使用Apache common-net包进行FTP/SFTP操作

青旅半醒 2022-06-15 05:11 642阅读 0赞

import org.apache.commons.net.ftp.FTPSClient;
    import org.apache.commons.net.io.CopyStreamEvent;
    import org.apache.commons.net.io.Util;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import javax.net.ssl.SSLSession;
    import javax.net.ssl.SSLSessionContext;
    import javax.net.ssl.SSLSocket;
    import java.io.BufferedInputStream;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.lang.reflect.Field;
    import java.lang.reflect.Method;
    import java.net.Socket;
    import java.util.Locale;
    
    
    public class SSLSessionReuseFTPSClient extends FTPSClient {
    
        private static final Logger logger = LoggerFactory.getLogger(SSLSessionReuseFTPSClient.class);
    
        /**
         * @param command the command to get
         * @param remote  the remote file name
         * @param local   the local file name
         * @return true if successful
         * @throws IOException on error
         * @since 3.1
         */
        @Override
        protected boolean _retrieveFile(String command, String remote, OutputStream local)
                throws IOException {
            Socket socket = _openDataConnection_(command, remote);
    
            if (socket == null) {
                return false;
            }
    
            final InputStream input;
            input = new BufferedInputStream(socket.getInputStream());
    
            // Treat everything else as binary for now
            try {
                Util.copyStream(input, local, getBufferSize(),
                        CopyStreamEvent.UNKNOWN_STREAM_SIZE, null,
                        false);
            } finally {
                Util.closeQuietly(input);
                Util.closeQuietly(socket);
            }
    
            // Get the transfer response
            boolean ok = completePendingCommand();
            return ok;
        }
    
        @Override
        protected void _prepareDataSocket_(final Socket socket) throws IOException {
    
    
            if (socket instanceof SSLSocket) {
                // Control socket is SSL
                final SSLSession session = ((SSLSocket) _socket_).getSession();
                final SSLSessionContext context = session.getSessionContext();
                //context.setSessionCacheSize(preferences.getInteger("ftp.ssl.session.cache.size"));
                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 (NoSuchFieldException e) {
                    // Not running in expected JRE
                    logger.warn("No field sessionHostPortCache in SSLSessionContext", e);
                } catch (Exception e) {
                    // Not running in expected JRE
                    logger.warn(e.getMessage());
                }
            }
        }
    
    }

import org.apache.commons.lang3.StringUtils;
    import org.apache.commons.net.ftp.*;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.util.ArrayList;
    import java.util.List;
    
    
    public class FTPUtil {
    
    
        private static final Logger logger = LoggerFactory.getLogger(FTPUtil.class);
    
        /**
         * Push a file to server
         */
        public static void storeFileToServer(String server, String username, String password, String directory, File file)
                throws IOException {
            SSLSessionReuseFTPSClient ftpsClient = new SSLSessionReuseFTPSClient();
            FTPClientConfig config = new FTPClientConfig();
            ftpsClient.configure(config);
            try {
                int reply;
                ftpsClient.connect(server);
                ftpsClient.login(username, password);
    
                // After connection attempt, you should check the reply code to verify
                // success.
                reply = ftpsClient.getReplyCode();
    
                if (!FTPReply.isPositiveCompletion(reply)) {
                    ftpsClient.disconnect();
                }
    
                ftpsClient.enterLocalPassiveMode();
                ftpsClient.setFileTransferMode(FTP.STREAM_TRANSFER_MODE);
                ftpsClient.execPROT("P");
    
                ftpsClient.changeWorkingDirectory(directory);
                ftpsClient.storeFile(file.getName(), new FileInputStream(file));
                ftpsClient.logout();
            } catch (IOException e) {
                logger.error("storeFileToServerFTPError", e);
                throw e;
            } finally {
                if (ftpsClient.isConnected()) {
                    try {
                        ftpsClient.disconnect();
                    } catch (IOException ioe) {
                        logger.error("storeFileToServerFTPErrorDisconnect", ioe);
                    }
                }
            }
        }
    
        /**
         * Get FTP server files under the directory
         *
         * @param server
         * @param username
         * @param password
         * @param keyWord
         */
        public static List<File> getFiles(String server, String username, String password, String directory, String keyWord) {
            SSLSessionReuseFTPSClient ftpsClient = new SSLSessionReuseFTPSClient();
            FTPClientConfig config = new FTPClientConfig();
            ftpsClient.configure(config);
            try {
                int reply;
                ftpsClient.connect(server);
                ftpsClient.login(username, password);
    
                // After connection attempt, you should check the reply code to verify
                // success.
                reply = ftpsClient.getReplyCode();
    
                if (!FTPReply.isPositiveCompletion(reply)) {
                    ftpsClient.disconnect();
                }
    
                ftpsClient.enterLocalPassiveMode();
                ftpsClient.setFileTransferMode(FTP.STREAM_TRANSFER_MODE);
                ftpsClient.execPROT("P");
                List<File> files = new ArrayList<>();
    
                FTPFile[] ftpFiles = null;
                if (StringUtils.isBlank(directory)) {
                    ftpFiles = ftpsClient.listFiles(ftpsClient.printWorkingDirectory());
                } else {
                    ftpFiles = ftpsClient.listFiles(directory);
                }
                for (FTPFile ftpFile : ftpFiles) {
                    if (ftpFile.isFile() && ftpFile.getName().indexOf(keyWord) >= 0) {
                        //String prefix = keyWord + "_" + DateFormatUtils.format(new Date(), "yyyy_MM_dd_HHmmss");
                        String remoteName = ftpFile.getName();
                        File tmpFile = File.createTempFile("TMP_", remoteName);
                        ftpsClient.setFileType(3);
                        ftpsClient.retrieveFile(remoteName, new FileOutputStream(tmpFile));
                        files.add(tmpFile);
                    }
                }
                ftpsClient.logout();
                return files;
            } catch (IOException e) {
                logger.error("FTPError", e);
                return null;
            } finally {
                if (ftpsClient.isConnected()) {
                    try {
                        ftpsClient.disconnect();
                    } catch (IOException ioe) {
                        // do nothing
                    }
                }
            }
        }
    
        /**
         * Get FTP server files under the directory
         *
         * @param server
         * @param username
         * @param password
         * @param keyWord
         */
        public static void doCommandRename(String server, String username, String password, String directory, String keyWord,
                                           String targetDirectory) {
            SSLSessionReuseFTPSClient ftpsClient = new SSLSessionReuseFTPSClient();
            FTPClientConfig config = new FTPClientConfig();
            ftpsClient.configure(config);
            try {
                int reply;
                ftpsClient.connect(server);
                ftpsClient.login(username, password);
    
                // After connection attempt, you should check the reply code to verify
                // success.
                reply = ftpsClient.getReplyCode();
    
                if (!FTPReply.isPositiveCompletion(reply)) {
                    ftpsClient.disconnect();
                }
    
                ftpsClient.enterLocalPassiveMode();
                ftpsClient.setFileTransferMode(FTP.STREAM_TRANSFER_MODE);
                ftpsClient.execPROT("P");
                FTPFile[] ftpFiles = null;
                if (StringUtils.isBlank(directory)) {
                    ftpFiles = ftpsClient.listFiles(ftpsClient.printWorkingDirectory());
                } else {
                    ftpFiles = ftpsClient.listFiles(directory);
                }
    
                for (FTPFile ftpFile : ftpFiles) {
                    if (ftpFile.isFile() && ftpFile.getName().indexOf(keyWord) >= 0) {
                        ftpsClient.rename(ftpFile.getName(), targetDirectory + ftpFile.getName());
                    }
                }
                ftpsClient.logout();
            } catch (IOException e) {
                logger.error("FTPError", e);
            } finally {
                if (ftpsClient.isConnected()) {
                    try {
                        ftpsClient.disconnect();
                    } catch (IOException ioe) {
                        // do nothing
                    }
                }
            }
        }
    }