java 操作sftp

import java.io.File;import java.io.FileInputStream;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Properties;import java.util.Vector;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.SftpATTRS;public final class MySFTP {static String _root = "/";static com.jcraft.jsch.Session _sshSession;public static ChannelSftp connect(String host, String userName,String password, int port, String root) throws Exception {ChannelSftp sftp = null;try {JSch jsch = new JSch();_sshSession = jsch.getSession(userName, host, port);// System.out.println("Session created.");_sshSession.setPassword(password);Properties sshConfig = new Properties();sshConfig.put("StrictHostKeyChecking", "no");_sshSession.setConfig(sshConfig);_sshSession.connect();System.out.println("Session connected.");System.out.println("Opening Channel.");Channel channel = _sshSession.openChannel("sftp");channel.connect();sftp = (ChannelSftp) channel;System.out.println("Connected to " + host + ".");System.out.println("链接到SFTP成功》》》++++++" + host);sftp.cd(root);_root += root;return sftp;} catch (Exception e) {throw e;}}public static void disconnect(ChannelSftp sftp) {if (sftp != null) {if (sftp.isConnected()) {sftp.disconnect();System.out.println("sftp关闭连接！！！！！====" + sftp);} else if (sftp.isClosed()) {}}if (_sshSession != null && _sshSession.isConnected()) {_sshSession.disconnect();}System.out.println("sftp 已经关闭");}public boolean isConnected(ChannelSftp sftp) {return (sftp != null) && sftp.isConnected() && !sftp.isClosed()&& (_sshSession != null) && _sshSession.isConnected();}private static Vector _list(String dir, ChannelSftp sftp) {try {return sftp.ls(dir);} catch (Exception e) {return null;}}private static Vector _list(ChannelSftp sftp) {try {return sftp.ls(sftp.pwd());} catch (Exception e) {return null;}}public static List list(String dir, ChannelSftp sftp) {try {Vector ls = _list(dir, sftp);return _buildFiles(ls);} catch (Exception e) {return null;}}private static List _buildFiles(Vector ls) throws Exception {if (ls != null && ls.size() >= 0) {List list = new ArrayList();for (int i = 0; i < ls.size(); i++) {LsEntry f = (LsEntry) ls.get(i);String nm = f.getFilename();if (nm.equals(".") || nm.equals(".."))continue;SftpATTRS attr = f.getAttrs();Map m = new HashMap();if (attr.isDir()) {m.put("dir", new Boolean(true));} else {m.put("dir", new Boolean(false));}m.put("name", nm);list.add(m);}return list;}return null;}public static List list(ChannelSftp sftp) {try {Vector ls = _list(sftp);return _buildFiles(ls);} catch (Exception e) {return null;}}public static boolean cd(String dirs, ChannelSftp sftp) throws Exception {try {String path = dirs;if (path.indexOf("\\") != -1) {path = dirs.replaceAll("\\", "/");}String pwd = sftp.pwd();if (pwd.equals(path))return true;sftp.cd(_root);if(_root.equals(dirs))return true;String[] paths = path.split("/");for (int i = 0; i < paths.length; i++) {String dir = paths[i];if(isEmpty(dir))continue;sftp.cd(dir);}return true;} catch (Exception e) {throw e;}}public static boolean isExist(String root, String fileOrDir,ChannelSftp sftp) throws Exception {try {boolean exist = false;boolean cdflg = false;String pwd = sftp.pwd();if (pwd.indexOf(root) == -1) {cdflg = true;sftp.cd(root);}Vector ls = _list(root, sftp);if (ls == null || ls.size() <= 0) {for (int i = 0; i < ls.size(); i++) {LsEntry f = (LsEntry) ls.get(i);String nm = f.getFilename();if (nm.equals(fileOrDir)) {exist = true;break;}}}if (cdflg) {sftp.cd("..");}return exist;} catch (Exception e) {throw e;}}public static boolean isEmpty(String s) {return s == null || "".equals(s.trim());}public static boolean upload(String uploadFile, ChannelSftp sftp)throws Exception {java.io.InputStream is = null;try {File file = new File(uploadFile);is = new FileInputStream(file);sftp.put(is, file.getName());return true;} catch (Exception e) {throw e;}finally{try {if(is!=null){is.close();is=null;}} catch (Exception e2) {e2.printStackTrace();}}}public static void download(String dir, String downloadFile,String saveFile, ChannelSftp sftp) {try {boolean isCd = false;if (!isEmpty(dir)) {sftp.cd(dir);isCd = true;}// File file = new File(saveFile);// sftp.get(downloadFile, new FileOutputStream(file));sftp.get(downloadFile, saveFile);if (isCd)sftp.cd("..");System.out.println("下载文件成功！！！！！====" + sftp);} catch (Exception e) {e.printStackTrace();System.out.println("下载文件失败！！！！！=*******" + sftp);}}public static boolean mkDir(String filepath, ChannelSftp sftp)throws Exception {try {String path = filepath;if (path.indexOf("\\") != -1) {path = filepath.replaceAll("\\", "/");}String[] paths = path.split("/");for (int i = 0; i < paths.length; i++) {String dir = paths[i];Vector ls = _list(dir, sftp);if (ls == null || ls.size() <= 0) {sftp.mkdir(dir);}sftp.cd(dir);}} catch (Exception e1) {throw e1;}return true;}public static boolean rm(String deleteFile, ChannelSftp sftp)throws Exception {try {Vector ls = _list(sftp);if (ls != null && ls.size() > 0) {for (int i = 0; i < ls.size(); i++) {LsEntry f = (LsEntry) ls.get(i);String nm = f.getFilename();if (!nm.equals(deleteFile)) {continue;}SftpATTRS attr = f.getAttrs();if (attr.isDir()) {if (rmdir(nm, sftp)) {sftp.rmdir(nm);}} else {sftp.rm(nm);}}}return true;} catch (Exception e) {throw e;}}private static boolean rmdir(String dir, ChannelSftp sftp) throws Exception {try {sftp.cd(dir);Vector ls = _list(sftp);if (ls != null && ls.size() > 0) {for (int i = 0; i < ls.size(); i++) {LsEntry f = (LsEntry) ls.get(i);String nm = f.getFilename();if (nm.equals(".") || nm.equals(".."))continue;SftpATTRS attr = f.getAttrs();if (attr.isDir()) {if (rmdir(nm, sftp)) {sftp.rmdir(nm);}} else {sftp.rm(nm);}}}sftp.cd("..");return true;} catch (Exception e) {throw e;}}}

import java.util.List;import java.util.Map;import com.jcraft.jsch.ChannelSftp;public class TestMySFTP {public static void main(String[] args) throws Exception {String userName = "ftpuser"; // FTP 登录用户名String password = "123"; // FTP 登录密码String host = "192.168.0.147"; // FTP 服务器地址IP地址int port = 22; // FTP 端口String root = "gzfw";TestMySFTP app = new TestMySFTP();ChannelSftp sftp = MySFTP.connect(host, userName, password, port, root);//app.upload(sftp);//app.removeFile(sftp);app.download(sftp);MySFTP.disconnect(sftp);}void upload(ChannelSftp sftp){try {String dir = "a/b/c";boolean flg = MySFTP.mkDir(dir, sftp);if(flg){String pwd = sftp.pwd();System.out.println(pwd);System.out.println(sftp.getHome());System.out.println(sftp.lpwd());//sftp.cd(".");//sftp.cd("..");String uploadFile = "d:/sql.txt";MySFTP.upload(uploadFile, sftp);//上传System.out.println("上传-成功.");}//dir = "a";//flg = MySFTP.cd(dir, sftp);//if(flg){//String uploadFile = "d:/dwsgsDelDup12.sql";//MySFTP.upload(uploadFile, sftp);//上传//System.out.println("上传-成功.");//}} catch (Exception e) {System.out.println("--上传失败..");e.printStackTrace();}}void removeFile(ChannelSftp sftp){try {String dirs = "a/b";boolean flg = MySFTP.cd(dirs, sftp);if(flg){String deleteFile = "c";MySFTP.rm(deleteFile, sftp);System.out.println("删除-成功.");}} catch (Exception e) {System.out.println("--删除失败..");e.printStackTrace();}}void download(ChannelSftp sftp){try {boolean flg = MySFTP.cd("/gzfw", sftp);if(flg){List files = MySFTP.list(sftp);if(files!=null&&files.size()>0){for(int i=0;i<files.size();i++){Map item = (Map)files.get(i);String f = (String)item.get("name");boolean isDir = ((Boolean)item.get("dir")).booleanValue();System.out.println("---本目录---"+f+" 是:"+isDir);if(isDir){List subfiles = MySFTP.list(f,sftp);for(int j=0;j<subfiles.size();j++){Map item1 = (Map)subfiles.get(j);boolean isDir1 = ((Boolean)item1.get("dir")).booleanValue();if(isDir1)continue;String ff = (String)item1.get("name");System.out.println("---2----"+ff);MySFTP.download(f,ff, "e:/ftp/"+ff, sftp);}}MySFTP.rm(f, sftp);}}}} catch (Exception e) {e.printStackTrace();}}}

转载自：点击打开链接