<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>3.3</version>
</dependency>
<dependency>
<groupId>com.jcraft</groupId>
<artifactId>jsch</artifactId>
<version>0.1.54</version>
</dependency>

 

 

 

package cn.test.uploadfile.nas;
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;

 

public class NasUtils {
public static void main(String[] args) throws IOException {
NasUtils client = new NasUtils();
ChannelSftp sftp1 = client.connect("139.196.174.174", 22, "root","zhao1234.");
System.err.println(sftp1);
client.upload("/opt/file", "D:/pic/00000926.jpg", sftp1);
//client.download("/var/", "person1.xml", "D://person12.xml", sftp1);
boolean closed = sftp1.isClosed();
System.err.println(closed);
}




/**
* 连接sftp服务器
* @param host 主机
* @param port 端口
* @param username 服务器用户名
* @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();
Channel channel = sshSession.openChannel("sftp");
channel.connect();
sftp = (ChannelSftp) channel;
System.out.println("登录成功: 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, String uploadFile, ChannelSftp sftp) {
try {
sftp.cd(directory);
File file = new File(uploadFile);
sftp.put(new FileInputStream(file), file.getName());
System.out.println("上传成功！");
} catch (Exception e) {
e.printStackTrace();
} finally {
if(sftp!=null){
sftp.quit();
}
}
}

/**
* 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();
} finally {
if(sftp!=null){
sftp.quit();
}
}
}

/**
* 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();
} finally {
if(sftp!=null){
sftp.quit();
}
}
}

/**
* 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);
}

}