/* 
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*/
Package demo; 

import java.io.IOException; 
The import ch. Ethz. An ssh2. Connection; 
The import ch. Ethz. An ssh2. Session; 
The import ch. Ethz. An ssh2. StreamGobbler; 
import java.io.BufferedReader; 
import java.io.InputStream; 
import java.io.InputStreamReader; 

/* 
@ the author: Liu Yuanyuan 
Purpose: to test connecting remote computer and execute Linux command 
*/

Public class Linux {

Public static void main (String [] args) {

String hostname="194.168.7.61"; 
String username="root"; 
String password="root"; 
//specify the IP address of the connection between a host 
The Connection conn=new Connection (hostname); 
The Session SSH=null; 
Try {
//connected to the host 
Conn. The connect (); 
//use the user name and password check 
Boolean isconn=conn. AuthenticateWithPassword (username, password); 
if (! Isconn) 
{
System. The out. Println (" the user name or password is not correct "); 
} 
The else 
{
System. The out. Println (" already connected OK "); 
SSH=conn. OpenSession (); 
SSH. ExecCommand (" su - oracle; Up sqlplus/nolog "); 
//SSH. ExecCommand (" perl/root/hello. Pl "); 
//only allows you to use a line command, namely SSH object can be used only once execCommand this way, 
//used multiple times will be abnormal 
//use multiple command with a semicolon 
//SSH. ExecCommand (" CD/root; Sh hello. Sh "); 

//all the text on the Terminal screen printed 
InputStream is=new StreamGobbler (SSH getStdout ()); 
BufferedReader BRS=new BufferedReader (new InputStreamReader (is)); 
While (true) 
{
The String line=BRS. ReadLine (); 
If (line==null) 
{
break; 
} 
System. The out. Println (line); 
} 
} 

} the catch (IOException e) 
{
e.printStackTrace(); 
} the finally 
{
//connect Session and Connection object needs to be shut down 
SSH. The close (); 
conn.close(); 
} 

} 

}