使用sftp操作远程Linux文件

 

jar 包：

     jsch-0.1.52.jar

    http://central.maven.org/maven2/com/jcraft/jsch/0.1.52/jsch-0.1.52.jar

 

     junit-4.10.jar

     http://central.maven.org/maven2/junit/junit/4.10/junit-4.10.jar

 

 

java代码：

import java.io.File;
import java.io.FileInputStream;
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;

/**
 * @ClassName: Sftp
 * @deprecated: 使用sftp操作远程Linux文件
 * @author 
 * @company 
 * @date 2015-6-4
 * @version V1.0
 */

public class Sftp {


	/**
	 * 连接sftp服务器
	 * 
	 * @param host
	 *            主机
	 * @param port
	 *            端口
	 * @param username
	 *            用户名
	 * @param password
	 *            密码
	 * @return ChannelSftp
	 */
	public ChannelSftp connect(String host, int port, String username,
			String password) throws Exception {
		ChannelSftp sftp = null;
		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 + " success.");
		return sftp;
	}

	/**
	 * 上传文件
	 * 
	 * @param directory
	 *            上传的目录
	 * @param uploadFile
	 *            要上传的文件
	 * @param sftp
	 */
	public void upload(String directory, String uploadFile, ChannelSftp sftp)
			throws Exception {
		sftp.cd(directory);
		File file = new File(uploadFile);
		sftp.put(new FileInputStream(file), file.getName());
		System.out.println("上传成功.");
	}

	/**
	 * 下载文件
	 * 
	 * @param directory
	 *            下载目录
	 * @param downloadFile
	 *            下载的文件
	 * @param saveFile
	 *            存在本地的路径
	 * @param sftp
	 */
	public void download(String directory, String downloadFile,
			String saveFile, ChannelSftp sftp) throws Exception {
		sftp.cd(directory);
		File file = new File(saveFile);
		sftp.get(downloadFile, new FileOutputStream(file));
	}

	/**
	 * 删除文件
	 * 
	 * @param directory
	 *            要删除文件所在目录
	 * @param deleteFile
	 *            要删除的文件
	 * @param sftp
	 */
	public void delete(String directory, String deleteFile, ChannelSftp sftp)
			throws Exception {
		sftp.cd(directory);
		sftp.rm(deleteFile);
	}

	/**
	 * 列出目录下的文件
	 * 
	 * @param directory
	 *            要列出的目录
	 * @param sftp
	 * @return
	 * @throws SftpException
	 */
	public Vector listFiles(String directory, ChannelSftp sftp)
			throws Exception {
		return sftp.ls(directory);
	}
}

 

测试类（使用 junit 4)

import static org.junit.Assert.*;

import java.util.Iterator;
import java.util.Vector;

import org.junit.Test;

import com.jcraft.jsch.ChannelSftp;

/**
 * @ClassName: SftpTest
 * @deprecated: TODO
 * @author 
 * @company 
 * @date 2015-6-4
 * @version V1.0
 */

public class SftpTest {

	private static final String host = "192.168.1.10";
	private static final int port = 22;
	private static final String username = "xxx";
	private static final String password = "xxx";
	private static final String directory = "/usr/local/";

	@Test
	public void connect() {

		/* 测试是否能远程连接linux服务器 */

		Sftp sf = new Sftp();

		ChannelSftp sftp = null;

		try {
			sftp = sf.connect(host, port, username, password);

			System.out.println(sftp.isConnected());

		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (null != sftp) {
				sftp.disconnect();
			}
		}
	}

	@Test
	public void upload() {

		/* 将本地文件上传到服务器指定的目录下 */

		ChannelSftp sftp = null;

		try {
			sftp = this.connectToServer(host, port, username, password);

			if (null != sftp && sftp.isConnected()) {

				String uploadFile = "D:\\shsddata\\SH_20150519_143533_PAS.DT";

				Sftp sf = new Sftp();

				sf.upload(directory, uploadFile, sftp);

				System.out.println("Upload success!");
			}

		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	@Test
	public void download() {

		ChannelSftp sftp = null;

		try {
			sftp = this.connectToServer(host, port, username, password);

			if (null != sftp && sftp.isConnected()) {

				String downloadFile = "SH_SCADA.DT";

				Sftp sf = new Sftp();

				String saveFile = "D:\\shsddata\\SH_SCADA.DT";

				sf.download(directory, downloadFile, saveFile, sftp);

				System.out.println("download '" + downloadFile + "' success!");
			}

		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (null != sftp) {
				sftp.disconnect();
			}
		}
	}

	@Test
	public void delete() {
		fail("Not yet implemented");
	}

	@Test
	public void listFiles() {

		/* 列出指定目录下的所有文件及文件夹 */

		ChannelSftp sftp = null;

		try {
			sftp = this.connectToServer(host, port, username, password);

			if (null != sftp && sftp.isConnected()) {

				String directory = "/opt/tomcat";

				Sftp sf = new Sftp();

				Vector v = sf.listFiles(directory, sftp);

				if (null != v && !v.isEmpty()) {

					Iterator it = v.iterator();

					while (it.hasNext()) {
						System.out.println(it.next().toString());
					}

				} else {
					System.out.println(directory + " no file");
				}
			}

		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (null != sftp) {
				sftp.disconnect();
			}
		}
	}

	private ChannelSftp connectToServer(String host, int port, String username,
			String password) throws Exception {

		Sftp sf = new Sftp();

		ChannelSftp sftp = null;

		try {
			sftp = sf.connect(host, port, username, password);

		} catch (Exception e) {
			throw e;
		}

		return sftp;
	}
}