Ganymed SSH2 模拟putty远程交互式执行命令工具

接着上篇http://blog.csdn.net/doctor_who2004/article/details/47322105的介绍：

我们模拟下putty这类交互式的执行远程命令：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.nio.charset.StandardCharsets;
import java.util.Scanner;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.Session;
import ch.ethz.ssh2.StreamGobbler;

/**
 * 模拟交互式终端
 * 
 * @author doctor
 *
 * @time 2015年8月6日  
 *
 * @see http://www.programcreek.com/java-api-examples/index.php?api=ch.ethz.ssh2.SCPClient
 *
 */
public final class SSHAgent2 {
	private Logger log = LoggerFactory.getLogger(getClass());
	private Connection connection;
	private Session session;
	private BufferedReader stdout;
	private PrintWriter printWriter;
	private BufferedReader stderr;
	private ExecutorService service = Executors.newFixedThreadPool(3);
	private Scanner scanner = new Scanner(System.in);

	public void initSession(String hostName, String userName, String passwd) throws IOException {
		connection = new Connection(hostName);
		connection.connect();

		boolean authenticateWithPassword = connection.authenticateWithPassword(userName, passwd);
		if (!authenticateWithPassword) {
			throw new RuntimeException("Authentication failed. Please check hostName, userName and passwd");
		}
		session = connection.openSession();
		session.requestDumbPTY();
		session.startShell();
		stdout = new BufferedReader(new InputStreamReader(new StreamGobbler(session.getStdout()), StandardCharsets.UTF_8));
		stderr = new BufferedReader(new InputStreamReader(new StreamGobbler(session.getStderr()), StandardCharsets.UTF_8));
		printWriter = new PrintWriter(session.getStdin());
	}

	public void execCommand() throws IOException {
		service.submit(new Runnable() {

			@Override
			public void run() {
				String line;
				try {
					while ((line = stdout.readLine()) != null) {
						System.out.println(line);
					}
				} catch (IOException e) {
					e.printStackTrace();
				}

			}
		});

		service.submit(new Runnable() {

			@Override
			public void run() {
				while (true) {
					try {
						TimeUnit.SECONDS.sleep(1);
					} catch (InterruptedException e) {

						e.printStackTrace();
					}
					System.out.print("input:");
					String nextLine = scanner.nextLine();
					printWriter.write(nextLine + "\r\n");
					printWriter.flush();
				}

			}
		});

	}

	public void close() {
		IOUtils.closeQuietly(stdout);
		IOUtils.closeQuietly(stderr);
		IOUtils.closeQuietly(printWriter);
		IOUtils.closeQuietly(scanner);
		session.close();
		connection.close();
	}

	/**
	 * @param args
	 * @throws IOException
	 */
	public static void main(String[] args) throws IOException {
		SSHAgent2 sshAgent = new SSHAgent2();
		sshAgent.initSession("127.0.0.1", "doctor", "xxxx");

		sshAgent.execCommand();

		// sshAgent.close();

	}

}

这里读写流我分别在不同线程下操作，防止读写流之间的阻塞，简单模拟交互环境。当然，登陆的是本地系统，没有安装虚拟机等。

执行结果：

Last login: Thu Aug  6 20:18:52 2015 from 127.0.0.1

input:pwd;
[doctor@localhost ~]$ pwd;
/home/doctor
[doctor@localhost ~]$ 
input:ll
[doctor@localhost ~]$ ll
总用量 2013760
drwxrwxr-x.  3 doctor doctor      4096 7月  27 21:58 android-sdk_r24.3.3-linux
-rw-rw-r--.  1 doctor doctor 309109716 7月  26 17:05 android-sdk_r24.3.3-linux.tgz
drwxrwxr-x.  7 doctor doctor      4096 7月  29 00:04 android-studio
-rw-rw-r--.  1 doctor doctor 258628239 7月  26 17:01 android-studio-ide-141.1980579-linux.zip
drwxrwxr-x.  3 doctor doctor      4096 7月   5 09:48 app
drwxrwxr-x.  7 doctor doctor      4096 8月   4 22:11 Documents
drwxrwxr-x. 21 doctor doctor      4096 8月   2 21:22 git
drwxrwxr-x.  3 doctor doctor      4096 6月  14 12:03 ideaIU-14.1.3
-rw-rw-r--.  1 doctor doctor 308609842 6月  13 13:36 ideaIU-14.1.3.tar.gz
drwxrwxr-x. 11 doctor doctor      4096 7月  26 12:26 jstorm-0.9.6.3
-rw-rw-r--.  1 doctor doctor  11113536 6月   8 21:19 jstorm-0.9.6.3.zip
drwxrwxr-x.  7 doctor doctor      4096 7月  23 21:24 node_modules
-rw-rw-r--.  1 doctor doctor  20063992 7月  11 11:49 node-v0.12.7.tar.gz
drwxrwxrwx. 18 doctor doctor      4096 8月   2 18:10 opt
-rw-rw-r--.  1 doctor doctor    466053 7月  28 20:05 pljava-x86_64-unknown-linux-gnu-pg9.1-1.4.3.tar.gz
-rwxrwxrwx.  1 doctor doctor    155693 7月  24 21:58 plv8-1.4.4.tar.gz
drwxrwxr-x.  3 doctor doctor      4096 7月  27 23:33 pycharm-professional-4.5.3
-rwxrwxrwx.  1 doctor doctor 160688951 7月  27 22:38 pycharm-professional-4.5.3.tar.gz
drwxrwxr-x.  3 doctor doctor      4096 7月  27 23:35 PycharmProjects
drwxrwxr-x.  3 doctor doctor      4096 6月   9 19:08 spring-tool-suite-3.6.4.RELEASE-e4.4.2-linux-gtk-x86_64
-rwxrwxrwx.  1 doctor doctor 417016357 6月   8 22:13 spring-tool-suite-3.6.4.RELEASE-e4.4.2-linux-gtk-x86_64.tar.gz
drwxrwxr-x.  3 doctor doctor      4096 7月   3 21:14 spring-tool-suite-3.7.0.RELEASE-e4.5-linux-gtk-x86_641
-rwxrwxrwx.  1 doctor doctor 429456394 7月   3 13:20 spring-tool-suite-3.7.0.RELEASE-e4.5-linux-gtk-x86_641.tar.gz
drwxrwxr-x.  8 doctor doctor      4096 7月  23 22:08 tmp
drwxrwxr-x. 10 doctor doctor      4096 11月 12 2014 v8-3.31.1
-rw-rw-r--.  1 doctor doctor  16423158 7月  25 00:28 v8-3.31.1.tar.gz
drwxrwxr-x.  3 doctor doctor      4096 6月   8 20:49 WebStorm-10.0.3
-rw-rw-r--.  1 doctor doctor 130207806 6月   8 20:04 WebStorm-10.0.3.tar.gz
drwxrwxr-x.  5 doctor doctor      4096 7月  29 19:51 WebstormProjects
drwxrwxr-x.  5 doctor doctor      4096 9月  25 2014 zookeeper
drwxrwxr-x.  3 doctor doctor      4096 8月  13 2014 壁纸
drwxr-xr-x.  2 doctor doctor      4096 7月  26 17:00 图片
drwxr-xr-x.  2 doctor doctor      4096 7月  30 23:34 文档
drwxr-xr-x.  2 doctor doctor      4096 8月   5 21:47 下载
drwxr-xr-x.  2 doctor doctor      4096 6月   7 21:44 桌面
[doctor@localhost ~]$ 
input:who
[doctor@localhost ~]$ who
doctor   pts/1        2015-08-06 20:28 (127.0.0.1)
[doctor@localhost ~]$ 
input:who am i
[doctor@localhost ~]$ who am i
doctor   pts/1        2015-08-06 20:28 (127.0.0.1)
[doctor@localhost ~]$ 
input:date
[doctor@localhost ~]$ date
2015年 08月 06日 星期四 20:29:18 CST
[doctor@localhost ~]$ 
input: