maverick2 java_J2SSH Maverick 一段连接sftp服务器,上传,下载的代码:

J2SSH Maverick

Version 1.2.6 一段连接sftp服务器,上传,下载的代码:

import com.maverick.ssh.*;

import com.maverick.ssh1.Ssh1Client;

import com.maverick.ssh2.*;

import java.io.*;

import com.sshtools.net.*;

import com.sshtools.sftp.*;

import com.maverick.sftp.*;

import com.sshtools.publickey.ConsoleKnownHostsKeyVerification;

/**

* This example demonstrates the connection process connecting to an SSH2 server and

* usage of the SFTP client.

*

* @author Lee David Painter

* @version $Id: SftpConnect.java,v 1.8 2006/01/30 17:46:04 lee Exp $

*

*/

public class SftpConnect {

public static void main(String[] args) {

final BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

String str = "user.home";

try {

System.out.print("Hostname: ");

// String hostname = reader.readLine();

String hostname = "192.168.1.237";

int idx = hostname.indexOf(':');

int port = 22;

if(idx > -1) {

port = Integer.parseInt(hostname.substring(idx+1));

hostname = hostname.substring(0, idx);

}

System.out.print("Username [Enter for " + System.getProperty("user.name") + "]: ");

//String username = reader.readLine();

String username = "linuxborder";

if(username==null || username.trim().equals(""))

username = System.getProperty("user.name");

System.out.println("Connecting to " + hostname);

/**

* Create an SshConnector instance

*/

SshConnector con = SshConnector.getInstance();

// Lets do some host key verification

con.getContext(SshConnector.SSH2).setHostKeyVerification(new ConsoleKnownHostsKeyVerification());

// Set the preferred cipher to AES for best transfer performance

Ssh2Context ssh2Context = (Ssh2Context)con.getContext(SshConnector.SSH2);

ssh2Context.setPreferredPublicKey(Ssh2Context.PUBLIC_KEY_SSHDSS);

ssh2Context.supportedCiphers().add("aes128-cbc", com.sshtools.cipher.AES128Cbc.class);

ssh2Context.setPreferredCipherCS("aes128-cbc");

ssh2Context.setPreferredCipherSC("aes128-cbc");

/**

* Connect to the host

*/

SocketTransport t = new SocketTransport(hostname, port);

t.setTcpNoDelay(true);

SshClient ssh = con.connect(t, username);

/**

* Determine the version

*/

if(ssh instanceof Ssh1Client) {

System.out.println(hostname + " is an SSH1 server!! SFTP is not supported");

ssh.disconnect();

System.exit(0);

}

else

System.out.println(hostname + " is an SSH2 server");

Ssh2Client ssh2 = (Ssh2Client)ssh;

/**

* Authenticate the user using password authentication

*/

com.maverick.ssh.PasswordAuthentication pwd = new com.maverick.ssh.PasswordAuthentication();

do {

System.out.print("Password: ");

pwd.setPassword("linuxborder");

// pwd.setPassword(reader.readLine());

}

while(ssh2.authenticate(pwd)!=SshAuthentication.COMPLETE

&& ssh.isConnected());

/**

* Start a session and do basic IO

*/

if(ssh.isAuthenticated()) {

SftpClient sftp = new SftpClient(ssh2);

System.out.println("******************************************");

System.out.println(" sftp.pwd() " +sftp.pwd());

sftp.mkdir("netsky");

System.out.println(" sftp.pwd() " +sftp.getAbsolutePath("netsky"));

sftp.cd("netsky");

/**

* Perform some text mode operations

*/

sftp.setTransferMode(SftpClient.MODE_TEXT);

File textFile = new File(System.getProperty("user.home"), "shining.txt");

FileOutputStream tout = new FileOutputStream(textFile);

// Create a file with /r/n as EOL

for(int i=0;i<5;i++) {

tout.write("All work and no play makes Jack a dull boy/r/n".getBytes());

}

tout.close();

// Tell the client which EOL the remote client is using - note

// that this will be ignored with version 4 of the protocol

sftp.setRemoteEOL(SftpClient.EOL_LF);

// Now put the file, the remote file should end up with all /r/n changed to /n

sftp.put(textFile.getAbsolutePath());

/**

* Now perform some binary operations

*/

sftp.setTransferMode(SftpClient.MODE_BINARY);

/**

* List the contents of the directory

*/

SftpFile[] ls = sftp.ls();

for(int i=0;i

System.out.println(ls[i].toString());

System.out.println(SftpClient.formatLongname(ls[i]));

}

/**

* Generate a temporary file for uploading/downloading

*/

File f = new File(System.getProperty(str), "sftp-file");

java.util.Random rnd = new java.util.Random();

FileOutputStream out = new FileOutputStream(f);

byte[] buf = new byte[1024];

for(int i=0;i<30;i++) {

rnd.nextBytes(buf);

out.write(buf);

}

out.close();

/**

* Create a directory

*/

sftp.mkdirs("sftp/test-files");

/**

* Change directory

*/

sftp.cd("sftp/test-files");

/**

* Put a file into our new directory

*/

long length = f.length();

System.out.println("Putting file");

long t1 = System.currentTimeMillis();

sftp.put(f.getAbsolutePath());

long t2 = System.currentTimeMillis();

System.out.println("Completed.");

long e = t2-t1;

System.out.println("Took " + String.valueOf(e) + " milliseconds");

float secs, kbs;

if(e >= 1000) {

kbs = ((float)length / 1024) / ((float)e / 1000);

System.out.println("Upload Transfered at " + String.valueOf(kbs) +

" kbs");

}

/**

* Get the attributes of the uploaded file

*/

System.out.println("Getting attributes of the remote file");

SftpFileAttributes attrs = sftp.stat(f.getName());

System.out.println(SftpClient.formatLongname(attrs, f.getName()));

/**

* Download the file inot a new location

*/

File f2 = new File(System.getProperty(str), "downloaded");

f2.mkdir();

sftp.lcd(f2.getAbsolutePath());

System.out.println("Getting file");

t1 = System.currentTimeMillis();

sftp.get(f.getName());

t2 = System.currentTimeMillis();

System.out.println("Completed.");

e = t2-t1;

System.out.println("Took " + String.valueOf(e) + " milliseconds");

if(e >= 1000) {

kbs = ((float)length / 1024) / ((float)e / 1000);

System.out.println("Download Transfered at " + String.valueOf(kbs) +

" kbs");

}

/**

* Set the permissions on the file and check they were changed

* they should be -rw-r--r--

*/

sftp.chmod(0644, f.getName());

attrs = sftp.stat(f.getName());

System.out.println(SftpClient.formatLongname(attrs, f.getName()));

System.out.println("******************************************");

System.out.println(" sftp.pwd() " + sftp.pwd());

sftp.quit();

ssh.disconnect();

}

} catch(Throwable th) {

th.printStackTrace();

}

}

}

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