Java ChannelExec.getInputStream方法代码示例

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
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; //导入方法依赖的package包/类
@Override
public void upload(Path file, String remotePath)
{
    Session session = null;
    try {
        session = createSession();
        LOGGER.info("Uploading {} onto {}@{}:{}:{}", file, session.getUserName(), session.getHost(), session.getPort(), remotePath);
        ChannelExec channel = (ChannelExec) session.openChannel("exec");
        String command = "scp -t " + remotePath;
        channel.setCommand(command);

        OutputStream out = channel.getOutputStream();
        InputStream in = channel.getInputStream();

        sendSCPFile(file, channel, in, out);
    }
    catch (JSchException | IOException exception) {
        Throwables.propagate(exception);
    }
    finally {
        if (session != null) { session.disconnect(); }
    }
}
 

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
@Test(timeout = 5000)
public void testExec(TestContext context) throws Exception {
  startShell();
  Session session = createSession("paulo", "secret", false);
  session.connect();
  ChannelExec channel = (ChannelExec) session.openChannel("exec");
  channel.setCommand("the-command arg1 arg2");
  channel.connect();
  InputStream in = channel.getInputStream();
  StringBuilder input = new StringBuilder();
  while (!input.toString().equals("the_output")) {
    int a = in.read();
    if (a == -1) {
      break;
    }
    input.append((char)a);
  }
  OutputStream out = channel.getOutputStream();
  out.write("the_input".getBytes());
  out.flush();
  while (channel.isConnected()) {
    Thread.sleep(1);
  }
  assertEquals(2, channel.getExitStatus());
  session.disconnect();
}
 

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
@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; //导入方法依赖的package包/类
@Override
public OutputStream scpPut(String remoteFilePath, long length, String mode) throws Throwable {

    open();

    if (!Pattern.matches("\\d{4}", mode)) {
        throw new IllegalArgumentException("Invalid file mode: " + mode);
    }

    String dir = PathUtil.getParentDirectory(remoteFilePath);
    String fileName = PathUtil.getFileName(remoteFilePath);

    // exec 'scp -t -d remoteTargetDirectory' remotely
    String command = "scp -t -d \"" + dir + "\"";
    final ChannelExec channel = (ChannelExec) _jschSession.openChannel("exec");
    ((ChannelExec) channel).setCommand(command);

    // get I/O streams for remote scp
    OutputStream out = channel.getOutputStream();
    final InputStream in = channel.getInputStream();

    channel.connect();

    return new ScpOutputStream(channel, in, out, new FileInfo(mode, length, fileName));

}
 

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
private static String execCommand(Session session, TextStream out, String command) throws JSchException, IOException {
    ChannelExec channel = (ChannelExec) session.openChannel("exec");
    channel.setCommand(command);
    channel.setInputStream(null);
    channel.setErrStream(System.err);

    InputStream in = channel.getInputStream();
    channel.connect();
    BufferedReader br = new BufferedReader(new InputStreamReader(in));
    int count = 0;
    String line = br.readLine();
    StringWriter sw = new StringWriter();
    while (line != null) {
        String info = String.format("%d: %s\n", count++, line);
        sw.append(info);
        out.appendText(info);
        line = br.readLine();
    }
    session.disconnect();
    return sw.toString();
}
 

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
/**
 * Starts the specified command (executable + params) on the specified ExecutionEnvironment.
 *
 * @param env - environment to execute in
 * @param command - executable + params to execute
 * @param params - (optional) channel params. May be null.
 * @return I/O streams and opened execution JSch channel. Never returns NULL.
 * @throws IOException - if unable to aquire an execution channel
 * @throws JSchException - if JSch exception occured
 * @throws InterruptedException - if the thread was interrupted
 */
public static ChannelStreams startCommand(final ExecutionEnvironment env, final String command, final ChannelParams params)
        throws IOException, JSchException, InterruptedException {

    JSchWorker<ChannelStreams> worker = new JSchWorker<ChannelStreams>() {

        @Override
        public ChannelStreams call() throws JSchException, IOException, InterruptedException {
            ChannelExec echannel = (ChannelExec) ConnectionManagerAccessor.getDefault().openAndAcquireChannel(env, "exec", true); // NOI18N

            if (echannel == null) {
                throw new IOException("Cannot open exec channel on " + env + " for " + command); // NOI18N
            }

            echannel.setCommand(command);
            echannel.setXForwarding(params == null ? false : params.x11forward);
            InputStream is = echannel.getInputStream();
            InputStream es = echannel.getErrStream();
            OutputStream os = new ProtectedOutputStream(echannel, echannel.getOutputStream());
            Authentication auth = Authentication.getFor(env);
            echannel.connect(auth.getTimeout() * 1000);
            return new ChannelStreams(echannel, is, es, os);
        }

        @Override
        public String toString() {
            return command;
        }
    };

    return start(worker, env, 2);
}
 

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
/**
 *
 * @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; //导入方法依赖的package包/类
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; //导入方法依赖的package包/类
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;
}
 

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
/**
 * Connect to a remote host via SSH and execute a command.
 * 
 * @param host
 *          Host to connect to
 * @param user
 *          User to login with
 * @param password
 *          Password for the user
 * @param command
 *          Command to execute
 * @return The result of the command execution
 */
private Result executeSshCommand(final String host, final String user,
    final String password, final String command) {
  
  StringBuilder result = new StringBuilder();
  
  try {
    JSch jsch = new JSch();
    Session session = jsch.getSession(user, host, 22);
    session.setUserInfo(createUserInfo(password));
    session.connect(5000);

    ChannelExec channel = (ChannelExec) session.openChannel("exec");
    channel.setCommand(command);
    channel.setInputStream(null);
    channel.setErrStream(System.err);
    InputStream in = channel.getInputStream();

    channel.connect();

    byte[] tmp = new byte[1024];
    while (true) {
      while (in.available() > 0) {
        int i = in.read(tmp, 0, 1024);
        if (i < 0)
          break;
        result.append(new String(tmp, 0, i));
      }
      if (channel.isClosed()) {
        break;
      }
    }
    channel.disconnect();
    session.disconnect();
  } catch (Exception jex) {
    return createResult(Result.Status.ERROR, jex.getMessage());
  }
 
  return createResult(Result.Status.OK, result.toString());
}
 

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
void execute(Session sshSession) throws SshException
{
  InputStream in = null;
  ChannelExec channel = null;
 
  if (command == null)
  {
    throw new IllegalStateException("command attribute of " + 
        this.getClass().getName() + " can't be null.") ;
  }
  
  try
  {
    try
    { 
      channel = this.connectToChannel(sshSession,command);
      in = channel.getInputStream();
      streamOutput(channel,in);
    }
    finally
    {
      if (in != null)
        in.close();
      if (channel != null)
        channel.disconnect();
    }
  }
  catch (Exception e)
  {
    throw new SshException(e);
  }
}
 

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
public void exec(String cmdToRun) throws IOException, JSchException, InterruptedException {
    ChannelExec channelExec = (ChannelExec) remoteClient.getSession().openChannel("exec");

    channelExec.setCommand(cmdToRun);
    channelExec.setInputStream(null);

    InputStream [] inputs = new InputStream [] {channelExec.getInputStream(), channelExec.getExtInputStream(), channelExec.getErrStream()};

    channelExec.connect();
    final long now = System.currentTimeMillis();
    boolean gotResult = false;
    while (!gotResult && System.currentTimeMillis() - now < 1000) {
        for (int i = 0; i < inputs.length; ++i)  {
            InputStream input = inputs[i];
            BufferedReader reader = new BufferedReader(new InputStreamReader(input));
            String line;
            StringBuilder builder = new StringBuilder();
            if (reader.ready()) {
                while ((line = reader.readLine()) != null) {
                    builder.append(line).append("\n");
                }
                gotResult = true;
                System.out.println("Got reply from input#" + i + ":\n" + builder.toString());
                break;
            }
        }
        Thread.sleep(50);
    }

    int exitStatus = channelExec.getExitStatus();
    channelExec.disconnect();
    System.out.println("Executing command exit status: " + exitStatus);
}
 

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
private void write(ChannelExec c, String name, InputStream data, ScpConfiguration cfg) throws IOException {
    OutputStream os = c.getOutputStream();
    InputStream is = c.getInputStream();

    try {
        writeFile(name, data, os, is, cfg);
    } finally {
        IOHelper.close(is, os);
    }
}
 

import com.jcraft.jsch.ChannelExec; //导入方法依赖的package包/类
public int execute(String[] commands, OutputStream stdout, OutputStream stderr) {
    try {
        ChannelExec ch = (ChannelExec) getSession().openChannel(CHANNEL_EXEC);

        String command = buildCommand(commands);

        ch.setCommand(command);
        try {
            InputStream out = ch.getInputStream();
            InputStream err = ch.getErrStream();
            ch.connect();
            if (stdout != null) {
                ByteStreams.copy(out, stdout);
            }
            if (stderr != null) {
                ByteStreams.copy(err, stderr);
            }

            int exitCode;
            while ((exitCode = ch.getExitStatus()) == -1) {
                Thread.sleep(100);
            }

            return exitCode;
        } finally {
            ch.disconnect();
        }

    } catch (Exception e) {
        throw new SshException(e);
    }
}