从安卓手机上传文件到FTP服务器？

Question

以下是用于创建文本文档并将其上传到我的 FTP 服务器的代码。由于某种原因，它似乎不起作用。我习惯了

提供的库

http://lavalatwork.blogspot.tw/2010/09/using-apache-commons-ftp-library-in.html

用于与 FTP 服务器通信。

try
    {
        final String testString = new String("Hello");
        FileOutputStream fOut = openFileOutput("samplefile.txt",
                MODE_WORLD_READABLE);
        OutputStreamWriter osw = new OutputStreamWriter(fOut); 

        osw.write(testString);
        osw.flush();
        osw.close();
    }


    catch(IOException ex)
    {

    }


    FTPClient mFTP = new FTPClient();
    try {
        // Connect to FTP Server
        mFTP.connect("192.168.10.101");
        //mFTP.login("user", "password");
        mFTP.setFileType(FTP.BINARY_FILE_TYPE);
        mFTP.enterLocalPassiveMode();

        // Prepare file to be uploaded to FTP Server
        File file = new File(getFileStreamPath("samplefile.txt")+ "");
        FileInputStream ifile = new FileInputStream(file);

        // Upload file to FTP Server
        mFTP.storeFile("filetotranfer",ifile);
        mFTP.disconnect();          
    } catch (SocketException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

任何帮助将不胜感激。

Answer 1

看到这个......这将帮助您纠正代码中的问题。

我已使用 apache 的公共库向服务器上传和下载音频文件...请参阅此...

上传中：

public void goforIt(){


        FTPClient con = null;

        try
        {
            con = new FTPClient();
            con.connect("192.168.2.57");

            if (con.login("Administrator", "KUjWbk"))
            {
                con.enterLocalPassiveMode(); // important!
                con.setFileType(FTP.BINARY_FILE_TYPE);
                String data = "/sdcard/vivekm4a.m4a";

                FileInputStream in = new FileInputStream(new File(data));
                boolean result = con.storeFile("/vivekm4a.m4a", in);
                in.close();
                if (result) Log.v("upload result", "succeeded");
                con.logout();
                con.disconnect();
            }
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }






    }

正在下载：

public void goforIt(){
    FTPClient con = null;

    try
    {
        con = new FTPClient();
        con.connect("192.168.2.57");

        if (con.login("Administrator", "KUjWbk"))
        {
            con.enterLocalPassiveMode(); // important!
            con.setFileType(FTP.BINARY_FILE_TYPE);
            String data = "/sdcard/vivekm4a.m4a";

            OutputStream out = new FileOutputStream(new File(data));
            boolean result = con.retrieveFile("vivekm4a.m4a", out);
            out.close();
            if (result) Log.v("download result", "succeeded");
            con.logout();
            con.disconnect();
        }
    }
    catch (Exception e)
    {
        Log.v("download result","failed");
        e.printStackTrace();
    }



}

Answer 2

您可以使用Simple Java FTP Client并将其添加为项目的外部jar，您也可以参考这个link

public class FileUpload
{

   /**
    * Upload a file to a FTP server. A FTP URL is generated with the
    * following syntax:
    * ftp://user:password@host:port/filePath;type=i.
    *
    * @param ftpServer , FTP server address (optional port ':portNumber').
    * @param user , Optional user name to login.
    * @param password , Optional password for user.
    * @param fileName , Destination file name on FTP server (with optional
    *            preceding relative path, e.g. "myDir/myFile.txt").
    * @param source , Source file to upload.
    * @throws MalformedURLException, IOException on error.
    */
   public void upload( String ftpServer, String user, String password,
         String fileName, File source ) throws MalformedURLException,
         IOException
   {
      if (ftpServer != null && fileName != null && source != null)
      {
         StringBuffer sb = new StringBuffer( "ftp://" );
         // check for authentication else assume its anonymous access.
         if (user != null && password != null)
         {
            sb.append( user );
            sb.append( ':' );
            sb.append( password );
            sb.append( '@' );
         }
         sb.append( ftpServer );
         sb.append( '/' );
         sb.append( fileName );
         /*
          * type ==> a=ASCII mode, i=image (binary) mode, d= file directory
          * listing
          */
         sb.append( ";type=i" );

         BufferedInputStream bis = null;
         BufferedOutputStream bos = null;
         try
         {
            URL url = new URL( sb.toString() );
            URLConnection urlc = url.openConnection();

            bos = new BufferedOutputStream( urlc.getOutputStream() );
            bis = new BufferedInputStream( new FileInputStream( source ) );

            int i;
            // read byte by byte until end of stream
            while ((i = bis.read()) != -1)
            {
               bos.write( i );
            }
         }
         finally
         {
            if (bis != null)
               try
               {
                  bis.close();
               }
               catch (IOException ioe)
               {
                  ioe.printStackTrace();
               }
            if (bos != null)
               try
               {
                  bos.close();
               }
               catch (IOException ioe)
               {
                  ioe.printStackTrace();
               }
         }
      }
      else
      {
         System.out.println( "Input not available." );
      }
   }

你也可以使用Apache commons-net-ftp库，更多细节可以关注这个link。

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

FTPClient ftpClient = new FTPClient();

try {
    ftpClient.connect(InetAddress.getByName(SERVER));
    ftpClient.login(USERNAME, PASSWORD);
    ftpClient.changeWorkingDirectory(PATH);

    if (ftpClient.getReplyString().contains("250")) {
        ftpClient.setFileType(org.apache.commons.net.ftp.FTP.BINARY_FILE_TYPE);
        BufferedInputStream buffIn = null;
        buffIn = new BufferedInputStream(new FileInputStream(FULL_PATH_TO_LOCAL_FILE));
        ftpClient.enterLocalPassiveMode();
        ProgressInputStream progressInput = new ProgressInputStream(buffIn, progressHandler);

        boolean result = ftpClient.storeFile(localAsset.getFileName(), progressInput);
        buffIn.close();
        ftpClient.logout();
        ftpClient.disconnect();
    }

} catch (SocketException e) {
    Log.e(SorensonApplication.TAG, e.getStackTrace().toString());
} catch (UnknownHostException e) {
    Log.e(SorensonApplication.TAG, e.getStackTrace().toString());
} catch (IOException e) {
    Log.e(SorensonApplication.TAG, e.getStackTrace().toString());
}

Answer 3

这里是代码块：

private class UploadFile extends AsyncTask<String, Integer, Boolean> {

    @Override
    protected Boolean doInBackground(String... params) {
        FTPClient client = new FTPClient();
        try {
            client.connect(params[1], PORT);
            client.login(params[2], params[3]);
            client.setFileType(FTP.BINARY_FILE_TYPE, FTP.BINARY_FILE_TYPE);
            return client.storeFile(filename, new FileInputStream(new File(
                    params[0])));

        } catch (Exception e) {
            Log.d("FTP", e.toString());
            return false;
        }
    }

    @Override
    protected void onPostExecute(Boolean sucess) {
        if (sucess)
            Toast.makeText(activity, "File Sent", Toast.LENGTH_LONG).show();
        else
            Toast.makeText(activity, "Error", Toast.LENGTH_LONG).show();
    }

}

请获取完整的工作项目，用于从以下驱动器将文件上传到 FTP 服务器。

文件上传到 FTP 使用 PORT 21， 在 FTP 上上传文件所需的参数..

主机名 用户名 密码

https://drive.google.com/file/d/0B80LBJs3JkaDYUNfZ3pDSkVJUDA/edit