java 通過SFTP連線,獲取指定目錄檔案和上傳檔案
阿新 • • 發佈:2018-12-12
import com.jcraft.jsch.Channel; import com.jcraft.jsch.ChannelSftp; import com.jcraft.jsch.JSch; import com.jcraft.jsch.Session; import com.jcraft.jsch.SftpException; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; public class SftpClientUtil { /** * 密碼方式登入 讀取指定目錄檔案 * * @param ip * @param user * @param psw * @param port */ public static File[] sshSftpReadFile(String ip, String user, String psw, int port, String sPath) { Session session = null; File[] targetFiles =null; JSch jsch = new JSch(); try { if (port <= 0) { // 連線伺服器,採用預設埠 session = jsch.getSession(user, ip); } else { // 採用指定的埠連線伺服器 session = jsch.getSession(user, ip, port); } // 如果伺服器連線不上,則丟擲異常 if (session == null) { throw new Exception("session is null"); } // 設定登陸主機的密碼 session.setPassword(psw);// 設定密碼 // 設定第一次登陸的時候提示,可選值:(ask | yes | no) session.setConfig("StrictHostKeyChecking", "no"); // 設定登陸超時時間 session.connect(300000); targetFiles = readFile(session,sPath); } catch (Exception e) { e.printStackTrace(); } return targetFiles; } /** * 密碼方式登入 上傳指定檔案到指定目錄 * * @param ip * @param user * @param psw * @param port */ public static File sshSftpUpLoadFile(String ip, String user, String psw, int port, String sPath,File file) { Session session = null; File folderToScan = null; JSch jsch = new JSch(); try { if (port <= 0) { // 連線伺服器,採用預設埠 session = jsch.getSession(user, ip); } else { // 採用指定的埠連線伺服器 session = jsch.getSession(user, ip, port); } // 如果伺服器連線不上,則丟擲異常 if (session == null) { throw new Exception("session is null"); } // 設定登陸主機的密碼 session.setPassword(psw);// 設定密碼 // 設定第一次登陸的時候提示,可選值:(ask | yes | no) session.setConfig("StrictHostKeyChecking", "no"); // 設定登陸超時時間 session.connect(300000); upLoadFile(session,file,sPath); } catch (Exception e) { e.printStackTrace(); } return folderToScan; } public static File[] readFile(Session session, String sPath) { Channel channel = null; File folderToScan = null; File[] targetFiles =null; try { channel = (Channel) session.openChannel("sftp"); channel.connect(10000000); ChannelSftp sftp = (ChannelSftp) channel; try { sftp.cd(sPath); } catch (SftpException e) { sftp.mkdir(sPath); sftp.cd(sPath); } folderToScan = new File(sPath); targetFiles = folderToScan.listFiles(); } catch (Exception e) { e.printStackTrace(); } finally { session.disconnect(); channel.disconnect(); } return targetFiles; } public static void upLoadFile(Session session, File file , String sPath) { Channel channel = null; try { channel = (Channel) session.openChannel("sftp"); channel.connect(10000000); ChannelSftp sftp = (ChannelSftp) channel; try { sftp.cd(sPath); // } catch (SftpException e) { sftp.mkdir(sPath); sftp.cd(sPath); } copyFile(sftp, file, sftp.pwd()); } catch (Exception e) { e.printStackTrace(); } finally { session.disconnect(); channel.disconnect(); } } public static void copyFile(ChannelSftp sftp, File file, String pwd) { if (file.isDirectory()) { File[] list = file.listFiles(); try { try { String fileName = file.getName(); sftp.cd(pwd); sftp.mkdir(fileName); } catch (Exception e) { // TODO: handle exception } pwd = pwd + "/" + file.getName(); try { sftp.cd(file.getName()); } catch (SftpException e) { // TODO: handle exception e.printStackTrace(); } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } for (int i = 0; i < list.length; i++) { copyFile(sftp, list[i], pwd); } } else { try { sftp.cd(pwd); } catch (SftpException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } InputStream instream = null; OutputStream outstream = null; try { outstream = sftp.put(file.getName()); instream = new FileInputStream(file); byte b[] = new byte[1024]; int n; try { while ((n = instream.read(b)) != -1) { outstream.write(b, 0, n); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } catch (SftpException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { try { outstream.flush(); outstream.close(); instream.close(); } catch (Exception e2) { // TODO: handle exception e2.printStackTrace(); } } } }
/** * 密匙方式登入 * * @param ip * @param user * @param port * @param privateKey * @param passphrase * @param sPath * @param dPath */ public static void sshSftp2(String ip, String user, int port, String privateKey, String passphrase, String sPath, String dPath) { System.out.println("privateKey login"); Session session = null; JSch jsch = new JSch(); try { // 設定金鑰和密碼 // 支援金鑰的方式登陸,只需在jsch.getSession之前設定一下金鑰的相關資訊就可以了 if (privateKey != null && !"".equals(privateKey)) { if (passphrase != null && "".equals(passphrase)) { // 設定帶口令的金鑰 jsch.addIdentity(privateKey, passphrase); } else { // 設定不帶口令的金鑰 jsch.addIdentity(privateKey); } } if (port <= 0) { // 連線伺服器,採用預設埠 session = jsch.getSession(user, ip); } else { // 採用指定的埠連線伺服器 session = jsch.getSession(user, ip, port); } // 如果伺服器連線不上,則丟擲異常 if (session == null) { throw new Exception("session is null"); } // 設定第一次登陸的時候提示,可選值:(ask | yes | no) session.setConfig("StrictHostKeyChecking", "no"); // 設定登陸超時時間 session.connect(300000); UpLoadFile.upLoadFile(session, sPath, dPath); System.out.println("success"); } catch (Exception e) { e.printStackTrace(); } } }