Launch Java app through a bat file

Question

Hi,
Because I have to launch my Java App through a batch file, I don't know if I can create a new java class to execute this bat file to launch my Java App? Is that gonna work?
Henry.

Answer 1

Yes I created a batch file and tested. If I execute my batch file, the java app will be lauched as expected.
Here is my java class that execute my batch file
import java.io.*;
public class LaunchTest {
public static void main(String args[])
String cmd[] = new String[3];
try
String osName = System.getProperty("os.name" );
//System will detect current operating system
if( osName.equals( "Windows NT" ) || osName.equals( "Windows 2000" ) )
cmd[0] = "cmd.exe" ;
cmd[1] = "/C";
cmd[2] = "c:\\Run.bat"; //Run.bat will set classpath and launch my java app
else if( osName.equals( "Windows 95" ) || osName.equals( "Windows 98" ) )
cmd[0] = "command.exe" ;
cmd[1] = "/C";
cmd[2] = "c:\\Run.bat";//Run.bat will set classpath and launch my java app
Runtime rt = Runtime.getRuntime();
//running the commands
Process proc = rt.exec(cmd);
// any error message?
StreamGobbler errorGobbler = new
StreamGobbler(proc.getErrorStream(), "ERROR");
// kick them off
errorGobbler.start();
               // any error???
int exitVal = proc.waitFor();
catch (Throwable t)
t.printStackTrace();
System.out.println("error...");
And here is my batch file
@echo off
set path=e:\jbuilder4\jdk1.3\bin
set classpath=E:\JBuilder4\jdom-b7\jdom-b7\build\jdom.jar;E:\JBuilder4\jdom-b7\jdom-b7\lib\xerces.jar;.
d:
cd AutoTest\classes
java FirmwareTestPack.FirmwareMainClass
exit
When I run the java class above, Dos prompt popped up for a second then disappeared. It did not launch my Firmware pplication.
Thank you.