How to run a unix command remotely using java

 

Download the jar file from ,

http://www.jcraft.com/jsch/

http://nchc.dl.sourceforge.net/project/jsch/jsch.jar/0.1.48/jsch-0.1.48.jar

package test1;
import com.jcraft.jsch.*;
import java.io.*;
public class Class2 {
  public Class2() {
    super();
  }
  public static void main(String[] args) throws Exception {
    testconnect();
  }
      public static void testconnect() throws JSchException, IOException {
           String userName = "xxxx";
           String password ="xxxx";
           String hostName = "xxx.xx.oracle.com";
           int port = 22;
        String sdstestCommand = "env";
              JSch jsch = new JSch();
              Session session = jsch.getSession(userName, hostName, port);
              session.setConfig("StrictHostKeyChecking", "no");
              session.setPassword(password);
              session.connect();    
              ChannelExec channel = (ChannelExec) session.openChannel("exec");
              channel.setCommand(sdstestCommand);
              channel.setInputStream(null);
              ((ChannelExec) channel).setErrStream(System.err);
              InputStream in = channel.getInputStream();
              channel.connect();
              System.out.println("Unix system connected...");
              byte[] tmp = new byte[1024];
              while (true){
                  while (in.available() > 0) {
                      int i = in.read(tmp, 0, 1024);
                      if (i < 0) {
                          break;
                      }
                      String line = new String(tmp, 0, i);
                      System.out.println("Unix system console output: " +line);
                  }
                  if (channel.isClosed()){
                      break;
                  }
                  try {
                      Thread.sleep(1000);
                  } catch (Exception ee){
                      //ignore
                  }
              }
              channel.disconnect();
              session.disconnect();     
          }
    }