How to run batch file with parameters in java?

Question

I have created a jar file called test.jar under C:\jars. I have JAR file under the same location named run.bat and it contains the below code -

@echo off

set exec_path=C:\jars java -cp %exec_path%/test.jar; com.mycomp.myapp.MyProgram "%1"%*

@echo on

It is running successfully from command prompt with parameters.

Now I would like to run it from another JAVA program. Please suggest.

Thanks!

cmd /c test.bat. batch files are not executable, so you execute a cmd shell and tell it to run the batch file. — Marc B
– Marc B, Commented Dec 24, 2015 at 16:01

ControlAltDel · Accepted Answer · 2015-12-24 16:02:42Z

1

I've encountered this issue before. The answer is that you have to run cmd.exe or bash or whatever shell you've got, then feed in the command to that process via the process input/output streams.

Process p = Runtime.getRuntime().exec("cmd");
p.getOutputStream().write("mybatch.bat\n");

answered Dec 24, 2015 at 16:02

ControlAltDel

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3 Comments

Arya Over a year ago

How can I pass parameters?

Roy S Over a year ago

You can simply do p.getOutputStream().write("mybatch.bat 1 2 3\n");. Here I have passed 3 parameters.

Arya Over a year ago

p.getOutputStream().write() is not accepting a String as parameter. I tried by converting them to bytes but it is not working.

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