URGENT:- Running a batch file from java program

Author: pkanury
I am trying to execute a batch file from my java program using RunTime and Process . It can execute any dos command except for a batch file. Can anyone throw
some light ?? My code looks like this .....
cmd = "command.com /c X:\\grits\\scripts\\test.bat"; Runtime rt = Runtime.getRuntime(); Process p = rt.exec(cmd);
The weird part is that p.waitFor() returns a status of 0 implying that the cmd has been executed successfully. But that is not the case. And my batch file is as simple as - type "ADADA" > junk.txt
Any help would be appreciated.

I think it should work when you use a String[] array
instead of a single String:
String[] cmd = { "command.com", "/C", "D:\\batch\\do.bat" };
Note: If the batchfile creates any output (i.e. files),
they will be stored in the directory of the application
which calls the batch file, not in d:\batch\...

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Calling batch file from java Program

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Not without a lot more information. Like for example how you are trying to execute this remote batch file, the code you are using to do that, what kind of server you have no the remote machine to let you remotely execute code, and so on.

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Greetings
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what about running "cmd.exe /k script.bat"

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Hi,
I want to run a batch file from my Java program like this:
try {
Process proc = Runtime.getRuntime().exec("C:\\Refresh.bat");
catch (Exception e) {
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Refresh.bat file contains two commands.
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From the FAQ:
2. How do you launch an external program on a Microsoft Windows platform from a program developed on the Java [tm] programming language?
The following will launch notepad in Microsoft Windows NT:
Runtime.getRuntime().exec("cmd /c notepad.exe");
To launch a program in Microsoft Windows 95/98 use:
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The Runtime class allows interaction between a program and its environment. The first string command instructs the command line interpretor, cmd to open up the calculator application.
The exec() methods do not use a shell; any arguments must have the full pathname to the shell as well as the command itself.
For example, to run a shell on the UNIX� platform, type:
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Process p = rt.exec("/usr/bin/sh -c date");
To run a batch file under Microsoft Windows 95/98:
Process p = rt.exec("command.com /c c:\\mydir\\myfile.bat");
To run a batch file under Microsoft Windows NT:
Process p = rt.exec("cmd /c c:\\mydir\\myfile.bat");
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regards,
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Running a batch file in Java. Urgent!!

I want to run a batch file present at a particular location in Java.Although I am running two codes suggested by many people, i am still not able to run the batch file. My codes run as below :-
CODE 1
Process P;
Runtime rt = Runtime.getRuntime();
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CODE 2
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i want to get more than one command prompt while running the program
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import java.io.*;
class CmdDemo
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new CmdDemo("cmd");
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here am getting two notepads ,two registry editors
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i would be very greateful if u could help me
plz reply to my id [email protected] too

Executing batch file from Java stored procedure hang

Dears,
I'm using the following code to execute batch file from Java Stored procedure, which is working fine from Java IDE JDeveloper 10.1.3.4.
public static String runFile(String drive)
String result = "";
String content = "echo off\n" + "vol " + drive + ": | find /i \"Serial Number is\"";
try {
File directory = new File(drive + ":");
File file = File.createTempFile("bb1", ".bat", directory);
file.deleteOnExit();
FileWriter fw = new java.io.FileWriter(file);
fw.write(content);
fw.close();
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The above code is used in getting the volume of a drive on windows, something like "80EC-C230"
I gave the SYSTEM schema the required privilege to execute the code.
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EXEC DBMS_JAVA.grant_permission('SYSTEM', 'SYS:java.lang.RuntimePermission', 'writeFileDescriptor', '');
EXEC DBMS_JAVA.grant_permission('SYSTEM', 'SYS:java.lang.RuntimePermission', 'readFileDescriptor', '');
GRANT JAVAUSERPRIV TO SYSTEM;
I have used the following to load the class in Oracle 9ir2 DB:
loadjava -u [system/******@orcl|mailto:system/******@orcl] -v -resolve C:\Server\src\net\dev\Util.java
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variable serial1 varchar2(1000);
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I have seen similar problems on other forums, but no solution posted
[http://oracle.ittoolbox.com/groups/technical-functional/oracle-jdeveloper-l/run-an-exe-file-using-oracle-database-trigger-1567662]
I have posted this in JDeveloper forum ([t-853821]) but suggested to post for forum in DB.
Can anyne help?

Dear Peter,
You are totally right, I got this as mistake copy paste. I'm just having a Java utility for running external files outside Oracle DB, this is the method runFile()
I'm passing it the content of script and names of file to be created on the fly and executed then deleted, sorry for the mistake in creating caller function.
The main point, how I claim that the line in code where creating external process is the problem. I have tried the code with commenting this line and it was working ok, I made this to make sure of the permission required that I need to give to the schema passing security permission problems.
The function script is running perfect if I'm executing vbs script outside Oracle using something like "cscript //NoLogo aaa1.vbs", but when I use the command line the call just never returns to me "cmd.exe /c bb1.bat".
where content of bb1.bat as follows:
echo off
vol C: | find /i "Serial Number is"
The above batch file just get the serial number of hard drive assigned when windows formatted HD.
Same code runs outside Oracle just fine, but inside Oracle doesn't return if I exectued the following:
variable serial1 varchar2(1000);
call A1( 'C' ) into :serial1;
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Thanks for tracing teh issue to that details ;) hope you coul help.

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Hi,
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For example say: The batch file(test.bat) contains this command: mkdir
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regards,
Krish
Edited by: Krish4Java on Oct 17, 2007 2:47 PM

Hi Turing,
I am able to pass the argument directly but unable to pass as a String.
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This should work for you-
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thanks for the responses.
But the design is like that.Then it needs to be fixed.
I think this is why there's a shortage of people to write computer applications, they are all wasting their time struggling to implement bad designs.
its a scheduler to be run on tomcat where we interact
with the running batch files and can't be changed.A scheduler in Tomcat? Why run a scheduler in an application server?
any help is appreciated.
I tried to execute the batch file from servlet it
runs , but i see the cmd.exe in windows task manager
and need a dos box open.
Any ideas?If you need a DOS box open then you need a signed-on user. So here's my patch:
1. Write an application that listens for messages from this Tomcat scheduler, and when it receives those messages it does something in a DOS box.
2. Have somebody sign on to the server and run that application.
3. Change the Tomcat scheduler to send messages to that application instead of trying to actually run it.
It's up to you what kind of messages you should send. There are plenty of choices.

Error running batch files from java source file???

Dear Friends,
hi,
this is with response to a doubt i had earlier ,
i want to run batch files from the java source file ,i tried using this code (here batrun is the batch file name that contains commands to run other java files)
try
String [] command = {"c:\\vishal\\finalmain\\batrun"};
Runtime.getRuntime().exec(command);
catch(Exception e)
but i got the following error.
java.io.IOException: CreateProcess: gnagarrun error= 2
plz. help me, i tried all combination w/o success,
in anticipation(if possible give the code after testing)
Vishal.

hello there,
i solved the prob. by using
cmd /c start filename ,but i need to pass parameters ie
cmd /c start java "c:/vishal/runfile a b" where a and b are the parameters. but it is not accepting this in Runtime.getRuntime.exec(),
any solutions ?????????
regards,
Vishal

How to run a batch file from within an Oracle 9i Form?

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Can u give me an example
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My java program tries to run a remote batch file which is located on remote Windows file system (and not on the WAS file system itself).
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cd c:\jobs
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iltlvt40 -u SAPServiceCE1 -p a2i2000! c:\automation\DiskSpace\runDiskSpace.bat
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Hi,
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Best regards,
Ahmad

How to pass arguments to a batch file from java code

Hi
I have a batch file (marcxml.bat) which has the following excerpt :
@echo off
if x==%1x goto howto
java -cp C:\Downloads\Marcxml\marc4j.jar; C:\Downloads\Marcxml\marcxml.jar; %1 %2 %3
goto end
I'm calling this batch file from a java code with the following line of code:
Process p = Runtime.getRuntime().exec("cmd /c start C:/Downloads/Marcxml/marcxml.bat");
so ,that invokes the batch file.Till that point its ok.
since the batch file accpets arguments(%1 %2 %3) how do i pass those arguments to the batch file from my code ...???
%1 is a classname : for ex: gov.loc.marcxml.MARC21slim2MARC
%2 is the name of the input file for ex : C:/Downloads/Marcxml/source.xml
%3 is the name of the output file for ex: C:/Downloads/Marcxml/target.mrc
could someone help me...
if i include these parameters too along with the above line of code i.e
Process p = Runtime.getRuntime().exec("cmd /c start C:/Downloads/Marcxml/marcxml.bat gov.loc.marcxml.MARC21slim2MARC C:\\Downloads\\Marcxml\\source.xml C:\\Downloads\\Marcxml\\target.mrc") ;
I get the following error :
Exception in thread main java.lang.Noclassdef foundError: c:Downloads\marcxml\source/xml
could some one tell me if i'm doing the right way in passing the arguments to the batch file if not what is the right way??
Message was edited by:
justunme1

1 - create a java class (Executer.java) for example:
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class Executer {
     public static void main(String[] args) {
          try {
               for (int i = 0; i < args.length; i++) {
                    System.out.println(args);
               Class<?> c = Class.forName(args[0]);
               Class[] argTypes = new Class[] { String[].class };
               Method main = c.getDeclaredMethod("main", argTypes);
               // String[] mainArgs = Arrays.copyOfRange(args, 1, args.length); //JDK 6
               //jdk <6
               String[] mainArgs = new String[args.length - 1];
               for (int i = 0; i < mainArgs.length; i++) {
                    mainArgs[i] = args[i + 1];
               main.invoke(null, (Object) mainArgs);
               // production code should handle these exceptions more gracefully
          } catch (ClassNotFoundException x) {
               x.printStackTrace();
          } catch (NoSuchMethodException x) {
               x.printStackTrace();
          } catch (IllegalAccessException x) {
               x.printStackTrace();
          } catch (InvocationTargetException x) {
               x.printStackTrace();
          } catch (Exception e) {
               e.printStackTrace();
2 - create a .bat file:
@echo off
java -cp C:\Downloads\Marcxml\marc4j.jar; C:\Downloads\Marcxml\marcxml.jar; Executer %TARGET_CLASS% %IN_FILE% %OUT_FILE%3 - use set command to pass variable:
Open MS-DOS, and type the following:
set TARGET_CLASS=MyTargetClass
set IN_FILE=in.txt
set OUT_FILE=out.txt
Then run your .bat file (in the same ms dos window)
Hope that Helps

How to run a batch file using java

Hi guys,
I want to run a batch file by running a java program.
i have tried for this code, but it is not working , plz guide me code.
Runtime r = Runtime.getRuntime();
     Process p = null;
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You will need this:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

URGENT:- Running a batch file from java program

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