How to execute a cmd file from the java code?

[navat venu]

How to execute a cmd file from the java code?

Actually i have to restart the weblogic server, when i click a button
on my jsp page.
So, I wanted to execute stopWeblogic.cmd and startWeblogic.cmd from the code.

How to do this?

[Kaleeswaran Karuppusamy]

Originally posted by navat venu:
How to execute a cmd file from the java code?

Actually i have to restart the weblogic server, when i click a button
on my jsp page.
So, I wanted to execute stopWeblogic.cmd and startWeblogic.cmd from the code.

How to do this?

try{
Process process1 = Runtime.getRuntime().exec("\\directoryPath \\stopWeblogic.cmd");
}catch(Exception e){};

[navat venu]

I tried running this code,

try{
Process process1 = Runtime.getRuntime().exec("C:\\bea\\user_projects\\domains\\base_domain\\startweblogic.cmd");
}catch(Exception e){};

Its not starting the server though it is not giving any errors.

[Ulf Dittmer]

}catch(Exception e){};

How do you know there are no errors if you suppress all exceptions?

How are you handling the input and output streams of the child process?

[Rob Spoor]

Unless you read from both the input and error streams from a process, you risk freezing the process because its buffers are full.

[navat venu]

How to read the input and outputstreams of a process?

[Ulf Dittmer]

in This article talks about what you need to watch out for when using Runtime.exec, especially the handling of the I/O streams.

I could imagine there being problems with this approach, since you're trying to kill the server that executes the command. That's just a hunch, though.

[Campbell Ritchie]

This same topic was discussed recently here.