通過sftp操作Linux服務器上的文件(java)

下載sftp所需要用到的jar包：com.jcraft.jsch_0.1.31.jar

所用到的文件操作工具類代碼如下：

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;

public class Util {
	/**
	 * 鏈接sftp
	 * 
	 * @param host
	 *            主機
	 * @param port
	 *            端口
	 * @param username
	 *            用戶名
	 * @param password
	 *            密碼
	 * @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創建成功");
			sshSession.setPassword(password);
			Properties sshConfig = new Properties();
			sshConfig.put("StrictHostKeyChecking", "no");
			sshSession.setConfig(sshConfig);
			sshSession.connect();
			System.out.println("Session已連接");
			Channel channel = sshSession.openChannel("sftp");
			channel.connect();
			sftp = (ChannelSftp) channel;
			System.out.println("連接到主機" + host + ".");
		} catch (Exception e) {
			e.printStackTrace();
		}
		return sftp;
	}

	/**
	 * 文件重命名
	 * 
	 * @param directory 目錄
	 * @param oldname 舊文件名	
	 * @param newname 新文件名
	 * @param sftp
	 */
	public void renameFile(String directory, String oldname, String newname,
			ChannelSftp sftp) {
		try {
			sftp.cd(directory);
			sftp.rename(oldname, newname);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * 文件上傳
	 * 
	 * @param directory 目錄
	 * @param uploadFile 要上傳的文件名
	 * @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());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * 文件下載
	 * 
	 * @param directory 目錄
	 * @param downloadFile 要下載文件名
	 * @param saveFile 保持的文件名
	 * @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();
		}
	}

	/**
	 * 文件刪除
	 * 
	 * @param directory 目錄
	 * @param deleteFile 要刪除的文件名
	 * @param sftp
	 */
	public void delete(String directory, String deleteFile, ChannelSftp sftp) {
		try {
			sftp.cd(directory);
			sftp.rm(deleteFile);
			System.out.println("刪除成功");
		} catch (Exception e) {
			System.out.println("刪除失敗");
			e.printStackTrace();
		}
	}

	/**
	 * 列出目錄下的文件
	 * 
	 * @param directory 目錄
	 * @param sftp
	 * @return
	 * @throws SftpException
	 */
	public Vector listFiles(String directory, ChannelSftp sftp)
			throws SftpException {
		return sftp.ls(directory);
	}

}

測試代碼：

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Vector;

import org.junit.Test;

import com.chigo.utils.SFTPUtil;
import com.jcraft.jsch.ChannelSftp;

public class Test01 {
	//建立鏈接
	SFTPUtil sf = new SFTPUtil(); 
	String host = "192.168.130.33";
	int port = 22;
	String username = "root";
	String password = "abc345";
	
	ChannelSftp sftp=sf.connect(host, port, username, password);
	
	@Test
	public void testList() throws Exception{
		String directory = "/usr/local/apache-tomcat-7.0.62/webapps/images/product/Home_appliances/";
		Vector v = sf.listFiles(directory, sftp);
		for(int i = 0;i < sf.listFiles(directory, sftp).size();i++){
			System.out.println(v.get(i));
		}
		List<String> list = new ArrayList<String>();
		
		for(int i = 2;i < sf.listFiles(directory, sftp).size();i++){ 
			list.add(v.get(i).toString().substring(55, v.get(i).toString().length()));
			System.out.println(v.get(i).toString().substring(55, v.get(i).toString().length())); 
		}
		System.out.println(list.toString());
	}
	
	@Test
	public void testUpload(){
		String directory = "/usr/local/apache-tomcat-7.0.62/webapps/images/homeAnimation/";
		sf.upload(directory, "C:/product01.JPG", sftp);
	}
	
	@Test
	public void testRenameFile(){
		String directory = "/usr/local/apache-tomcat-7.0.62/webapps/images/homeAnimation/";
		String oldname = "baobiao1.png";
		String newname = "a.png";
		sf.renameFile(directory, oldname, newname, sftp);
	}
	
	@Test
	public void testDelFile(){
		String directory = "/usr/local/apache-tomcat-7.0.62/webapps/images/homeAnimation/";
		String deleteFile = "baobiao1.png";
		sf.delete(directory, deleteFile, sftp);
	}
}