将文件从带有FTPS的android传输到服务器[副本]

Question

我正在我的android应用程序中使用Apache Commons FTP库

我正在通过FTPS进行连接，虽然它完美地连接到服务器，但我在传输文件时遇到了问题。

由于安全原因，订购应用程序的客户端请求在使用PROT P时请求数据连接上的TLS会话恢复。

TransferImagenesFTP.ftpClient = new FTPSClient();

TransferImagenesFTP.ftpClient.connect(InetAddress.getByName("XXX_XXX_XX_X"), 26);
TransferImagenesFTP.ftpClient.enterLocalPassiveMode();
TransferImagenesFTP.ftpClient.setBufferSize(1024000);
TransferImagenesFTP.ftpClient.login("xxxxxx", "zzzzzz");
TransferImagenesFTP.ftpClient.execPROT("P");
TransferImagenesFTP.ftpClient.type(FTP.BINARY_FILE_TYPE);

Answer 1

您可以试试下面的代码，我希望它也能适用于您的情况。

代码使用Apache Commons vsf2通过安全ftp连接(SFTP)上载文件

try {
  String filepath = "<FILE PATH>";
  String serverAddress = "<FTP SERVER ADDRESS>";
  String userId = "<FTP USER ID>";
  String password = "<FTP PASSWORD>";
  String remoteDirectory = "<FTP DIRECTORY TO UPLOAD TO>";   
  String keyPath = "<PATH TO YOUR KEY>";   
  String passPhrase = "<PASSWORD FOR YOUR KEY>";   


  File file = new File(filepath);
  if (!file.exists())
    throw new RuntimeException("Error. File not found");

  //Initializes the file manager
  StandardFileSystemManager manager = new StandardFileSystemManager();
  manager.init();

  //Setup our SFTP configuration
  FileSystemOptions opts = new FileSystemOptions();
  SftpFileSystemConfigBuilder.getInstance().setStrictHostKeyChecking(opts, "no");
  SftpFileSystemConfigBuilder.getInstance().setUserDirIsRoot(opts, true);
  SftpFileSystemConfigBuilder.getInstance().setTimeout(opts, 10000);

  // Create local file object
  FileObject localFile = manager.resolveFile(file.getAbsolutePath());

  // Create remote file object
  FileObject remoteFile = manager.resolveFile(createConnectionString(serverAddress, userId, password, keyPath, passPhrase, fileToFTP), createDefaultOptions(keyPath, passPhrase));


  // Copy local file to sftp server
  remoteFile.copyFrom(localFile, Selectors.SELECT_SELF);
  System.out.println("File upload successful");

}
catch (Exception ex) {
  ex.printStackTrace();
  return false;
}
finally {
  manager.close();
}

您可以在Apache Commons VFS文档中查看更多信息

import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.Socket;
import java.util.Locale;

import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSessionContext;
import javax.net.ssl.SSLSocket;

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

import com.google.common.base.Throwables;

public class PatchedFTPSClient extends FTPSClient {

        @Override
        protected void _prepareDataSocket_(final Socket socket) throws IOException {
                if(socket instanceof SSLSocket) {
                        final SSLSession session = ((SSLSocket) _socket_).getSession();
                        final SSLSessionContext context = session.getSessionContext();
                        try {
                                final Field sessionHostPortCache = context.getClass().getDeclaredField("sessionHostPortCache");
                                sessionHostPortCache.setAccessible(true);
                                final Object cache = sessionHostPortCache.get(context);
                                final Method method = cache.getClass().getDeclaredMethod("put", Object.class, Object.class);
                                method.setAccessible(true);
                                final String key = String.format("%s:%s", socket.getInetAddress().getHostName(),
                                                                                                String.valueOf(socket.getPort())).toLowerCase(Locale.ROOT);
                                method.invoke(cache, key, session);
                        } catch(Exception e) {
                                throw Throwables.propagate(e);
                        }
                }
        }

}

使用此修改后的代码段。

TransferImagenesFTP.ftpClient = new PatchedFTPSClient();

TransferImagenesFTP.ftpClient.connect(InetAddress.getByName<SERVER-ADDRESS>"), 26);
TransferImagenesFTP.ftpClient.login("<USERNAME>", "<PASSWORD>");
TransferImagenesFTP.ftpClient.execPBSZ(0);
TransferImagenesFTP.ftpClient.execPROT("P");
TransferImagenesFTP.ftpClient.enterLocalPassiveMode();

//Now use the FTP client to upload the file as usual.

希望这将为您工作，并将解决您的问题。