How to close a external application with java

Question

Possible Duplicate:
Knowing which java.exe process to kill on a windows machine
How to kill a process in Java, given a specific PID

I am trying to find out how to close a particular external exe namely cwserv5.exe. I have succeeded in starting a new external exe and closing it .But not an existing process. Can you help? Below is what I was tinkering with but really lost to be honest

package com.TestCase;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class ReStartEXE {

    static Process pr; 

    public static void open() {

        //ProcessBuilder

         try {
             Runtime rt = Runtime.getRuntime();
             //Process pr = rt.exec("cmd /c dir");
              pr = rt.exec("C:\\APPLEGREEN\\webserv\\cwserv5rost.exe");         

             Thread.sleep(10000);
             //pr.wait(10000);
            //pr.waitFor();

             BufferedReader input = new BufferedReader(new InputStreamReader(pr.getInputStream()));

            // String line=null;

             /*while((line=input.readLine()) != null) {
                 System.out.println(line);
             }*/

             //int exitVal = pr.waitFor();
             //pr.destroy();
           // Process.kill(pr);
            // Runtime.getRuntime().exec("taskkill /F /IM cwserv5rost.exe");

             //System.out.println("Exited with error code "+exitVal);

         } catch(Exception e) {
             System.out.println(e.toString());
             e.printStackTrace();
         }
     }


    public static void Close() {

        pr.destroy();

    }

}

See also http://stackoverflow.com/questions/81902/how-to-find-and-kill-running-win-processes-from-within-java — Denys Séguret, Aug 27 '12 at 11:00

score 7 · Answer 1 · answered Aug 27 '12 at 11:02

You can do this by executing a process to close the process that you want to close.

In your comments I can see taskkill, which means that you're probably using Windows.

Runtime rt = Runtime.getRuntime();

rt.exec("taskkill /F /IM cwserv5.exe");

This will force the process with image name cwserv5.exe to end.

If you don't want to force it to end, don't use the /f tag.

For more information on taskkill, go to cmd (command prompt) and type taskkill /?.

Thanks all for you great help – user947265 Oct 31 '12 at 11:51 — user947265, Oct 31 '12 at 11:51

Ankur · Answer 2 · 2012-08-27T11:05:32.073

1

try this,

    Process proc = rt.exec("taskkill /F /IM cwserv5.exe");
    BufferedReader input = new BufferedReader(new InputStreamReader(proc.getInputStream()));
    while ((line = input.readLine()) != null){
         //do something
     }
    input.close();
    code = proc.exitValue();
    if(code==0){
        //success
    }
    else{
        //failure
    }

edited Aug 27 '12 at 11:05

answered Aug 27 '12 at 11:03

Ankur

11,601
5
32
66

Wait a sec. He wants to close `cwserv5.exe`. – eboix Aug 27 '12 at 11:05
yes, thats what this code will do, it is same as your code also giving the exitValue – Ankur Aug 27 '12 at 11:06

How to close a external application with java

2 Answers2

Linked