Hi guys,
Well, I just figured it out...turns out that when I run it as a standalone
application, something like this works just fine:
File path = new File("C:/temp99");
String cmd = "test.bat";
Runtime.getRuntime().exec(cmd, null, path);
When I run it in Tomcat, however, the cmd _must_ include the path, like
this:
File path = new File("C:/temp99");
String cmd = "C:/temp99/test.bat";
Runtime.getRuntime().exec(cmd, null, path);
If I don't do this, it blows up. Is that wierd or what? What I can't figure
out is that in both cases I am using the same JDK (1.3.1), so I'm not sure
why the first example works standalone but not in a servlet. Wierd wierd
wierd. Oh well, at least it works... *sigh* :-)
Thanks for your everyone's help!
Christian
----------------------------------------------
Christian Cryder [[EMAIL PROTECTED]]
Internet Architect, ATMReports.com
Barracuda - http://barracuda.enhydra.org
----------------------------------------------
"What a great time to be a(n employed) Geek"
> -----Original Message-----
> From:
> [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]
> he.org]On Behalf Of Christian Cryder
> Sent: Friday, January 25, 2002 7:43 PM
> To: Tomcat-User
> Subject: Tomcat 4 & Runtime.exec()?
>
>
> Can anyone tell me why the Runtime.exec() call in the following piece of
> code runs fine standalone, but blows chunks in Tomcat 4?
>
> File path = new File("E:/WebProjects/lutris/cvs/Barracuda/src");
> String[] args = new String[] {"ant.bat","admin.sample1"};
> try {
> Process p = Runtime.getRuntime().exec(args, null, path);
> StringBuffer sbOut = new StringBuffer(1000);
> BufferedReader br = new BufferedReader(new
> InputStreamReader(p.getInputStream()));
> while (true) {
> String s = br.readLine();
> if (s==null) break;
> System.out.println(s);
> }
> br.close();
> p.waitFor();
> System.out.println (sbOut.toString());
> System.out.println ("Exit status: "+p.exitValue());
> } catch (Exception e) {
> System.out.println ("Unexpected error executing cmd:"+e);
> }
>
> Like I said, it works fine when run as an application. But in
> Tomcat, I get
> the following stack trace:
>
> Path: E:\WebProjects\lutris\cvs\Barracuda\src (exists=true)
> Args[0]: ant.bat
> Args[1]: admin.sample1
> Unexpected error executing cmd:java.io.IOException: CreateProcess: ant.bat
> admin.sample1 error=2
> java.io.IOException: CreateProcess: ant.bat admin.sample1 error=2
> at java.lang.Win32Process.create(Native Method)
> at java.lang.Win32Process.<init>(Unknown Source)
> at java.lang.Runtime.execInternal(Native Method)
> at java.lang.Runtime.exec(Unknown Source)
> ...
> <snip>
> ...
>
> Suggestions? Is there something I don't know about invoking Runtime.exec()
> from with a servlet?
>
> Thanks,
> Christian
> ----------------------------------------------
> Christian Cryder [[EMAIL PROTECTED]]
> Internet Architect, ATMReports.com
> Barracuda - http://barracuda.enhydra.org
> ----------------------------------------------
> "What a great time to be a(n employed) Geek"
>
>
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