JAVA实现SFTP实例(JSCH)

JAVA实现SFTP实例

最近写的一个JAVA实现SFTP的实例：

/*
* Created on 2009-9-14
* Copyright 2009 by www.xfok.net. All Rights Reserved
*
*/

package net.xfok.ftp;

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;

/**
* @author YangHua
* 转载请注明出处：http://www.xfok.net/2009/10/124485.html
*/
public class MySFTP {

/**
* 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, 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();
}
}

/**
* 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) {
MySFTP sf = new MySFTP();
String host = "192.168.0.1";
int port = 22;
String username = "root";
String password = "root";
String directory = "/home/httpd/test/";
String uploadFile = "D:\\tmp\\upload.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");
}catch(Exception e){
e.printStackTrace();
}
}
}

转载请注明出处：http://www.xfok.net/2009/10/124485.html

 ================

使用Jsch实现文件上传

---

2009-04-12 22:34:41

　标签：Jsch 文件上传 Sftp　　　[推送到技术圈]

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使用Jsch可以很容易地实现sftp文件上传。具体代码如下： import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.ArrayList; import java.util.List; 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.JSchException; import com.jcraft.jsch.Session; import com.jcraft.jsch.SftpException;   public class SftpHelper extends Thread {  private String host;  private String username;  private String password;  private String location;  private int port;  private String knowHosts;  private String osName;  private List filenames = new ArrayList();  public SftpHelper(String host, String username, String password, int port) {   this(host, username, password, port, "");  }  public SftpHelper(String host, String username, String password, int port,    String location) {   this.host = host;   this.username = username;   this.password = password;   this.port = port;   osName = System.getProperty("os.name");   System.out.println(osName);   if (osName.toUpperCase().indexOf("WINDOWS") > -1) {    //Windows OS   } else {    //Linux OS   }   this.location = location;  }  public void addFilename(String filename) {   filenames.add(filename);  }  public void setFilenames(List filenames) {   this.filenames = filenames;  }  public void run() {   upload();  }  /**   * 要上传的文件必须包含完整的路径   *   */  public boolean upload() {   if (filenames.size() == 0)    return false;   Session session;   Channel channel;   JSch jsch = new JSch();   try {    session = jsch.getSession(username, host, port);    session.setPassword(password);    Properties prop = new Properties();    prop.setProperty("StrictHostKeyChecking", "no");// StrictHostKeyChecking:    // ask | yes | no    session.setConfig(prop);    session.connect();    channel = session.openChannel("sftp");    channel.connect();    ChannelSftp c = (ChannelSftp) channel;    c.cd(location);    InputStream in = null;    OutputStream out = null;    for (int i = 0; i < filenames.size(); i++) {     String filename = filenames.get(i);     if (filename == null || "".equals(filename)) {      // 当前没有要上传的文件      System.out.println("当前没有要上传的文件");      continue;     }     int idx = filename.lastIndexOf(File.separator);     String uploadname = filename.substring(idx == -1 ? 0 : idx + 1);     System.out.println(uploadname);     out = c.put(uploadname);     sleep(5000);     in = new FileInputStream(filename);     byte[] b = new byte[1024];     int n;     while ((n = in.read(b)) != -1) {      out.write(b);     }    }    out.flush();    out.close();    in.close();    c.disconnect();    session.disconnect();    sleep(500);    return true;   } catch (JSchException e) {    System.out.println("JSchException");    e.printStackTrace();   } catch (SftpException e) {    System.out.println("SftpException");    e.printStackTrace();   } catch (IOException e) {    System.out.println("IOException");    e.printStackTrace();   } catch (InterruptedException e) {    System.out.println("InterruptedException");    e.printStackTrace();   }   return false;  }  public static void main(String[] args) {   String username = "kary";   String host = "localhost";   int port = 22;   String password = "123";   String path = "/sftphelper/";   SftpHelper helper = new SftpHelper(host, username, password, port, path);   helper.addFilename("D:\\a.txt");   helper.addFilename("D:\\b.txt");   helper.start();  } } 附件中有一个Jsch包，和一个mini-sftp-server。