java 远程 cmd_java中telnet到远程服务器,然后执行cmd命令

package place.in.javaeye;

import java.io.InputStream;

import java.io.PrintStream;

import org.apache.commons.net.telnet.TelnetClient;

public class Shell

{

private TelnetClient telnet = new TelnetClient();

private InputStream in;

private PrintStream out;

private char prompt = '$';// 普通用户结束

public Shell(String ip, int port, String user, String password)

{

try

{

telnet.connect()(ip, port);

in = telnet.getInputStream();

out = new PrintStream(telnet.getOutputStream());

// 根据root用户设置结束符

this.prompt = user.equals("root") ? '#' : '>';

login(user, password);

}

catch (Exception e)

{

e.printStackTrace();

}

}

/**

* 登录

*

* @param user

* @param password

*/

public void login(String user, String password)

{

// read()Until("login:");

read()Until("login:");

write(user);

read()Until("Password:");

write(password);

readUntil(prompt + "");

}

/**

* 读取分析结果

*

* @param pattern

* @return

*/

public String readUntil(String pattern)

{

try

{

char lastChar = pattern.charAt(pattern.length() - 1);

StringBuffer sb = new StringBuffer();

char ch = (char)in.read();

while (true)

{

sb.append(ch);

if (ch == lastChar)

{

if (sb.toString().endsWith(pattern))

{

return sb.toString();

}

}

ch = (char)in.read();

System.out.print(ch);

}

}

catch (Exception e)

{

e.printStackTrace();

}

return null;

}

/**

* 写操作

*

* @param value

*/

public void write(String value)

{

try

{

out.println(value);

out.flush();

}

catch (Exception e)

{

e.printStackTrace();

}

}

/**

* 向目标发送命令字符串

*

* @param command

* @return

*/

public String sendCommand(String command)

{

try

{

write(command);

return readUntil(prompt + "");

}

catch (Exception e)

{

e.printStackTrace();

}

return null;

}

/**

* 关闭连接

*/

public void disconnect()()

{

try

{

telnet.disconnect()();

}

catch (Exception e)

{

e.printStackTrace();

}

}

public static void main(String[] args) {

TelnetClient telnet = new TelnetClient();

try {

Shell she =new Shell("10.**.***.***", 23, "***", "***");

System.out.println(she);

System.out.println(she.sendCommand("ls"));

she.disconnect();

}catch (Exception e) {

// TODO: handle exception

}

}

}