ftp与sftp文件上传工具类

1、ftp上传工具类

package com.deppon.logistics.utils;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.SocketException;import java.util.List;import java.util.Properties;import java.util.UUID;import org.apache.commons.net.ftp.FTP;import org.apache.commons.net.ftp.FTPClient;import org.apache.commons.net.ftp.FTPFile;import org.apache.commons.net.ftp.FTPReply;import org.springframework.web.multipart.MultipartFile;import com.deppon.logistics.controller.UploadController;public class FTPUtils {//ftp配置放在属性文件中private static Properties ftpConfig;static {ftpConfig = new Properties();try {ftpConfig.load(UploadController.class.getClassLoader().getResourceAsStream("ftp.properties"));} catch (IOException e) {e.printStackTrace();}}/** * springmvc文件上传 * @param file * @return 保存在服务器的文件名 */public static String uploadFile(MultipartFile file) {String filename = null;try {filename = uploadFile(file.getOriginalFilename(), file.getInputStream()); } catch (IOException e) {e.printStackTrace();return null;}return filename;}/** * 通用文件上传 * @param originalFilename * @param is * @return 保存在服务器的文件名 */public static String uploadFile(String originalFilename, InputStream is) {String filename = generateFileUUIDName(originalFilename);FTPClient ftpClient = null;try {ftpClient = connect();// 解决图片上传失真ftpClient.setFileType(FTP.BINARY_FILE_TYPE);ftpClient.setFileTransferMode(FTP.BINARY_FILE_TYPE);ftpClient.storeFile(filename, is);is.close();} catch (IOException e) {e.printStackTrace();return null;}closeClient(ftpClient);return filename;}/** * 下载文件 * 将指定要下载的文件解析到指定的输出流对象 * 并返回服务器上保存的文件的文件名（带有扩展名） * 参数中的filename是前端传递的参数（没有扩展名） * @param filename * @param os * @return 保存在服务器的文件名 */public static String downFile(String filename, OutputStream os) {FTPClient ftpClient = null;try {ftpClient = connect();//解决图片下载失真ftpClient.setFileType(FTP.BINARY_FILE_TYPE);ftpClient.setFileTransferMode(FTP.BINARY_FILE_TYPE);FTPFile[] ftpFiles = ftpClient.listFiles();for (FTPFile file : ftpFiles) {if (file.getName().contains(filename)) {filename = file.getName();ftpClient.retrieveFile(filename, os);break;}}} catch (Exception e) {e.printStackTrace();return null;}closeClient(ftpClient);return filename;}/** * 删除ftp上不在列表中的文件 * 文件记录会存放在数据库中，当数据库中记录删除时， * ftp服务器上对应的文件也要删除 * @param filenames * @return true:成功;false:失败 */public static boolean deleteFiles(List<String> filenames) {FTPClient ftpClient = null;try {ftpClient = connect();// 获取ftp当前目录的文件列表FTPFile[] ftpFiles = ftpClient.listFiles();// 删除标记位boolean isDelete = true;for (FTPFile file : ftpFiles) {isDelete = true;for (String filename : filenames) {if (filename.equalsIgnoreCase(file.getName())) {isDelete = false;}}if (isDelete) {ftpClient.deleteFile(file.getName());}}} catch (Exception e) {e.printStackTrace();return false;}closeClient(ftpClient);return true;}/** * 连接FTP服务器 返回连接对象 * 若使用对象池来维护，可在此方法中borrow连接 *  * @return * @throws IOException  * @throws SocketException  */public static FTPClient connect() throws SocketException, IOException {String host = ftpConfig.getProperty("ftp.host");int port = Integer.parseInt(ftpConfig.getProperty("ftp.port"));String username = ftpConfig.getProperty("ftp.username");String password = ftpConfig.getProperty("ftp.password");String path = ftpConfig.getProperty("ftp.path");FTPClient ftpClient = new FTPClient();ftpClient.connect(host, port);ftpClient.login(username, password);int replyCode = ftpClient.getReplyCode();if (!FTPReply.isPositiveCompletion(replyCode)) {return null;}// 切换到path指定的目录ftpClient.changeWorkingDirectory(path);return ftpClient;}/** * 退出登录状态 关闭连接 *  * @param ftpClient */public static void closeClient(FTPClient ftpClient) {try {if (ftpClient != null) {ftpClient.logout();}} catch (Exception e) {e.printStackTrace();} finally {if (ftpClient != null && ftpClient.isConnected()) {try {ftpClient.disconnect();} catch (IOException ioe) {ioe.printStackTrace();}}}}/** * 生成保存在服务器上的文件名 * @param originalFilename * @return */public static String generateFileUUIDName(String originalFilename) {return UUID.randomUUID().toString().replaceAll("-", "")+ originalFilename.substring(originalFilename.indexOf("."));}}

2、sftp上传工具类

package com.deppon.logistics.utils;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.Properties;import java.util.UUID;import java.util.Vector;import org.springframework.web.multipart.MultipartFile;import com.deppon.logistics.controller.UploadController;import com.jcraft.jsch.Channel;import com.jcraft.jsch.ChannelSftp;import com.jcraft.jsch.ChannelSftp.LsEntry;import com.jcraft.jsch.JSch;import com.jcraft.jsch.JSchException;import com.jcraft.jsch.Session;import com.jcraft.jsch.SftpException;public class SFTPUtils {// sftp配置放在属性文件中private static Properties sftpConfig;static {sftpConfig = new Properties();try {sftpConfig.load(UploadController.class.getClassLoader().getResourceAsStream("sftp.properties"));} catch (IOException e) {e.printStackTrace();}}/** * 获取sftp连接 * @return * @throws JSchException */public static ChannelSftp getChannel() throws JSchException{String host = sftpConfig.getProperty("sftp.host");int port = Integer.parseInt(sftpConfig.getProperty("sftp.port"));String username = sftpConfig.getProperty("sftp.username");JSch jsch = new JSch();Session session = jsch.getSession(username, host, port);Properties config = new Properties();  config.put("StrictHostKeyChecking", "no"); session.setConfig(config); session.setPassword(sftpConfig.getProperty("sftp.password"));session.connect();ChannelSftp channel = (ChannelSftp) session.openChannel("sftp");channel.connect();return channel;}public static void close(Channel channel) {Session session = null;if(channel != null){try {session = channel.getSession();channel.disconnect();session.disconnect();} catch (JSchException e) {e.printStackTrace();}}}/** * 文件上传 * @param file * @return * @throws IOException  * @throws SftpException  * @throws JSchException  */public static String uploadFile(MultipartFile file) {InputStream is = null;try{is = file.getInputStream();}catch(IOException e){e.printStackTrace();}return uploadFile(file.getOriginalFilename(), is);}/** * 文件上传 * @param originalFilename：本地文件名 * @param is：上传文件流 * @return filename：保存在服务器上的文件名 * @throws JSchException  * @throws SftpException  */public static String uploadFile(String originalFilename, InputStream is) {return uploadFile(originalFilename, is, sftpConfig.getProperty("sftp.path"));}/** * 文件上传 * @param originalFilename：本地文件名 * @param is：上传文件流 * @param path：文件保存路径 * @return filename：保存在服务器上的文件名 * @throws JSchException  * @throws SftpException  */public static String uploadFile(String originalFilename, InputStream is, String path) {ChannelSftp channel = null;String filename = generateFileUUIDName(originalFilename);try{channel = getChannel();channel._put(is, path+filename, null, 0);}catch(JSchException e){e.printStackTrace();}catch(SftpException e){e.printStackTrace();}close(channel);return filename;}/** * 文件下载 * @param filename ：待下载的文件名（没有扩展名） * @param os：响应的输出流 * @return filename :待下载的文件名（扩展名） * @throws JSchException  * @throws SftpException  */public static String downFile(String filename, OutputStream os) {return downFile(filename, os, sftpConfig.getProperty("sftp.path"));}/** * 文件下载 * @param filename ：待下载的文件名（没有扩展名） * @param os：响应的输出流 * @return filename :待下载的文件名（扩展名） * @throws SftpException  * @throws JSchException  */@SuppressWarnings("rawtypes")public static String downFile(String filename, OutputStream os, String path) {ChannelSftp channel = null;try{channel = getChannel();Vector ls = channel.ls(path);if(ls != null  && ls.size() > 0){for(int i=0;i<ls.size();i++){LsEntry entry = (LsEntry) ls.get(i);if(entry.getFilename().contains(filename)){filename = entry.getFilename();channel.get(path+filename, os, null);close(channel);return filename;}}}}catch(SftpException e){e.printStackTrace();}catch(JSchException e){e.printStackTrace();}close(channel);return null;}/** * 生成保存在服务器上的文件名 * @param originalFilename * @return */public static String generateFileUUIDName(String originalFilename) {return UUID.randomUUID().toString().replaceAll("-", "")+ originalFilename.substring(originalFilename.indexOf("."));}}