[Android]Android(安卓)FTP server based on Apache FTPServer

老板让做的用Android做热点，同时作为FTP服务器。网上的都在吐槽其他人的不好使，结果页没有一个能好使的，最后还是靠Stack Overflow完成了初试验！

在我的电脑或者浏览器里输入FTP地址、账号密码就能实现文件互传了！HIAHIAHIA！

Apache官网可以下载最新的Apache FtpServer 1.0.6 Release，先将解压后\apache-ftpserver-1.0.6\common\lib路径下的

这几个jar包复制到project/libs内，然后Eclipse内打开project，在project上右键-->properties-->Java Build Path-->Libraries-->Add External JARs，选择刚才导入的几个jar包。

由于要使用一个用户配置文件的copy，所以在project/res/下新建raw文件夹，新建文件users.properties，复制如下内容：

# Licensed to the Apache Software Foundation (ASF) under one  # or more contributor license agreements.  See the NOTICE file  # distributed with this work for additional information  # reanonymousding copyright ownership.  The ASF licenses this file  # to you under the Apache License, Version 2.0 (the  # "License"); you may not use this file except in compliance  # with the License.  You may obtain a copy of the License at  #  #  http://www.apache.org/licenses/LICENSE-2.0  #  # Unless required by applicable law or agreed to in writing,  # software distributed under the License is distributed on an  # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY  # KIND, either express or implied.  See the License for the  # specific language governing permissions and limitations  # under the License.    # Password is "admin"  ftpserver.user.admin.userpassword=admin    ftpserver.user.admin.homedirectory=/ftpserver.user.admin.enableflag=true  ftpserver.user.admin.writepermission=true  ftpserver.user.admin.maxloginnumber=20  ftpserver.user.admin.maxloginperip=5 ftpserver.user.admin.idletime=300  ftpserver.user.admin.uploadrate=4800000  ftpserver.user.admin.downloadrate=4800000    ftpserver.user.anonymous.userpassword=ftpserver.user.anonymous.homedirectory=/ftpserver.user.anonymous.enableflag=true  ftpserver.user.anonymous.writepermission=true  ftpserver.user.anonymous.maxloginnumber=20  ftpserver.user.anonymous.maxloginperip=5  ftpserver.user.anonymous.idletime=300  ftpserver.user.anonymous.uploadrate=4800000  ftpserver.user.anonymous.downloadrate=4800000

然后在AndroidManifest.xml文件内添加权限：

下面上代码：

FTPLetImpl.java

package com.example.ftptest02;import java.io.IOException;import org.apache.ftpserver.ftplet.DefaultFtplet;import org.apache.ftpserver.ftplet.FtpException;import org.apache.ftpserver.ftplet.FtpRequest;import org.apache.ftpserver.ftplet.FtpSession;import org.apache.ftpserver.ftplet.FtpletResult;public class FTPLetImpl extends DefaultFtplet {    @Override    public FtpletResult onLogin(FtpSession session, FtpRequest request) throws FtpException, IOException {        System.out.println(session.getUser().getName() + " Logged in");        return super.onLogin(session, request);    }    @Override    public FtpletResult onDisconnect(FtpSession session) throws FtpException, IOException {        System.out.println(session.getUser().getName() + " Disconnected");        return super.onDisconnect(session);    }    @Override    public FtpletResult onDownloadStart(FtpSession session, FtpRequest request) throws FtpException, IOException {        System.out.println(session.getUser().getName() + " Started Downloading File " + request.getArgument());        return super.onDownloadStart(session, request);    }    @Override    public FtpletResult onDownloadEnd(FtpSession session, FtpRequest request) throws FtpException, IOException {        System.out.println("Finished Downloading " + request.getArgument());        return super.onDownloadEnd(session, request);    }}

SFTPServer.java

package com.example.ftptest02;import java.io.File;import java.util.ArrayList;import java.util.List;import org.apache.ftpserver.ConnectionConfigFactory;import org.apache.ftpserver.FtpServer;import org.apache.ftpserver.FtpServerFactory;import org.apache.ftpserver.ftplet.Authority;import org.apache.ftpserver.ftplet.FtpException;import org.apache.ftpserver.ftplet.UserManager;import org.apache.ftpserver.listener.ListenerFactory;import org.apache.ftpserver.usermanager.PropertiesUserManagerFactory;import org.apache.ftpserver.usermanager.SaltedPasswordEncryptor;import org.apache.ftpserver.usermanager.impl.BaseUser;import org.apache.ftpserver.usermanager.impl.ConcurrentLoginPermission;import org.apache.ftpserver.usermanager.impl.TransferRatePermission;import org.apache.ftpserver.usermanager.impl.WritePermission;import android.os.Environment;public class SFTPServer {// ===========================================================    // Constants    // ===========================================================    private final int FTP_PORT = 2221;    private final String DEFAULT_LISTENER = "default";    // private final Logger LOG = LoggerFactory.getLogger(SFTPServer.class);    private static final List ADMIN_AUTHORITIES;    private static final int BYTES_PER_KB = 1024;    private static String ftpConfigDir= Environment.getExternalStorageDirectory().getAbsolutePath()+"/ftpConfig/";    private static final String DEFAULT_USER_DIR = ftpConfigDir;    public final static int MAX_CONCURRENT_LOGINS = 1;    public final static int MAX_CONCURRENT_LOGINS_PER_IP = 1;     // ===========================================================    // Fields    // ===========================================================    private static FtpServer mFTPServer;    private static UserManager mUserManager;    private static FtpServerFactory mFTPServerFactory;    private ListenerFactory mListenerFactor;    // ===========================================================    // Constructors    // ===========================================================    static {        // Admin Authorities        ADMIN_AUTHORITIES = new ArrayList();        ADMIN_AUTHORITIES.add(new WritePermission());        ADMIN_AUTHORITIES.add(new ConcurrentLoginPermission(MAX_CONCURRENT_LOGINS, MAX_CONCURRENT_LOGINS_PER_IP));        ADMIN_AUTHORITIES.add(new TransferRatePermission(Integer.MAX_VALUE, Integer.MAX_VALUE));    }    // ===========================================================    // Getter & Setter    // ===========================================================    // ===========================================================    // Methods for/from SuperClass/Interfaces    // ===========================================================    // ===========================================================    // Methods    // ===========================================================    public void init() throws FtpException {        mFTPServerFactory = new FtpServerFactory();        mListenerFactor = new ListenerFactory();        mListenerFactor.setPort(FTP_PORT);                //anonymous login        //seems no need        //ConnectionConfigFactory connectionConfigFactory = new ConnectionConfigFactory();        //connectionConfigFactory.setAnonymousLoginEnabled(true);        //mFTPServerFactory.setConnectionConfig(connectionConfigFactory.createConnectionConfig());        mFTPServerFactory.addListener(DEFAULT_LISTENER, mListenerFactor.createListener());        mFTPServerFactory.getFtplets().put(FTPLetImpl.class.getName(), new FTPLetImpl());        PropertiesUserManagerFactory userManagerFactory = new PropertiesUserManagerFactory();                userManagerFactory.setFile(new File(ftpConfigDir + "users.properties"));        userManagerFactory.setPasswordEncryptor(new SaltedPasswordEncryptor());        mUserManager = userManagerFactory.createUserManager();        mFTPServerFactory.setUserManager(mUserManager);        this.createAdminUser();        SFTPServer.addUser("admin1", "123456", 20, 20);        //SFTPServer.addUser("gar", "gar", 100, 100);        //this works        //SFTPServer.addUser("anonymous", "", 20, 20);                mFTPServer = mFTPServerFactory.createServer();        mFTPServer.start();    }    private UserManager createAdminUser() throws FtpException {        UserManager userManager = mFTPServerFactory.getUserManager();        String adminName = userManager.getAdminName();                System.out.println(adminName);        if (!userManager.doesExist(adminName)) {            // LOG.info((new            // StringBuilder()).append("Creating user : ").append(adminName).toString());            BaseUser adminUser = new BaseUser();            adminUser.setName(adminName);            adminUser.setPassword(adminName);            adminUser.setEnabled(true);            adminUser.setAuthorities(ADMIN_AUTHORITIES);            adminUser.setHomeDirectory(DEFAULT_USER_DIR);            adminUser.setMaxIdleTime(0);            userManager.save(adminUser);        }        return userManager;    }    public static void addUser(String username, String password, int uploadRateKB, int downloadRateKB) throws FtpException {        BaseUser user = new BaseUser();        user.setName(username);        user.setPassword(password);        user.setHomeDirectory(DEFAULT_USER_DIR);        user.setEnabled(true);                //BaseUser anonuser = new BaseUser();        //anonuser = new BaseUser(user);        //anonuser.setName("anonymous");        List list = new ArrayList();        list.add(new TransferRatePermission(downloadRateKB * BYTES_PER_KB, uploadRateKB * BYTES_PER_KB)); // 20KB        list.add(new ConcurrentLoginPermission(MAX_CONCURRENT_LOGINS, MAX_CONCURRENT_LOGINS_PER_IP));        //write permission        //list.add(new WritePermission());        user.setAuthorities(list);        mFTPServerFactory.getUserManager().save(user);    }        public static void restartFTP() throws FtpException {        if (mFTPServer != null) {            mFTPServer.stop();            try {                Thread.sleep(1000 * 3);            } catch (InterruptedException e) {            }            mFTPServer.start();        }    }    public static void stopFTP() throws FtpException {        if (mFTPServer != null) {            mFTPServer.stop();            System.out.println("server stoped");        }    }    public static void pauseFTP() throws FtpException {        if (mFTPServer != null) {            mFTPServer.suspend();        }    }    public static void resumeFTP() throws FtpException {        if (mFTPServer != null) {            mFTPServer.resume();        }    }    // ===========================================================    // Inner and Anonymous Classes    // ===========================================================}

开始的时候不好使是因为没有写user类，实际上就没有添加user，即使拷贝了用户配置文件，所以仍旧无法访问；

现在也只是能添加用户，匿名登陆似乎不是十分完善，密码设为空时直接就能登录了。。。

MainActivity.java

package com.example.ftptest02;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.InetAddress;import java.net.NetworkInterface;import java.net.SocketException;import java.util.Enumeration;import org.apache.ftpserver.ftplet.FtpException;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.os.Environment;import android.util.Log;import android.widget.TextView;public class MainActivity extends Activity {public static String hostip;private static String ftpConfigDir= Environment.getExternalStorageDirectory().getAbsolutePath()+"/ftpConfig/";String state;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);                TextView tv=(TextView)findViewById(R.id.tvText);          String info="请通过浏览器或者我的电脑访问以下地址\n"+"ftp://"+getLocalIpAddress()+":2221\n";          hostip = getLocalIpAddress();        state = Environment.getExternalStorageState();        System.out.println(state.equals(Environment.MEDIA_MOUNTED));        System.out.println(Environment.getExternalStorageDirectory().getAbsolutePath());        System.out.println("hosip->>" + hostip);        tv.setText(info);                  Runnable myRunnable = new MyRunnable();        Thread myThread = new Thread(myRunnable);        myThread.start();            }        class MyRunnable implements Runnable {@Overridepublic void run() {// TODO Auto-generated method stubFile f=new File(ftpConfigDir);          if(!f.exists())              f.mkdir();          copyResourceFile(R.raw.users, ftpConfigDir + "users.properties");          try {        new SFTPServer().init();} catch (FtpException e) {// TODO Auto-generated catch blocke.printStackTrace();}          System.out.println("server is on");}    }        public String getLocalIpAddress() {          String strIP=null;          try {              for (Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {                  NetworkInterface intf = en.nextElement();                  for (Enumeration enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {                      InetAddress inetAddress = enumIpAddr.nextElement();                      if (!inetAddress.isLoopbackAddress()) {                          strIP= inetAddress.getHostAddress().toString();                      }                  }              }          } catch (SocketException ex) {              Log.e("msg", ex.toString());          }          return strIP;      }          private void copyResourceFile(int rid, String targetFile){          InputStream fin = ((Context)this).getResources().openRawResource(rid);          FileOutputStream fos=null;          int length;          try {              fos = new FileOutputStream(targetFile);              byte[] buffer = new byte[1024];               while( (length = fin.read(buffer)) != -1){                  fos.write(buffer,0,length);              }          } catch (FileNotFoundException e) {              e.printStackTrace();          } catch (IOException e) {              e.printStackTrace();          } finally{              if(fin!=null){                  try {                      fin.close();                  } catch (IOException e) {                      e.printStackTrace();                  }              }               if(fos!=null){                   try {                      fos.close();                  } catch (IOException e) {                      e.printStackTrace();                  }               }          }      }  }

这个layout比较简单，就不贴了，自己写一下就OK，连个按钮都不用。

直接用Android设备作为热点并实现FTP服务器也已经实现，过两天整理一下记录一下。

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