Java running host command - moved from PL/SQL forums

Question

Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
PL/SQL Release 11.1.0.6.0 - Production
CORE 11.1.0.6.0 Production
TNS for HPUX: Version 11.1.0.6.0 - Production
NLSRTL Version 11.1.0.6.0 - Production
Hi,
I am not familiar with Java setting in Oracle
I have a a stored procedure that call a java program to execute host command like
ssh user1@localhost '/home/user1/someprogram'
if we execute this directly using PuTTY
we can do the following with no problem
su - oracle
ssh user1@localhost '/home/user1/someprogram'
but when we execute the stored procedure,
we have to do
*/usr/bin/ssh* user1@localhost '/home/user1/someprogram'
does anybody where to set the path or environment to make the java know the path correctly.
thanks
ps:. this is happen after we recently upgraded our Oracle from 9.2.0.8 to 11.1.0.6

Answer 1

pgoel wrote:
You said,
a stored procedure that call a java program to execute host command like ssh user1@localhost '/home/user1/someprogram'SP -calls> Java Program (JP) -runs> ssh user1@localhost '/home/user1/someprogram'. is that right? I presume locahost is a database server.correct
this is the stored procedure
CREATE OR REPLACE PROCEDURE host_command (p_command  IN  VARCHAR2)
  AS LANGUAGE JAVA
  NAME 'Host.executeCommand (java.lang.String)';and this is the java
create or replace and compile java source named host as
import java.io.*;
public class Host {
  public static void executeCommand(String command) {
    try {
      String[] finalCommand;
      if (isWindows()) {
        finalCommand = new String[4];
        // Use the appropriate path for your windows version.
        finalCommand[0] = "C:\\windows\\system32\\cmd.exe";  // Windows XP/2003
        //finalCommand[0] = "C:\\winnt\\system32\\cmd.exe";  // Windows NT/2000
        finalCommand[1] = "/y";
        finalCommand[2] = "/c";
        finalCommand[3] = command;
      else {
        finalCommand = new String[3];
        finalCommand[0] = "/bin/sh";
        finalCommand[1] = "-c";
        finalCommand[2] = command;
      final Process pr = Runtime.getRuntime().exec(finalCommand);
      pr.waitFor();
      new Thread(new Runnable(){
        public void run() {
          BufferedReader br_in = null;
          try {
            br_in = new BufferedReader(new InputStreamReader(pr.getInputStream()));
            String buff = null;
            while ((buff = br_in.readLine()) != null) {
              System.out.println("Process out :" + buff);
              try {Thread.sleep(100); } catch(Exception e) {}
            br_in.close();
          catch (IOException ioe) {
            System.out.println("Exception caught printing process output.");
            ioe.printStackTrace();
          finally {
            try {
              br_in.close();
            } catch (Exception ex) {}
      }).start();
      new Thread(new Runnable(){
        public void run() {
          BufferedReader br_err = null;
          try {
            br_err = new BufferedReader(new InputStreamReader(pr.getErrorStream()));
            String buff = null;
            while ((buff = br_err.readLine()) != null) {
              System.out.println("Process err :" + buff);
              try {Thread.sleep(100); } catch(Exception e) {}
            br_err.close();
          catch (IOException ioe) {
            System.out.println("Exception caught printing process error.");
            ioe.printStackTrace();
          finally {
            try {
              br_err.close();
            } catch (Exception ex) {}
      }).start();
    catch (Exception ex) {
      System.out.println(ex.getLocalizedMessage());
  public static boolean isWindows() {
    if (System.getProperty("os.name").toLowerCase().indexOf("windows") != -1)
      return true;
    else
      return false;
Where does Java Progarm reside? On the database server filesystem OR within the Database itslef. within the Database itslef.
Edited by: HGDBA on Mar 11, 2011 1:50 PM