It may be that some useful output is going to the process's standard
output or standard error. You can get at that by calling
Process.getInputStream() andProcess.getErrorStream()
Rahul wrote:
> Hi,
> Thanks a lot for your replies
>
>
> -lothar, its not leading to an IO exception, I checked it
> - paul, i could not follow what you were trying to say
>
>
> when changed to cmd to notepad, the notepad opens
>
> when I read more about the exec command it says that it does not open
> the command prompt(the black window), but it still executes the batch
> job
> so i am using the string :
> try {
> Runtime.getRuntime().exec("cmd.exe /C start
> test.bat");
> } catch (IOException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
>
> test.bat makes a hello directory in the specified location, but its
> not working from this code.
> if recognizes that its executint test.bat but theres no output
>
> when im runnning test.bat from dos prompt the desired output is
> obtained but not from this
>
>
> On Aug 12, 11:15 am, Paul Robinson <[email protected]> wrote:
>
>> Try:
>>
>> Process p = Runtime.getRuntime().exec("cmd.exe");
>> InputStream is = p.getInputStream();
>>
>> and then look at what you can read from the input stream
>>
>> Rahul wrote:
>>
>>> Hi,
>>> I want to execute dos commands from gwt. Reading from this forum I
>>> have to invoke the call from server not from the client.
>>> This is my server side code:
>>>
>>> public String greetServer()
>>> {
>>> try {
>>> Runtime.getRuntime().exec("cmd.exe");
>>> } catch (IOException e) {
>>> // TODO Auto-generated catch block
>>> e.printStackTrace();
>>> }
>>> return "Hello";
>>>
>>> }
>>>
>>> I am getting success at the client side that it was executed properly,
>>> but I have one question: should the dos prompt window open when i
>>> execute this program?? i tired putting cmd,cmd.exe but still the dos
>>> prompt doesnt open
>>> can anyone tell me what should i do ?
>>>
> >
>
>
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