SFPT协议下载上传文件

来源：互联网发布：vb中weekday是什么意思编辑：程序博客网时间：2024/05/16 10:27

http://www.jcraft.com/jsch/import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.Properties;
import java.util.Vector;

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;

public class MySFTP {

public ChannelSftp connect(String host, int port, String username, String password) {
  ChannelSftp sftp = null;
  try {
   JSch jsch = new JSch();
   jsch.getSession(username, host, port);
   Session 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 + ".");
  } catch (Exception e) {

}
return sftp;
}

public void upload(String directory, String uploadFile, ChannelSftp sftp) {
  try {
   sftp.cd(directory);
   File file = new File(uploadFile);
   sftp.put(new FileInputStream(file), file.getName());
  } catch (Exception e) {
   e.printStackTrace();
  }
}

public boolean download(String directory, String downloadFile, String saveFile, ChannelSftp sftp) {
  try {
   sftp.cd(directory);
   File file = new File(saveFile);
   sftp.get(downloadFile, new FileOutputStream(file));
   return true;
  } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (SftpException e) {
            e.printStackTrace();
        }

        return false;
}

public void delete(String directory, String deleteFile, ChannelSftp sftp) {
  try {
   sftp.cd(directory);
   sftp.rm(deleteFile);
  } catch (Exception e) {
   e.printStackTrace();
  }
}

public Vector listFiles(String directory, ChannelSftp sftp) throws SftpException {
return sftp.ls(directory);
}

public static void main(String[] args) {
  MySFTP sf = new MySFTP();
  String host = "ip address";
  int port = 22;
  String username = "******";
  String password = "*******";
  String directory = "/home/develop/data-two/logs";
//  String uploadFile = "D:\\weather\\sfpt";
  String downloadFile = "2016-9-7_results.log";
  String saveFile = "D:\\weather\\sfpt\\bb.log";
//  String deleteFile = "delete.txt";
  ChannelSftp sftp = sf.connect(host, port, username, password);
//  sf.upload(directory, uploadFile, sftp);
  boolean download = sf.download(directory, downloadFile, saveFile, sftp);
  if (download) {
   sftp.disconnect();
   sftp.quit();
  }
//  sf.delete(directory, deleteFile, sftp);
//  try {
//   sftp.cd(directory);
//   sftp.mkdir("ss");
//   System.out.println("finished");
//  } catch (Exception e) {
//   e.printStackTrace();
//  }
}
}

jar下载官网http://www.jcraft.com/jsch/

下载很快的，打开这个网址，再找到download，一眼便看到了

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