CODEWITHSUNDEEP
javabatch-file
Zaw Than oo
Zaw Than oo

Reputation: 9935

How to execute .bat from classpath in java?

How to execute .bat from classpath? I can only execute .bat the specific directory like D:\temp\kill-chrome.bat.

ClassPath Directory 

+ src
    + -> .java files ....
+ resource
    + kill-chrome.bat

My Program does not work.

String path = "cmd /c start /resource/kill-chrome.bat";
Runtime rn = Runtime.getRuntime();
try {
    Process pr = rn.exec(path);
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}

Upvotes: 0

Views: 796

Answers (2)

Mathias Begert
Mathias Begert

Reputation: 2471

I think the proper way to get the path of a file in your classpath would be something like this:

URI uri = YourClass.class.getResource("resource/kill-chrome.bat").toURI();
String path = new File(uri).getAbsolutePath();

This aproach would go from your working directory (and this could differ):

new File("resource/kill-chrome.bat").getAbsolutePath();

Upvotes: 0

Zaw Than oo
Zaw Than oo

Reputation: 9935

I got simplest way which is using file.getAbsolutePath() method. I am not sure which is suitable way or not.

String realPath = new File("resource/kill-chrome.bat").getAbsolutePath();
String path = "cmd /c start " + realPath;
Runtime rn = Runtime.getRuntime();
try {
    Process pr = rn.exec(path);
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}

In runtime.exec(commend), cannot directly to access the classpath?

Upvotes: 1

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