SFTP是对ftp进行加密的一种文件协议.
首先是先引入：jsch-0.1.42-sources.jar与jsch-0.1.42.jar包
SFTP文件上传与下载。
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; /**
* sftp文件上传与下载
*
*/ public class SFTPUtil { /**
* 连接sftp服务器
*
* @param host
* 主机
* @param port
* 端口
* @param username
* 用户名
* @param password
* 密码
* @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();
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;
} /**
* 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, File file, ChannelSftp sftp) {
try {
sftp.cd(directory);
sftp.put(new FileInputStream(file), file.getName());
} catch (Exception e) {
e.printStackTrace();
}
} /**
* 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) {
try {
sftp.cd(directory);
File file = new File(saveFile);
sftp.get(downloadFile, new FileOutputStream(file));
} catch (Exception e) {
e.printStackTrace();
}
} /**
* 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) {
try {
sftp.cd(directory);
sftp.rm(deleteFile);
} catch (Exception e) {
e.printStackTrace();
}
} /**
* 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 SftpException {
return sftp.ls(directory);
} public static void main(String[] args) { File file = new File("E:/apache-tomcat-7.0.54/RUNNING.txt");
SFTPUtil sf = new SFTPUtil();
String host = "114.215.119.231";
int port = 22;
String username = "root";
String password = "";
String directory = "/javawork/zmcc";
String uploadFile = "E:/apache-tomcat-7.0.54/RUNNING.txt";
//String downloadFile = "upload.txt";
//String saveFile = "D:\\tmp\\download.txt";
//String deleteFile = "delete.txt";
ChannelSftp sftp = sf.connect(host, port, username, password);
//sf.upload(directory, uploadFile, sftp);
//sf.download(directory, downloadFile, saveFile, sftp);
//sf.delete(directory, deleteFile, sftp);
try {
sftp.cd(directory);
sftp.mkdir("ss");
System.out.println("finished");
//关闭sftp连接
Session session=sftp.getSession();
session.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
}
}