Java ChannelExec.disconnect方法代碼示例

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
private void createTCPProxy() {
	try {
		final String cleanCommand = String.format("sudo docker ps -a | grep 'hours ago' | awk '{print $1}' | xargs --no-run-if-empty sudo docker rm",
				containerName,
				this.targetHost,
				this.targetPort,
				sourceIPs,
				ImageRegistry.get().tcpProxy());
		LOGGER.info("Establishing SSH shell");
		ssh = SshUtil.getInstance()
				.createSshSession(TestConfiguration.proxyHostUsername(), getProxyHost());
		ssh.connect();
		LOGGER.debug("Connected to ssh console");

		final ChannelExec cleanChannel = (ChannelExec) ssh.openChannel("exec");
		cleanChannel.setPty(true);
		cleanChannel.setCommand(cleanCommand);
		cleanChannel.setInputStream(null);
		cleanChannel.setOutputStream(System.err);

		LOGGER.debug("Executing command: '{}'", cleanCommand);
		cleanChannel.connect();
		cleanChannel.disconnect();

		final String command = String.format("sudo docker run -it --name %s --net=host --rm -e AB_OFF=true -e TARGET_HOST=%s -e TARGET_PORT=%s -e TARGET_VIA=%s %s",
				containerName,
				this.targetHost,
				this.targetPort,
				sourceIPs,
				ImageRegistry.get().tcpProxy());
		LOGGER.info("Establishing SSH shell");
		ssh = SshUtil.getInstance()
				.createSshSession(TestConfiguration.proxyHostUsername(), getProxyHost());
		ssh.connect();
		LOGGER.debug("Connected to ssh console");

		final ChannelExec channel = (ChannelExec) ssh.openChannel("exec");
		channel.setPty(true);
		channel.setCommand(command);
		channel.setInputStream(null);
		channel.setOutputStream(System.err);

		LOGGER.debug("Executing command: '{}'", command);
		channel.connect();
		final LineIterator li = IOUtils.lineIterator(new InputStreamReader(channel.getInputStream()));
		final Pattern portLine = Pattern.compile(".*Listening on port ([0-9]*).*$");
		listenPort = 0;
		while (li.hasNext()) {
			final String line = li.next();
			LOGGER.trace("Shell line: {}", line);
			final Matcher m = portLine.matcher(line);
			if (m.matches()) {
				listenPort = Integer.parseInt(m.group(1));
				LOGGER.info("Connection listening on port {}", listenPort);
				break;
			}
		}
		channel.disconnect();
	} catch (final JSchException | IOException e) {
		LOGGER.debug("Error in creating SSH connection to proxy host", e);
		throw new IllegalStateException("Cannot open SSH connection", e);
	}
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
private boolean executeSSH(){ 
	//get deployment descriptor, instead of this hard coded.
	// or execute a script on the target machine which download artifact from nexus
       String command ="nohup java -jar -Dserver.port=8091 ./work/codebox/chapter6/chapter6.search/target/search-1.0.jar &";
      try{	
   	   System.out.println("Executing "+ command);
          java.util.Properties config = new java.util.Properties(); 
          config.put("StrictHostKeyChecking", "no");
          JSch jsch = new JSch();
          Session session=jsch.getSession("rajeshrv", "localhost", 22);
          session.setPassword("rajeshrv");
          
          session.setConfig(config);
          session.connect();
          System.out.println("Connected");
           
          ChannelExec channelExec = (ChannelExec)session.openChannel("exec");
          InputStream in = channelExec.getInputStream();
          channelExec.setCommand(command);
          channelExec.connect();
         
          BufferedReader reader = new BufferedReader(new InputStreamReader(in));
          String line;
          int index = 0;

          while ((line = reader.readLine()) != null) {
              System.out.println(++index + " : " + line);
          }
          channelExec.disconnect();
          session.disconnect();

          System.out.println("Done!");

      }catch(Exception e){
          e.printStackTrace();
          return false;
      }
	
	return true;
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
/**
 * Convenience method to execute a command on the given remote session, using the given string
 * as part of the error if it fails to run.
 *
 * @param roboRioSession The ssh session of the roboRio
 * @param command        The command to execute
 * @param errorString    The error string to put in the exception if an error occurs. The return
 *                       code will be appended to the end
 * @throws JSchException If an ssh error occurs
 * @throws IOException   Thrown if there is an io error, or if the command fails to run
 */
private void executeCommand(Session roboRioSession, String command, String errorString) throws JSchException, IOException {
    // Extract the JRE
    m_logger.debug("Running command " + command);
    ChannelExec channel = (ChannelExec) roboRioSession.openChannel(EXEC_COMMAND);
    channel.setCommand(command);
    channel.connect();
    int sleepCount = 0;
    // Sleep for up to 10 seconds while we wait for the command to execute, checking every 100 milliseconds
    do {
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
            m_logger.warn("Interrupted exception while waiting for command " + command + " to finish", e);
        }
    } while (!channel.isClosed() && sleepCount++ < 100);

    int res = channel.getExitStatus();
    if (res != SUCCESS) {
        m_logger.debug("Error with command " + command);
        throw new IOException(errorString + " " + res);
    }
    channel.disconnect();
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
/**
 * Force create directories, if it exists it won't do anything
 *
 * @param path
 * @throws IOException
 * @throws RuntimeConfigurationException
 */
private void forceCreateDirectories(@NotNull final String path) throws IOException, RuntimeConfigurationException {
    Session session = connect(ssh.get());
    try {
        ChannelExec channelExec = (ChannelExec) session.openChannel("exec");
        List<String> commands = Arrays.asList(
                String.format("mkdir -p %s", path),
                String.format("cd %s", path),
                String.format("mkdir -p %s", FileUtilities.CLASSES),
                String.format("mkdir -p %s", FileUtilities.LIB),
                String.format("cd %s", path + FileUtilities.SEPARATOR + FileUtilities.CLASSES),
                "rm -rf *"
        );
        for (String command : commands) {
            consoleView.print(EmbeddedLinuxJVMBundle.getString("pi.deployment.command") + command + NEW_LINE, ConsoleViewContentType.SYSTEM_OUTPUT);
        }
        channelExec.setCommand(LinuxCommand.builder().commands(commands).build().toString());
        channelExec.connect();
        channelExec.disconnect();
    } catch (JSchException e) {
        setErrorOnUI(e.getMessage());
    }
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
private void sendSCPFile(Path file, ChannelExec channel, InputStream in, OutputStream out)
        throws IOException, JSchException
{
    channel.connect();
    try {
        checkAck(channel, in);

        sendSCPHandshake(file, out);
        checkAck(channel, in);

        try (InputStream fileStream = newInputStream(file)) {
            ByteStreams.copy(fileStream, out);
        }
        out.write(0);

        out.flush();
        checkAck(channel, in);
    }
    finally {
        channel.disconnect();
    }
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
@SuppressWarnings("resource")
public String exec(String command, InputStream opt) throws JSchException, IOException {
  ChannelExec channel = (ChannelExec) getSession().openChannel("exec");
  try {
    channel.setCommand(command);
    channel.setInputStream(opt);
    InputStream in = channel.getInputStream();
    InputStream err = channel.getErrStream();
    channel.connect();

    Scanner s = new Scanner(err).useDelimiter("\\A");
    error = s.hasNext() ? s.next() : null;

    s = new Scanner(in).useDelimiter("\\A");
    return s.hasNext() ? s.next() : "";
  } finally {
    channel.disconnect();
  }
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
/**
 * Download a file from the remote server into an OutputStream
 *
 * @param remoteFile
 *            Path and name of the remote file.
 * @param localTarget
 *            OutputStream to store the data.
 * @throws IOException
 *             in case of network problems
 * @throws RemoteScpException
 *             in case of problems on the target system (connection ok)
 */
@SuppressWarnings("unused")
public void get(String remoteFile, OutputStream localTarget) throws IOException,
        RemoteScpException {
    ChannelExec channel = null;

    if (remoteFile == null || localTarget == null) {
        throw new IllegalArgumentException("Null argument.");
    }

    String cmd = "scp -p -f " + remoteFile;

    try {
        channel = getExecChannel();
        channel.setCommand(cmd);
        receiveStream(channel, remoteFile, localTarget);
        channel.disconnect();
    } catch (JSchException e) {
        if (channel != null) {
            channel.disconnect();
        }
        throw new IOException("Error during SCP transfer. " + e.getMessage(), e);
    }
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
/**
 * Initiates an SCP sequence but stops after getting fileinformation header
 *
 * @param remoteFile
 *            to get information for
 * @return the file information got
 * @throws IOException
 *             in case of network problems
 * @throws RemoteScpException
 *             in case of problems on the target system (connection ok)
 */
public FileInfo getFileinfo(String remoteFile) throws IOException, RemoteScpException {
    ChannelExec channel = null;
    FileInfo fileInfo = null;

    if (remoteFile == null) {
        throw new IllegalArgumentException("Null argument.");
    }

    String cmd = "scp -p -f \"" + remoteFile + "\"";

    try {
        channel = getExecChannel();
        channel.setCommand(cmd);
        fileInfo = receiveStream(channel, remoteFile, null);
        channel.disconnect();
    } catch (JSchException e) {
        throw new IOException("Error during SCP transfer. " + e.getMessage(), e);
    } finally {
        if (channel != null) {
            channel.disconnect();
        }
    }
    return fileInfo;
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
protected String exec(String command) {
    final ChannelExec channel = openChannel(command);
    final String res;
    try {
        final InputStream in = getInputStream(channel);
        connect(channel);
        res = readOutput(command, channel, in);
    } finally {
        try {
            if (channel.isConnected()) channel.disconnect();
        } catch (Exception e) {
            log.warn("failed to disconnect channel", e);
        }
    }
    return res;
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
private void executeCommand(Session session,CommandInfo commandInfo, CommandOutput commandOutput) throws GFacException {
        String command = commandInfo.getCommand();
        ChannelExec channelExec = null;
        try {
            if (!session.isConnected()) {
//                session = getOpenSession();
                log.error("Error! client session is closed");
                throw new JSchException("Error! client session is closed");
            }
            channelExec = ((ChannelExec) session.openChannel("exec"));
            channelExec.setCommand(command);
            channelExec.setInputStream(null);
            channelExec.setErrStream(commandOutput.getStandardError());
            log.info("Executing command {}", commandInfo.getCommand());
            channelExec.connect();
            commandOutput.onOutput(channelExec);
        } catch (JSchException e) {
            throw new GFacException("Unable to execute command - ", e);
        }finally {
            //Only disconnecting the channel, session can be reused
            if (channelExec != null) {
                commandOutput.exitCode(channelExec.getExitStatus());
                channelExec.disconnect();
            }
        }
    }
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
private static void cleanup(ChannelExec exec) {
  if (exec != null) {
    try {
      exec.disconnect();
    } catch (Throwable t) {
      LOG.warn("Couldn't disconnect ssh channel", t);
    }
  }
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
/**
 *
 * @param command SSH command to execute
 * @return the exit code
 */
public int execute(
                    String command,
                    boolean waitForCompletion ) {

    try {
        this.command = command;

        execChannel = (ChannelExec) session.openChannel("exec");

        execChannel.setCommand(command);
        execChannel.setInputStream(null);
        execChannel.setPty(true); // Allocate a Pseudo-Terminal. Thus it supports login sessions. (eg. /bin/bash -l)

        execChannel.connect(); // there is a bug in the other method channel.connect( TIMEOUT );

        stdoutThread = new StreamReader(execChannel.getInputStream(), execChannel, "STDOUT");
        stderrThread = new StreamReader(execChannel.getErrStream(), execChannel, "STDERR");
        stdoutThread.start();
        stderrThread.start();

        if (waitForCompletion) {

            stdoutThread.getContent();
            stderrThread.getContent();
            return execChannel.getExitStatus();
        }

    } catch (Exception e) {

        throw new JschSshClientException(e.getMessage(), e);
    } finally {

        if (waitForCompletion && execChannel != null) {
            execChannel.disconnect();
        }
    }

    return -1;
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
public int executeCommand(boolean setPty, String command, CommandResultConsumer consumer) {
	Session ssh = SshUtil.getInstance().createSshSession(username, hostname);
	int resultCode = 255;

	try {
		ssh.connect();
		LOGGER.debug("Connected to ssh console");
		ChannelExec channel = (ChannelExec) ssh.openChannel("exec");
		channel.setPty(setPty);
		channel.setCommand(command);
		channel.setInputStream(null);
		channel.setOutputStream(System.err);

		LOGGER.debug("Executing command: '{}'", command);
		channel.connect();
		try {
			if (consumer != null) {
				consumer.consume(channel.getInputStream());
			}
		} catch (IOException ex) {
			throw new RuntimeException("Unable to read console output", ex);
		} finally {
			channel.disconnect();
		}
		resultCode = channel.getExitStatus();
	} catch (JSchException x) {
		LOGGER.error("Error SSH to " + username + "@" + hostname, x);
	} finally {
		ssh.disconnect();
	}

	return resultCode;
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
public StringPair executeCmd(String USERNAME,String PASSWORD,String host,String command)
{
	StringPair result = new StringPair();
	try
	{
		JSch jsch = new JSch();
		Session session = jsch.getSession(USERNAME, host, port);
		session.setConfig("StrictHostKeyChecking", "no");
		session.setPassword(PASSWORD);
		session.connect();
		ChannelExec channelExec = (ChannelExec)session.openChannel("exec");
		InputStream in = channelExec.getInputStream();
		channelExec.setCommand(command);
		channelExec.connect();
		BufferedReader reader = new BufferedReader(new InputStreamReader(in));
		//while((line = reader.readLine()) != null)
		result.hostName = reader.readLine();
		result.ip=reader.readLine();
		reader.close();
		int exitStatus = channelExec.getExitStatus();
		channelExec.disconnect();
		session.disconnect();
		if(exitStatus < 0){
			System.out.println("Done, but exit status not set!");
		}
		else if(exitStatus > 0){
			System.out.println("Done, but with error!");
		}
		else{
			System.out.println("Done!");
		}
		return result;
	}
	catch(Exception e)
	{
		System.err.println("Error: " + e);
		return result;
	}
}
 

import com.jcraft.jsch.ChannelExec; //導入方法依賴的package包/類
private SSHCommand execCmd(SSHCommand cmd) throws JSchException, IOException {
    Log.d("-------", "COMMAND: "+cmd.getCommand());

    ChannelExec channel = (ChannelExec) currSSHSess.openChannel("exec");
    channel.setCommand(cmd.getCommand());
    channel.setInputStream(null);

    final InputStream
            in = channel.getInputStream(),
            err = channel.getErrStream();
    channel.connect();

    final BufferedReader
            readerIn = new BufferedReader(new InputStreamReader(in)),
            readerEr = new BufferedReader(new InputStreamReader(err));

    final StringBuilder
            errStr = new StringBuilder(),
            inStr  = new StringBuilder();

    String line;

    while ((line = readerIn.readLine()) != null) {
        inStr.append(line).append('\n');
        progress(line + "\n");
    }

    while ((line = readerEr.readLine()) != null) {
        errStr.append(line).append('\n');
        progress(line + "\n");
    }

    channel.disconnect();

    cmd.setCmdOut(inStr.toString());
    cmd.setErrorOut(errStr.toString());

    return cmd;
}