How to run exe in servlet?

Question

I need to run a local exe program and here is the code in servlet.
private static Exception error = null;  
         public static boolean runBatch() {  
              boolean result = false;  
              try {  
                   Runtime r = Runtime.getRuntime();  
                   String base = System.getProperty("C:\\Program Files\\UCB\\ATT\\Graphviz\\bin\\");  
                   String target = base+File.separator+"dot.exe";  
                   System.out.println("Target: "+target);  
                   Process p = r.exec(target);  
                   result = true;  
              catch( IOException ioe ) {  
                   ioe.printStackTrace();  
                   error = ioe;  
              return result;  
         } 

Answer 1

You need to handle the result and the error streams.
Carefully read this: [http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html] (all 4 pages).