag=true  ftpserver.user.anonymous.writepermission=false  ftpserver.user.anonymous.maxloginnumber=20  ftpserver.user.anonymous.maxloginperip=2  ftpserver.user.anonymous.idletime=300  ftpserver.user.anonymous.uploadrate=480000  ftpserver.user.anonymous.downloadrate=480000 配置修改可参考 http://blog.csdn.net/zzh87615/article/details/6274461 demon下载地址http://download.csdn.net/detail/smile3670/8508939