Run a batch file with java program

Question

try {                               
try {
    String[] command = {"cmd.exe", "/C", "Start", "D:\\test.bat"};
        Runtime r = Runtime.getRuntime();
        Process p = r.exec(command);
        p.waitFor();

    } catch (Exception e) {
        e.printStackTrace();
        JOptionPane.showMessageDialog(this, "Error" +"Execution!","Error",JOptionPane.ERROR_MESSAGE);
        }
    } catch (IOException ex) {
        Logger.getLogger(DBBackUp.class.getName()).log(Level.SEVERE, null, ex);
    }

When I run this code, I got only command promt. .bat file is not running. How can I execute the batch file using this code?

Thank in Advance

Can you please share your test.bat and the command prompt response. Try to add echo message as first statement in your batch file to see if it is running. — Dinakar, Mar 31 '13 at 15:04
If the bat file is a short running script then you may not be able to see the window. — Extreme Coders, Mar 31 '13 at 15:06

score 2 · Answer 1 · answered Mar 31 '13 at 17:12

2

Consider using Apache Commons Exec.

answered Mar 31 '13 at 17:12

noahlz

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score 1 · Answer 2 · answered Mar 31 '13 at 15:10

let your "test.bat" be like this:

dir
pause

then you can execute this batch file as follows:

try
{
 Runtime r = Runtime.getRuntime();
 Process p = r.exec("rundll32 url.dll,FileProtocolHandler " + "D:\\test.bat");
 p.waitFor();
}catch(Exception ex){ex.printStackTrace();}

score 1 · Answer 3 · answered Mar 31 '13 at 15:20

You can try something like this:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;


public class BatchExecuteService {

    public static void main(String[] args) {
        BatchExecuteService batchExecuteService = new BatchExecuteService();
        batchExecuteService.run();
    }

    public void run() {
        try {
            String cmds[] = {"D:\\test.bat"};
            Runtime runtime = Runtime.getRuntime();
            Process process = runtime.exec(cmds);
            process.getOutputStream().close();
            InputStream inputStream = process.getInputStream();
            InputStreamReader inputstreamreader = new InputStreamReader(inputStream);
            BufferedReader bufferedrReader = new BufferedReader(inputstreamreader);
            String strLine = "";
            while ((strLine = bufferedrReader.readLine()) != null) {
                System.out.println(strLine);
            }
        } catch (IOException ioException) {
            ioException.printStackTrace();
        }
    }
}

Run a batch file with java program

3 Answers3

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