자바 nas 서버 파일 업로드, 다운로드

package com.neu.es;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
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;
/**
 * 
 *     ：ed_system    
 *    ：NasUtils    
 *    ：    
 *    ：pan.cx    
 *     ：2015 9 16    9:31:30    
 *    ：pan.cx    
 *     ：2015 9 16    9:31:30    
 *     ：    
 * @version     
 *
 */
public class NasUtils {
	public static void main(String[] args) throws IOException {
		NasUtils client = new NasUtils();
		ChannelSftp sftp1 = client.connect("192.168.12.104", 22, "root","1qaz@WSX");
		System.err.println(sftp1);
		client.upload("/var/", "D://person1.xml", sftp1);
		//client.download("/var/", "person1.xml", "D://person12.xml", sftp1);
		boolean closed = sftp1.isClosed();
		System.err.println(closed);
	}




	 /**
	  *   sftp   
	  * @param host   
	  * @param port   
	  * @param username       
	  * @param password   
	  * @return
	  */
	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();
			Channel channel = sshSession.openChannel("sftp");
			channel.connect();
			sftp = (ChannelSftp) channel;
			System.out.println("    : Connected to " + host + ".");
		} catch (Exception e) {
			
		}
		return sftp;
	}

	 /**
	  *     
	  * @param directory      
	  * @param uploadFile       
	  * @param 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());
			System.out.println("    ！");
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if(sftp!=null){
				sftp.quit();
			}
		}
	}

	 /**
	  *     
	  * @param directory     
	  * @param downloadFile      
	  * @param saveFile        
	  * @param sftp
	  */
	public void download(String directory, String downloadFile,
			String saveFile, ChannelSftp sftp) {
		try {
			sftp.cd(directory);
			File file = new File(saveFile);
			sftp.get(downloadFile, new FileOutputStream(file));
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if(sftp!=null){
				sftp.quit();
			}
		}
	}

	 /**
	  *     
	  * @param directory          
	  * @param deleteFile       
	  * @param sftp
	  */
	public void delete(String directory, String deleteFile, ChannelSftp sftp) {
		try {
			sftp.cd(directory);
			sftp.rm(deleteFile);
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if(sftp!=null){
				sftp.quit();
			}
		}
	}

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

}