How to close running process using java?

Question

I am using java Runtime.exec() method to execute bat file,in bat file i have write code that execute jar.This jar contain thread class that pooling infinite time the rabbitmq queue,if message are found then perform operation on that,mean the process will run infinite. i want to kill this process using java code,also i want know that can this method are able to execute shall script on Linux Os.

 **Used java code**

 String myCMD = "cmd.exe /C start c:\\elasticmgmtservice.bat";
 Runtime rt = Runtime.getRuntime();
 Process proc = rt.exec(myCMD);

**used batch file**

cd c: 
cd ElasticMgmtService\ 
java -jar ElasticIndexManagementService.jar config\ElasticIndexManagementService.xml

please help me to solve the problem.

You cannot run a batch file on Linux, provide a specific version or rewrite the batch in Java! To kill the process take a look to http://stackoverflow.com/questions/6356340/killing-a-process-using-java — Adriano Repetti, May 03 '12 at 12:36

score 3 · Accepted Answer · answered May 03 '12 at 12:50

3

Runtime.exec(...) returns Process object which consists following methods

destroy()
exitValue()
getErrorStream()
getInputStream()
getOutputStream()
waitFor()

you can call destroy() which kills the subprocess. The subprocess represented by this Process object is forcibly terminated. or you can kill by passing taskkill /PID <process id> in Runtime.exec(...) or kill -9 <process id>

answered May 03 '12 at 12:50

Subhrajyoti Majumder

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i have try destroy() method but it doesn't close command prompt(process). String myCMD = "cmd.exe /C start c:\\elasticmgmtservice.bat"; Runtime rt = Runtime.getRuntime(); Process proc = rt.exec(myCMD); proc.destroy(); – Sameek Mishra May 03 '12 at 12:56
@sam - i have checked 'cmd.exe /C start mspaint.exe' is working fine with destroy(). Fact is there some process those are not responding destroy method. it better you close by 'taskkill' or 'kill'. – Subhrajyoti Majumder May 03 '12 at 13:07
@Quoi- when i run the following code with destroy method and 'taskkill' or 'kill' it will not responded, mean it does not kill the process when i try to kill manually from process list it show the java.exe process when i kill this process manually it terminated successfully.i did not understand what happen,if u have any idea please tell me. – Sameek Mishra May 03 '12 at 13:24
@sam - wht i think is it could be any other problem. can u please try it - Process p = Runtime.getRuntime().exec("cmd.exe /C start mspaint.exe"); p.destroy(); if it does not work then this is some other problem. cause above code run well in my system. – Subhrajyoti Majumder May 03 '12 at 13:32
@Quoi-i tried but when destroy method called the mspaint windows not closed on my PC and what about your side it closed or not? – Sameek Mishra May 03 '12 at 13:39
@sam - yes it works in my system. why don't u try in from command prompt or shell. – Subhrajyoti Majumder May 03 '12 at 13:49

score 1 · Answer 2 · answered May 03 '12 at 12:47

1

In Windows

Runtime rt = Runtime.getRuntime();
rt.exec("taskkill " +<Your process>);

In Linux

Runtime rt = Runtime.getRuntime();
rt.exec("kill -9 " +<Your process>);

answered May 03 '12 at 12:47

Diego D

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This seems like a terrible idea. Using Process#destroy() is much preferable. – dantiston Feb 20 '16 at 22:58

score 0 · Answer 3 · answered May 03 '12 at 12:43

0

Runtime.exec() returns a Process object, which is an handler for the process the exec method has created. To kill this process, you have to call Process.destroy();

answered May 03 '12 at 12:43

Alexis Dufrenoy

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How to close running process using java?

3 Answers3