Running bat files in java code

Hi,
I am trying to run a .bat file within java code like this.
Runtime.getRuntime().exec("c:\\Test.bat");
but no success. Could you please suggest how to run .bat file or simply a
DOS command from java code.
thanx in advance
Deepak Garg.

try this...
n reply whether it worked or not......
import java.util.*;
import java.io.*;
import java.net.*;
try
Runtime runtime = Runtime.getRuntime();
Process process ;
process= runtime.exec("./temp_install");
//code to print command line replies
InputStream stderr = process.getInputStream();
InputStreamReader isr = new InputStreamReader(stderr);
BufferedReader br = new BufferedReader(isr);
String line = null;
while((line=br.readLine())!=null)
System.out.println(line);
catch(Throwable t)
t.printStackTrace();
}

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Running .bat files from java code

Dear Forum,
I have seen numerous postings on the web about this question, still I have found no answer that works (for me)
I�m trying to run a simple .bat file from a piece of java code , however it does not work. No error message , but still.
Does anyone have a tip?
best regards
temuj
try{
String cmd = "cmd.exe C:\\mybat.bat";
Runtime.getRuntime().exec(cmd);
catch(IOException e){System.out.println("ERROR: "+e);}Message was edited by:
temujin

"cmd.exe C:\mybat.bat" is being passed to the OS for execution
what happens when in a terminal/dos window you execute letter for letter:
cmd.exe C:\mybat.bat
The output will be identical to what is happening when java makes this call.

How to call a .bat file from java code?

How to call a .bat file from java code? and how can i pass parameters to that .bat file?
Thanks in advance

thanks for ur reply
but still i am getting the same error.
I am trying to run a .bat file of together tool, my code looks like below
import java.lang.Runtime;
import java.lang.Process;
import java.io.File;
class SysCall{
     public static void main(String args[]){
          String cmd="D://Borland//Together6.2//bin//Together.bat -script:com.togethersoft.modules.qa.QA -metrics out:D://MySamples//Metrics// -fmt:html D://Borland//Together6.2//samples//java//CashSales//CashSales.tpr";
          //String path="D://Borland//Together6.2//bin//Together.bat ";
          Runtime r= Runtime.getRuntime(); //Declare the system call
          try{
               System.out.println("Before batch is called");
               Process p=r.exec(cmd);
               System.out.println(" Exit value =" + p.exitValue());
               System.out.println("After batch is called");
          /*can produce errors which must be caught*/
          catch(Exception e) {
               e.printStackTrace();
               System.out.println (e.toString());
I am getting the below exception
Before batch is called
java.lang.IllegalThreadStateException: process has not exited
at java.lang.Win32Process.exitValue(Native Method)
at SysCall.main(SysCall.java:17)
java.lang.IllegalThreadStateException: process has not exited

Run batch files through java code

Hi All
I need to run a batch file using java code . I am not getting any error, but also no output. Can someone let me know the problem with my code.The code i am using is
import java.io.*;
public class batchtest {
     public static void main(String[] args) {
          Runtime r = Runtime.getRuntime();
     Process p= null;
     String line;
          try{
          p = r.exec("cmd /c testBatch.bat");
          BufferedReader input = new BufferedReader
          (new InputStreamReader(p.getInputStream()));
     while ((line = input.readLine()) != null) {
     System.out.println(line);
     input.close();
          System.out.println("running...");
          }catch(Exception e)
               e.printStackTrace();
}

Maybe this helps:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

Call .bat file from java code

I need to call an application that uses a .bat file to execute from a java program. Is that possible?
This is the .bat file:
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importcli.exe ciaf2735 C:\Importcli\files\SC2735*.txt
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magaupe wrote:
I need to call an application that uses a .bat file to execute from a java program. Is that possible?
This is the .bat file:
importcli.exe ciaf2735 C:\Importcli\files\SAI2735*.txt
importcli.exe ciaf2735 C:\Importcli\files\CI2735*.txt
importcli.exe ciaf2735 C:\Importcli\files\SC2735*.txt
importcli.exe db1800 C:\Importcli\files\*.mdb
Hmmm, I wonder what would happen if there were a web search engine and you could research like this:
[http://www.google.com/search?hl=en&q=call+.bat+file+from+java]

Running Oracle startup or shutdown bat file from Java code

I have two bat files for the startup and shutdown of Oracle instance which works fine from the command prompt. But my requirement is to run it through a Java program. Please reply with full Java code. Also mention how I would get the status of the bat files that it is successfully executed or not and if not what is the error.

Your program is working fine, but there is another problem. What's happening now is I have to open the Login screen after the startup of oracle server is complete, but the next line of my program after Runtime.exec is the LoginScreen.show which immediately shows the login screen after executing Runtime.exec and when I am giving the login name and password and press enter, it shows Oracle not available exception, because the startup process is still in progress. I want to stop the execution of my next line of code until and unless my process of Oracle startup is complete.

Running bat-files from Java

Hello,
I have been trying to launch a bat-file from my Java code, running under windows, but with no success.
Here is my simple code:
Runtime.getRuntime().exec(new String[] {
"C:\\temp\\test.bat"
});This does nothing at all and generates no exception. Any suggestions?

It seems java has a real problem with this... if you
want to run another java program, for instance, you
cannot do that either with String cmd="cmd.exe /C
java myProgram"
I need to pass parameters from one program into the
program I'm going to open using java, that is why I
need to call it from my first program. It can open
executables and shortcuts, but has a real big problem
doing things with the command line.No it doesn't have a problem with it. You just must be doing something wrong. By the way, since "java(.exe)" is already an executable, there's little value in wrapping that by the "cmd.exe" shell (unless you want to use the command shell for some reason such as passing the redirector (>) symbols to it to let it redirect stdout / stderr to a file)

Running BAT file from Java

how would i go about calling a batch file in java?
a button is clicked that says "RUN" and then I want to run a batch file

Hi !!!
Im new to this forums but I think I can help you
You can execute a separate process by using the class Runtime. In this example I execute one batch file located on the same directory the Java App is in.
class Test
     public static void main(String a[])
          System.out.println("Executing Batch File");
          try{
          Runtime.getRuntime().exec("Runme.bat");
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}I hope that could help
see
how would i go about calling a batch file in java?
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Running .bat files from java applications

Has anyone tried to run a .bat file from a java application?
I know I can run java commands by getting the application's runtime, but I've a number of *.bat files I like to run from the application without having to extract the commands from the .bat files.
thks,

Crikey! You were answered very shortly after you posted your question, and you STILL haven't bothered to come back. And are you going to create a new userid the next time you ask a question, since bat2004 seems tied to this particular question?

Running .jar files from Java code

Hi.
I am designing a sort of platform to run some games which are saved in .jar files. Basically this platform is a menu from which the user can select the game which he/she wants to run. It also has the feature of adding new games.
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Im writing a utility and i need to be able to create and execute a .bat file from my program. I can create the .bat file fine but when i try to execute it nothing happens. I tried to use the following line of code to try to execute the .bat file (called make.bat) :
try
String parameterString = "\"C:\\WINNT\\System32\\cmd.exe\" C:\\ITS_Test\\make.bat";
Runtime.getRuntime().exec(parameterString);
catch (Exception e)
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The Runtime.getRuntime()exec() method worked fine when trying to execute an excel file but for some reason it dosen't want to work for the DOS prompt. Any ideas?

Thanks everyone for all the replies.
I have tried all the above with no luck. Im using netbeans, does anyone think that it could be a problem with the IDE.
I tired the following code :
String parameterString = "cmd.exe /C \"C:\\ITS_Test\\make.bat\"";
Process pr = Runtime.getRuntime().exec(parameterString);
pr.waitFor();
This code does not throw any exceptions but just hangs. I also tried:
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pr.waitFor();
and:
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Run chm help file through java code

hello,
would you tell me how can i run a help.chm file using java code. i am trign this but no luck.
first try
Process pp=run.exec("C:/Program Files/Internet Explorer/IEXPLORE.exe ./res/bobftphelp.chm" );
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Process pp=run.exec(" ./res/bobftphelp.chm" );
It run fine a help.doc file but not help.chm file.
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Thanka in advance
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The second address given to that function, does it relate to the class that its being called from? cause i've got
Runtime.getRuntime().exec("C:\\WINDOWS\\hh.exe .\\HelpFile_9_3.chm" );where HelpFile_9_3 is in the same folder as my class, but it won't work. Can anyone help?
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Edited by: Pulkse.co.uk on Sep 10, 2008 8:18 AM

How to run Executables or .bat files from Java?

Hi!
I need to open a Web Browser from Java App.
Please, help me to do this without calling JNI
-or-
provide me with sample which works with
Runtime.execute() method.
I have done full permission:
grant
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};Thank You in advance!

To run any command from java code, the method is
Runtime.getRuntime().exec( myCommandString )
Where, myCommandString is something like "/full/pathname/command".
If the pathname contains spaces, e.g. "c:\program files\windows\notepad", then enclose it in quotes within the quoted string. Or pre-tokenize them into elements of an array and call exec(String[] cmd) instead of exec(String cmd).
From JDK1.3 there are two new overloaded Runtime.exec() methods. These allow you to specify starting directory for the child process.
Note, there is a gotcha associated with reading output from commands. When the runtime exec's the process, it passes to it 3 streams, for stdin, stdout, and stderr; the out and err are buffered but the buffer size isn't very big. When your process runs, it reads (if needed) from in, and writes to out and err.
If it doesn't write more than the buffer-size, it can run to completion.
But if it tries to write more data to one or the other stream than the buffer can hold, the write blocks, and your process hangs, waiting for you to empty the buffer so it can write some more.
So after the exec call, get the streams, and read from them in a loop until they both hit end-of-stream (don't block on either one, just read whatever is available from each, each loop iteration).
Then when the streams have ended, call the process.waitFor() method to let it finish dying.
Now, here is a code snippet how you achieve this.
String strCommand = "cmd.exe /c " + strCommand;
boolean bWait = true;
//execute the command
try
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     Process pr = r.exec(callAndArgs);
     BufferedInputStream bis =new BufferedInputStream(pr.getInputStream ());
     int c=0;
     /** Outlet for IO for the process **/
     while (c!=-1)
          c=bis.read();
     /**Now wait for the process to get finished **/
     if(bWait == true)
          pr.waitFor();
          pr.destroy();
catch(Exception e)
     System.out.println("Could not execute process " + strCommand);
     return(false);

Running batch files thraugh java by passing parameters

Hi
I want to run a batch file by passing some parameters.
Eg: copy.bat "D:\live\hoe.txt" "D:\test"
while doing this from command prompt its working and i have written some java code for running this batch file.
String live="D:\\live\\how.txt";
String test="D:\\test";
String bat="D:\\copy.bat";
String[] command = new String[3];
command[0] = bat;
command[1] = live;
command[2] = test;
try {
Runtime.getRuntime().exec(command);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
but this time its not copying the file;
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Just another cross poster.
[http://www.java-forums.org/new-java/15005-running-batch-files-thraugh-java-passing-parameters.html]
db

Problems with calling a Bat file in java...

i'm having some issues when i try to call my bat file within java...
here is the code
Runtime.getRuntime().exec("cmd.exe C:\\dev\\CMIC\\components\\client\\bin\\startup.bat");
it starts up the bat file but it seems to only execute the first line in the bat, then it shuts it down... i dont get it. cuz if i call that bat from another bat it works fine.. if i click on it, it works fine why would java have a problem with it?

After doing some searching around... this is what i came up with.. but i still get the same results.. the dos screen pops up and then poof.. its gone..
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
public class test {
     public static void main(String Args[]){
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          try {
               ByteArrayOutputStream bos = new ByteArrayOutputStream(100 * 1024);
               Runtime rt = Runtime.getRuntime();
               Process proc = rt.exec(cmd);
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                    new StreamGobbler(proc.getErrorStream(), "ERROR");
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               errorGobbler.start();
               outputGobbler.start();
               int exitVal = proc.waitFor();
               //if ( DEBUG ) System.out.println( "cmd: '" + cmd + "' -> " + exitVal );
               errorGobbler.join();
               outputGobbler.join();
               //if (DEBUG && exitVal != 0)
               //     System.out.println(" ExitValue: " + exitVal);
               if (exitVal != 0)
                    return "";
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               bos.close();
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} // end of class
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          String type;
          OutputStream os;
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               this.type = type;
               this.os = redirect;
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                    PrintWriter pw = null;
                    if (os != null)
                         pw = new PrintWriter(os);
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                    BufferedReader br = new BufferedReader(isr);
                    String line = null;
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Running bat files in java code

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